Odan - Urr Odan - Urr was a long - lived Draethos male , who served as a Jedi Master and Jedi librarian during the height of the Galactic Republic . He preferred reading and studying rather than combat , though he was a master of the little known Jedi art of battle meditation . He was trained by the Celegian Jedi Master Ooroo . Odan - Urr was a Jedi Padawan in 5000 BBY , and during his time as the Watchman of Koros , he had a series of visions depicting the impending Sith invasion . He and his Jedi companion , Memit Nadill , attempted to warn the Galactic Senate of the Sith attack , but the Senate refused to listen . However , Odan - Urr had the backing of the armies of Empress Teta , and participated in the Battle of Kirrek , where Naga Sadow ' s Sith Empire attempted to crush the Republic . The Republic emerged victorious , though only at the expense of the life of Master Ooroo . In the aftermath of the war , Odan - Urr found an ancient Sith holocron — the only one known to have existed at the time — which he kept safely at all times . Shortly thereafter , he founded the Great Jedi Library on Ossus , where he became the Keeper of the Chamber of Antiquities for several centuries . He also studied the Jedi Code during his time as a Jedi Master , creating a revised version which lasted for thousands of years after his death , until the Great Jedi Purge in 19 BBY . He was widely regarded as one of the most influential members of the Jedi Order for that work . Odan - Urr presided over the Conclave at Deneba in 3996 BBY , where the darksiders known as the Krath attempted to slaughter the Jedi . Odan - Urr was one of the survivors ; however , the attack was one of several in the leadup to the Great Sith War — a galaxy - wide conflict which took the lives of hundreds of Jedi . During the war , Dark Lord of the Sith Exar Kun learned of Odan - Urr ' s Sith holocron , and went to the old Master ' s Great Library to claim it . Odan - Urr attempted to stop him , but the young dark sider lashed out at the Draethos with the Force , killing him . The truth about his death was only known by Kun , who lied to the other Jedi , telling them Odan - Urr had made him a Jedi Master before passing away . Odan - Urr was over one thousand years old at the time of his death . Biography . Early life and apprenticeship . Odan - Urr was a male member of the Draethos species and was born some time before 5000 BBY . Odan - Urr had blue eyes and gray skin . Draethos were natural predators , and they were discouraged by their planetary leaders from ever leaving their homeworld . Those that did were usually exiled because the path of the warrior was not for them , and they were stereotypically very intelligent and scholarly . Odan - Urr was one of those exiles ; he was found to be Force - sensitive , and eventually joined the Jedi Order . Odan - Urr became the apprentice of the revered Celegian Jedi Master Ooroo , who required a cyanogen - filled life - support tank for survival on oxygen - rich worlds . Ooroo was a Jedi instructor at a small Jedi Praxeum on a remote , mountainous planet called Ossus . Unlike most other aspiring Jedi Knights taught by Ooroo , Odan - Urr did not want to make history and was content to simply read about it . He spent almost all of his time in Ooroo ' s great library on the training planet , studying many ancient scrolls and documents and meditating on the Force . He had a particular interest in the history of the Sith , as well as some of the more obscure branches of the Force , including the Jedi power of battle meditation , the knowledge of which he would pass on to many students . Even after he completed his Jedi training and became a fully fledged Jedi Knight , Odan - Urr was still fascinated by legend and history and remained with his master at the Jedi Praxeum . He did go on occasional offworld excursions , though always at the urging of his master , and always with great reluctance . Ooroo let his apprentice study ancient documents of the Sith where most Masters would not , because he felt that Odan - Urr would never stray from the light . Five thousand years before the Battle of Yavin , Odan - Urr was sent on his first mission to the Koros system to help Empress Teta in her efforts to unite the seven planets of the star system . He was reluctant when his master told him of his task , but the wise Celegian replied that a Jedi had duties other than reading and studying . Ooroo chose Odan - Urr over the other Jedi at the Praxeum because he knew that the young Draethos would help save lives and restore peace , even by his very presence . Odan - Urr then departed to meet with Memit Nadill , Teta ' s green - skinned advisor , in the city Cinnagar on Koros major . Nadill was a far more experienced Jedi than Odan - Urr , so Ooroo planned that he would temporarily become the young Draethos ' master , teaching him skills that were necessary for a fully - fledged Jedi . Unification Wars . Odan - Urr met with Nadill and warned him that he was not a martial man , and that he preferred studying to combat . Nadill responded that perhaps a scholar would be more effective than the warriors who had so far failed in their attempts to unite the planets in the system . Teta had managed to unite and bring peace to six of the seven planets of the system she ruled , but her attempts to defeat the rebels on Kirrek had been disastrous . They had managed to drive back all attempts to attack them , and had recently begun firing on any ship , be it civilian or military , that flew within range of their weapons . Nadill accompanied Odan - Urr into Teta ’ s military command center as the Empress begrudgingly announced that another full scale military assault would be the only way to gain control of Kirrek , though she feared the casualties would be astronomical for both sides . Odan - Urr then told Nadill and the Empress of battle meditation , an old Jedi art that he had learned about in his studies . The Draethos Jedi told the others that the power would not only give Teta ’ s forces victory , but would also lower the death toll for the two armies . Battle meditation could drain the morale of enemies and boost the morale of allies , and skilled users could foresee an outcome that they desired . Memit Nadill agreed to use the power , and asked Odan - Urr to teach him as they traveled to Kirrek . Odan - Urr was slightly taken aback at the suddenness of it all , but he agreed to accompany Nadill to Kirrek and help the war effort with his battle meditation . He taught Nadill the ancient art , which the Jedi Advisor quickly mastered . They arrived on Kirrek , and together they used their shared power , breaking the spirits of their enemies while boosting the morale of the Tetan forces . Teta ' s men soon looked like they would prove victorious , and eventually broke through the blockade set up by the Kirrek pirates . Although many lives were saved , the broken - spirited rebels became desperate , and attempted to take down as many of Teta ' s men as possible , even at their own expense . That was something Odan - Urr had feared , though the rebels were eventually defeated , and their leaders later reached an agreement with Teta . Odan - Urr had played a massive part in ensuring Teta was victorious , though he was greatly distressed by the death and destruction he had witnessed . He was particularly upset at the death of two Humans piloting a supply ship that had been caught in the crossfire and had crashed . Memit Nadill reassured the young Jedi Knight that it could have been a bloodbath but for his battle meditation , and that he should never forget that . Although Odan - Urr wished to return to his studies in the tranquil Jedi Praxeum , Ooroo was impressed with how well his student had performed , and assigned his student to help Teta and Nadill restore order to the newly unified worlds . He then accompanied Teta at many gatherings and parades to show the people of Koros that the Jedi Order supported their empress . Odan - Urr , however , eventually grew tired of the attention and crowds . After one such procession , he and Memit Nadill rescued two siblings , named Jori and Gav Daragon , from two elite assassins hired to kill them by the Cha ' a merchant Ssk Kahorr , who was owed money by the pair of Humans . The Daragons had been cornered by Kahorr ' s assassins when Odan - Urr and Nadill intervened , ordering the mercenaries to leave Jori and Gav alone . They refused , and attacked the two Jedi with their primitive weapons . Using his lightsaber , Odan - Urr lashed out at one of the assassins , killing him , while Nadill sought a more peaceful resolution : he disarmed the remaining assassin and allowed him to flee . He also advised the two siblings to leave , telling them they were not safe in the Koros system . Odan - Urr was deeply ashamed of his violent actions ; his people were predators and he had acted on instinct . Visions . Later that evening , back in Teta ' s chambers , Odan - Urr had a vision of the funeral of Dark Lord of the Sith Marka Ragnos on the Sith mausoleum planet of Korriban , and the repercussions for the Republic that would ensue . In the vision , the young Jedi Consular saw two aspiring Sith Lords , Naga Sadow and Ludo Kressh , duel for Ragnos ' s throne . Sadow and his followers wanted to expand the borders of the Sith Empire and wage war on the Galactic Republic ; Kressh and his more conservative faction , however , wanted to remain hidden from the Republic , and felt that a war with such an enemy would be devastating for the Sith . During Sadow and Kressh ' s vicious fight , the spirit of the late Marka Ragnos appeared , telling the two Sith that though the Sith Empire was at the height of its power , its fate hung in the balance . He then told Sadow and Kressh to choose their battles wisely , for if they made the wrong decisions , all would be lost for the Sith Empire . When he awoke from the nightmare , Odan - Urr quickly rushed to find Memit Nadill , so he could share the details with the Jedi Advisor . He eventually met Nadill with Teta in the Empress ' s chambers ; there , he recounted the dream , and told them his interpretation of it . He remembered his studies of the Sith back with Ooroo , and knew that even though most had forgotten about them , the Dark Jedi banished from the Republic almost two thousand years earlier still posed a great threat to the Republic . Nadill trusted his young companion where many would not , and asked Teta to raise the matter at her next visit to the Galactic Senate on Coruscant . Although she did not understand the Force , Teta trusted her advisor and agreed to talk to the Senate about Odan - Urr ' s vision when she would visit Coruscant in three days time . The two Jedi accompanied Teta to Coruscant three days later . Odan - Urr had never been to the capital before , and was in awe at the sheer magnitude and population of the city planet . Nadill , who had been on the planet previously , told Odan - Urr that the Force was strong on the capital , but so were politics . Teta and her advisors then entered the great Senate Hall to speak with the assembly . Odan - Urr wanted to address the senators and the small group of Jedi who had attended himself , but Teta knew politics far better than the young Jedi , so she gave the warning instead . She told the assembly of Odan - Urr ' s dream and what it meant for the Republic , but the senators were highly skeptical , doubting Odan - Urr ' s credibility on account of his inexperience , reasoning that these were simply bad dreams , and that they had far more important things to worry about . The trio left , dejected , though Teta pledged her full military support to the defense of the Republic . When he returned to Koros , Odan - Urr remained worried and distressed with what was happening , and spent much time studying the scrolls in Teta ' s library . One day while Odan - Urr was studying , Memit Nadill arrived in the library , and summoned him to Teta ' s audience chamber . He was apprehensive with having to meet with Teta first ; he was expecting to have to go on another parade , but Nadill persisted and Odan - Urr was pleasantly surprised when he reached Teta ' s chambers , where Master Ooroo was waiting for his young apprentice . The old Celegian had also been plagued with dreams of the Sith , and had made contact with the three Jedi Knights present at the senate meeting . He then contacted Teta to learn of his student ' s progress , and when he heard that Odan - Urr had been having visions too , he immediately came to see his apprentice face to face . Odan - Urr was delighted to see his master again , though he expressed his displeasure at not being able to return to his studies ; Ooroo replied that a Jedi Knight must learn action as well as knowledge . The Celegian Master then told him that should the Republic confront the Sith Empire , a devastating war would ensue ; a war that would cross the fabric of hyperspace . Teta then led the others out onto a massive balcony and showed them her army , vowing never to let her system fall to outside invasion . Odan - Urr was looking at ancient scrolls with Memit Nadill in Teta ' s chambers when a female youth jumped from a window down in front of Teta . The Empress had survived many attempted assassinations in her time as ruler of Koros , so she initially thought the young girl was a particularly bold assassin . The young girl , whose name was Jori Daragon , fell to her knees and sobbed as Teta had her guards take the young girl away , but Odan - Urr ' s attention was caught when Jori mentioned the Sith Empire . He beckoned for the girl to be released , and she told him how she and her brother had set foot in the Sith Empire . Hyperspace explorers , they had entered random coordinates into their nav - computer and ended up on the planet Korriban . Naga Sadow befriended the two siblings , before forcing Jori to flee without her brother during a skirmish between the forces of the two competing Sith Lords . She had returned to Cinnagar on the " Starbreaker 12 " , but was arrested for the theft of her ship . Daragon had managed to escape and thought that Teta was the only person who could help her . Odan - Urr knew the evidence could sway the Senate and the Jedi Order . Sadow , however , had placed a tracking device on Jori ' s ship , and was ready to launch a full - scale invasion on the Republic . Great Hyperspace War . Nadill traveled to Coruscant to meet with the Jedi Knights , while Odan - Urr and his Master helped Teta prepare for the attack on Cinnagar . He and Ooroo were to depart for Kirrek , where Odan - Urr had previously defeated the marauding rebels . The rebels had since pledged their allegiance to Teta in an attempt to gain amnesty for their actions , and had begun fighting against the Sith alongside Teta ' s force . Before he left , Odan - Urr gave a spare lightsaber to Jori Daragon , who wished to aid the effort to repel the Sith . He did not want to face real combat , and was worried about all the suffering and destruction that the war would inevitably cause . Ooroo , however , remained calm and attempted to help his apprentice feel the same , telling him that even though he was in a tank , the Celegian would also be helping the war effort . Odan - Urr eventually calmed down , and knew that the pardoned rebels and Teta ' s men would triumph over the Sith , and the exiled rebels on Ronika , the prison planet of the system , would soon arrive to act as reinforcements . The combined forces of Teta and commander Llaban , the leader of the former pirates , formed a perimeter around a great stone citadel , wielding a wide variety of primitive weapons . Hundreds of Sadow ' s warships flew in the sky , sending down thousands upon thousands of Sith pods , each filled with well over a hundred expertly - trained warriors . The Sith attacked on huge Sith war behemoth s and Sith war worm s , charging for the citadel , ordered by their leader , Shar Dakhan , to tear down the great building and leaving nothing but rubble . After much fighting , the reinforcements from Ronika had yet to arrive , and the Massassi , a group of elite Sith warriors , were causing the Republic many casualties . Odan - Urr had tried to use his battle meditation , which had helped him before , but Massassi possessed a kind of single - minded fury that he could not sway at all . He became very worried , and asked his master how would they fight such a vast enemy . The old Celegian told his apprentice that they would fight them to the best of their abilities , with the Force as their ally . As the marauding hordes of Massassi moved closer to the two Jedi , who had yet to engage any enemies in combat , a young soldier roared at Odan - Urr , telling him to help them fight back the Sith , who had used to ladders to climb over the citadel wall . The Sith were routing the Republic above the citadel , though Master Ooroo had foreseen that . He ordered the Tetan forces to retreat , including his apprentice , who reluctantly agreed to back away after receiving stern words from his mentor . The young Draethos Jedi Knight watched in horror as his Master and friend approached the group of Massassi , who were encouraged by the sudden withdrawal of Republic . Ooroo then punctured his cyanogen tank with one of his fleshy tentacles . The life support chamber released his poisonous gas , killing many of the Massassi instantly , while oxygen flooded into the Celegian ' s chamber , slowly killing him . However , more Sith continued to attack . Suddenly , hundreds of ships , originally thought to be Sadow ' s , appeared in the sky . They turned out to be the soldiers from Ronika , and suddenly the Sith were on the back foot . Simultaneously , Naga Sadow ' s concentration had been broken aboard his meditation sphere , where he had been subtly affecting the outcome of the battles across Republic space , and using Sith magic to create illusory soldiers . The Republic force ' s morale soared after these developments , and they successfully drove their enemies off Kirrek . The Sith eventually fled to Korriban and the other planets of the Empire . Meanwhile , Odan - Urr grieved over the loss of his mentor , who was slowly being killed by exposure to the oxygen . Ooroo said he wished he could have floated out into the great seas of his home world one last time , and Odan - Urr replied that he wished he could have stayed with his master at the Jedi Praxeum forever . Ooroo then made a prophecy that Odan - Urr would become one of the most ancient Jedi ever , and would die among his beloved scrolls . The ancient Celegian then became one with the Force , and Ooroo ' s former Padawan was visibly grief - stricken . Aftermath of the Great Hyperspace War . Odan - Urr was left alone to his misery on Kirrek , as the victorious soldiers set about repairing the damage done by the attempted invasion . He commented that it turned out both better and worse than in his visions ; the Republic had proved victorious , yet his master Ooroo was lost for all time . The despondent Jedi watched as the former rebels and pirates of Kirrek announced their amnesty , and that they should help bring a time of peace to the Republic . Odan - Urr eventually returned to Cinnagar to be with Empress Teta , and was with her on a balcony when Memit Nadill arrived from Coruscant , where he and three other Jedi had fought off the Sith . He decided to search one of the abandoned Sith ships orbiting the planet , and found a brightly glowing , fully intact , Sith holocron once used by Naga Sadow , which , believing he would never be seduced by the dark side , Odan - Urr took and kept safely guarded at all times . It eventually found a home in the Chamber of Antiquities of the Great Jedi Library , though Odan - Urr sometimes carried it on his person . Although it was said that intense interaction with dark side objects — such as the recovered Sith holocron — would slowly corrupt and turn the users to the dark side , Odan - Urr was able to resist the temptation of the dark side , and along with several of the other Jedi Masters of his time , he made several insightful discoveries into the history of the Sith . There were many aspects of the corrupt device that baffled Odan - Urr , and he did not claim to ever fully understand it . Odan - Urr had some interview with Jori Daragon and Anavus Svag about the events of the war . Years later he created a record about the war using his experience , the information granted by Jori , Anavus , and the Dark Holocron . After the war , Odan - Urr used his extensive knowledge of largely forgotten Force powers to ensure that the Sith Empire would not launch another invasion attempt . Although Sadow had been chased to the moon of Yavin 4 , and Kressh had been killed , many of the other Dark Lords and members of the Sith Council remained at large . Odan - Urr used the little - known power of Sever Force on the remaining Sith . The power drained them completely of the Force and was irreversible . Because of its permanence , Odan - Urr had to be careful when using the power , as the fate was to be reserved for only those who had committed truly unforgivable deeds . The founding of the Great Jedi Library . After the war , Odan - Urr began to gather many ancient documents and study the Jedi Code . He had not forgotten his Master ' s dying words , and decided to build a Great Jedi Library , full of the ancient books and scrolls which he cherished . Shortly after the Great Hyperspace War , construction of the Great Jedi Library began on the planet Ossus , where Ooroo had spent many years training him previously . After centuries of gathering documents and building up the Great Library , Odan - Urr had made the huge complex a great repository of knowledge of all sorts , which acted as a training center for hundreds of Jedi Knights throughout its history . Odan - Urr had devised a categorization system for the vast amount of documents he had gathered ; they were stored in separate sections , depending on the age and importance of each . The four main categories were " Pre - Hyperdrive , " " Pre - Republic , " " Early Republic , " and " Mature Republic . " Most of the data was contained on reader tapes and holographic media , although some of the more ancient knowledge was stored on traditional paper scrolls and books . Although the ancient books and scrolls was eventually translated onto electronic forms , the Chamber of Antiquities preserved the ancient writing for historical purposes . Odan - Urr became the Keeper of Antiquities , presiding over the Chamber of Antiquities , which contained all sorts of ancient items preserved in the interest in history . He was of the opinion that all knowledge — even knowledge of the dark side — should be kept , and might one day prove useful . He kept the Sith holocron he had found after the Great Hyperspace War , storing it in the Great Library , though only Odan - Urr and those approved by the Jedi High Council were allowed access to it , and strict supervision was always in place . The Chamber of Antiquities was deliberately built like a maze , so that it was difficult for those who had not been trained to access potentially harmful material . He also believed that any one who wished to learn should be allowed to do so , so every stairway leading to the lower levels was open . He eventually became a Jedi Master around four hundred years after the death of Ooroo , and presided over the Jedi assembly for another six hundred years , living through such conflicts involving Jedi as the Gank Massacres and the Vultar Cataclysm . Master Odan - Urr spent much time studying ancient scrolls and artifacts at his Great Library on Ossus , eventually becoming one of the most revered Jedi Masters of the era . Many of his teachings came from these years of meditating , studying and talking with the powerful Jedi Masters of the time . Jedi Code . Sometime around when he achieved the rank of Jedi Master , Odan - Urr began to extensively study the Jedi Code . His teachings on the Code laid the foundation of the Jedi Order as it was during the Jedi Master ' s time , and he was described by some as the most influential Jedi ever to have lived . After examining the Code , he began to lecture and teach others on the importance and meaning of the Code . His teachings , known as The Teachings of Master Odan - Urr , and his modifications to the Code laid the foundation for the Jedi Order as it was until the Great Jedi Purge of 19 BBY . Many Jedi complained of the Code being frustratingly difficult to understand , so Odan - Urr set about clarifying and refining it , and his version of the Code lasted over four thousand years . The Teachings of Master Odan - Urr were thought to be very important , and many Jedi studied them , though few really understood what the Draethos was saying . He felt that , though they may have known its words by heart , few Jedi really understood the Code , and that only with a complete understanding of the Code could a Jedi truly achieve mastery of the Force . Odan - Urr also encouraged Jedi to meditate on the Force every day . He taught his students that by meditating often , they would be able to recognize their mistakes far quicker than if they did not meditate , and thus could set them right . He had other views on the matter , though he usually left them unsaid . He knew that by regularly examining his emotions , he could ensure that emotion , love , or ignorance were not interfering with his clarity of mind . He also felt that Jedi who refused to meditate knew they had acted wrongly and were attempting to lie to themselves about it . Another of Odan - Urr ' s teachings was that the idea that a Jedi should never lie or manipulate , even for good , was nonsense . The Jedi Master taught his students that it was justifiable for a Jedi to act deceptively if he or she had righteous aims . He also said that , though he understood justice , it was occasionally necessary for a Jedi to practice discretion . He also taught his students that their use of the Force to satisfy their curiosity should be frowned upon — though it was sometimes necessary to use the Force to invade the privacy of others , one should do so in moderation . Another of Odan - Urr ' s teachings which formed part of the Jedi Code was one entitled " Honor the Jedi Order . " He told the young Jedi that if one Jedi behaved poorly in front of a Republic citizen , that person might incorrectly think that that was usual behavior for a Jedi ; it would take many more well - acting Jedi to change that person ' s opinion . Odan - Urr told his students to never act unkindly or in an undignified way in front of people . He had many more teachings . One of his lessons was that unswerving bravery was not necessarily a good thing . Many youthful and unexperienced Jedi thought that by being brave , they were removing fear from their lives — it was said that fear led to the dark side . He told Jedi to act as the Force saw fit , and not in what was the most brave way . The Draethos Master also said that if a Jedi decided to draw his lightsaber , he must have been ready to kill — and if he was not , he should leave his weapon at his side . What he meant was that a lightsaber should not be used to inflict fear upon an enemy , but to end the battle as quickly and decisively as possible . One of Odan - Urr ' s most famous comments , though not part of his commentaries on the Code itself , was that a Jedi should make sure to learn other skills , unrelated to their Force abilities . Conclave on Deneba . In 3996 BBY , Odan - Urr called a great Jedi Convocation at Mount Meru the planet Deneba . A rising cult , calling themselves the Krath , were wreaking havoc in what was formerly known of as the Koros system ; it was now called the Empress Teta system in memory of the queen who brought peace to it some one thousand years earlier . The Krath , led by two youthful siblings of the royal family named Satal and Aleema Keto , had overthrown the Tetan aristocracy and were using Sith powers to quash any attempts by the Republic to capture them . Much of the Ketos ' abilities were actually learned from Sith teachings Odan - Urr had recovered and documented in the aftermath of the Great Hyperspace War . The Jedi Masters were determined to bring the Krath to justice , though they also foresaw a far greater disturbance that was about to engulf the galaxy . As well as some senior Senators , thousands of Jedi from all regions of the galaxy attended , including such Masters as Thon , Arca Jeth and Vodo - Siosk Baas , as well as the foremost Jedi Knights of the age , Nomi Sunrider and Ulic Qel - Droma . As he waited for order , Odan - Urr thought of the past and the future . Using telepathy to communicate with the attendees , he eventually brought the meeting to a start , telling the masses of Jedi of the Republic and Jedi ' s recent failure in their joint efforts to apprehend the Krath , and asked if enough military force had been used . He then called out Nomi Sunrider and Ulic Qel - Droma , the two Jedi who led the botched attempt on Koros Major . Qel - Droma , who had been made Jedi Watchman of the Teta system just prior , told the Jedi and Senators in attendance of his plan to bring down the Krath . Qel - Droma planned to infiltrate the Krath , pretending he had joined the dark side , and learn the secrets of Satal and Aleema Keto , and then use them to bring the Krath down . The other Jedi , both Knights and Masters , blatantly wrote off the idea . Knights Shoaneb Culu and Dace Diath told Qel - Droma such an attempt would end in disaster , while Qel - Droma ' s Master Arca told him the dark side would lead only to destruction . As the Jedi discussed Qel - Droma ' s idea , a Tetan corsair lay hidden among the other vessels above Deneba and released a barrage of life pods , each containing hundreds of freshly produced war droids . At the same time , modified service droids came to life , turning on the Jedi ; the droids were programmed to attack the wisest and most important of the Jedi . Odan - Urr was one such Jedi , and he was too old and feeble to fight . However , shielded by many of Jeth and Baas ' s apprentices , he managed to survive , though the same could not be said for all the Jedi Masters . Master Jeth had been brutally killed by one of the war droids , something which Qel - Droma , who had been defending his Master , felt deeply responsible for . Eventually , the battle was won , though great damage to both life and property had been done . The Jedi discovered that the droids were of Tetan manufacture , and that the Krath had planned the ambush . Wanting revenge for his Master , Qel - Droma decided to carry out his plan , despite the warnings of Master Thon . Qel - Droma ' s mind was already made up when Odan - Urr and Ood Bnar , a Neti Jedi Master almost as old as Odan - Urr , attempted to sway Qel - Droma ' s determination . Bnar showed Qel - Droma and his close friend Nomi Sunrider a definitive history of the Teta system , which was written by Odan - Urr ' s late friend , Empress Teta . Bnar gave the book to Qel - Droma , before introducing the Human youth to Odan - Urr , described as one of the oldest and wisest Jedi by the tree - like Master . He showed Qel - Droma his Sith holocron , telling him of the Jedi who once chose to conquer the dark side from within . The Jedi was ultimately seduced by the dark side , and eventually killed his own Master . Qel - Droma , stunned by the thought of a student killing his own teacher , refused to acknowledge that this would happen to him . He aggressively accused Odan - Urr of disapproving of him , and , despite the pleas of Nomi Sunrider , told the Masters that while they preferred to do nothing to prevent evil prevailing , he would risk his life to do so . Bnar and Odan - Urr , knowing that Qel - Droma would not be swayed , left , telling the young Jedi Knight that the Masters had offered their wisdom , and that the rest was up to him . Death . Ulic Qel - Droma ' s efforts ultimately failed . He was seduced and used by Aleema Keto , and he eventually joined the dark side . A young Human Jedi Knight known as Exar Kun had strayed from the light side , and had defied his Master , Vodo - Siosk Baas , to travel to Dxun to search Sith artifacts . He was eventually pronounced a Dark Lord of the Sith by the spirit of Marka Ragnos on Onderon , and Qel - Droma became his Sith apprentice . With Mandalore the Indomitable at their side , the two Sith waged war on the Republic . The conflict was later called the Great Sith War . Master Thon had sent Nomi Sunrider , a Jedi with great potential , to further enhance her battle meditation under Odan - Urr , who was extremely experienced at using the power . Sunrider , minding her child Vima , was discussing the situation of the Republic with the ancient Master . He thought there were far too much war and too much fighting ; war was inevitable , but it did not make a Jedi ; the Force did . Nomi then asked him about darksiders using battle meditation . Remembering Naga Sadow ' s ruthless attack on the Republic , he told her that it was not unheard of , though rarely practiced at the time . He told Nomi of the Dark Lords , like Sadow , who sat in their meditation chambers , creating illusory soldiers to scare off the enemy . Nomi was frightened with the prospect of having to deal with such powers , and Odan - Urr described to her an ancient Force power , which he was adept at using . A powerful Jedi could use the Force to sever another from the Force , blinding them from it forever more — far more devastating for the victim than anything else . Odan - Urr then told Nomi of the little known story of the Great Hyperspace War , how he used the power to sever many of the defeated Sith ' s connections to the Force , and how he had obtained his Sith holocron , which was , as far as he knew , the only one in existence . Nomi then departed , and thanked him for his insightful answers . Exar Kun had been on Ossus to recruit gullible Jedi to his cause when he overheard Odan - Urr speaking of the hidden treasures of the holocron . Desperate to unlock such power , Kun boldly approached the Master . Commenting to himself that dark times were ahead , Odan - Urr noticed the holocron glow brighter as it flew out of his hands and into Exar Kun ' s . Realizing he was in the presence of a deeply dark being , Odan - Urr drew on the light side of the Force and pushed Kun into the wall , believing him to be a corrupted Dark Jedi . Kun announced that he was in fact a Dark Lord of the Sith , and used the Force to inflict great pain on the ancient Draethos . Odan - Urr was too old and frail to defeat such evil , and fell to the floor . Fulfilling Master Ooroo ' s prophecy , he became one with the Force , surrounded by his beloved books . Legacy . The Great Sith War continued after Odan - Urr ' s death , with Kun luring many gullible Jedi to the dark side . He had them kill their Masters , while he himself slew Master Baas . Few survived the massacre , Master Thon and Jolee Bindo among them . Eventually , the Jedi Knights managed to defeat the threat of the Sith . Kun was ultimately defeated , and Qel - Droma was cut off from the Force by Nomi Sunrider , using the power Odan - Urr had taught her . Although Odan - Urr ' s teachings would remain in place for a long time , his Great Library did not . A supernova in the Cron cluster , caused by Ulic Qel - Droma and Exar Kun , ruined the planet and destroyed Odan - Urr ' s sacred Chamber of Antiquities . However , not all of the information stored on the planet was destroyed . Through the efforts of Thon , Oss Wilum , Nomi Sunrider , and many others , some of the Jedi lore contained within the great building was saved , though most of it was lost . Odan - Urr ' s friend and companion Ood Bnar used his Neti abilities to transform himself into a tree in an attempt to stop Exar Kun from stealing some ancient lightsabers . Most of the knowledge Master Odan - Urr had spent centuries gathering and studying was lost forever . Odan - Urr ' s teachings would continue to be used for thousands of years after his death . Because of his work on the Code , he was widely considered one of the greatest and most influential Jedi of all time . His inflexible view on the Jedi Code was one favored by more conservative Jedi , particularly during the period after the Great Sith War , in which the Jedi Council made many changes to its tenets ; Jedi were discouraged from starting families , and Masters were requested to take only one apprentice at a time , among other changes . Jedi Master Atris was a strong proponent of officially canonizing his interpretations of the Jedi Code in the period before the Mandalorian Wars , in memory of his recent death . Atris ' views were popular , and she eventually won much support and a seat on the Jedi High Council . As the Jedi Order solidified itself following the defeat of the Sith , the Coruscant Jedi Temple began to take shape as the headquarters of the Order . Along the Processional Way as of 3956 BBY , a giant bronzium statue of Odan - Urr was erected alongside the likenesses of fellow Masters Ooroo and Arca Jeth . Much of his teachings , particularly those on obscure topics such as Sever Force , were stored in the Tedryn Holocron , which was passed down through the generations until it reached the hands of Leia Organa Solo in 10 ABY . His records on the Great Hyperspace War were still the most comprehensive and widely - used over five thousand years after his death , and his scholarly achievements and preservation efforts were what he was generally remembered for . He was , however , not without his critics after his death , with many arguing that he was twice responsible for the emergence of the Sith . They put forward a theory that had he not saved the lives of Jori and Gav Daragon on Koros , the two siblings would never have encountered the Sith , and that the Great Hyperspace War might have been averted . Over a thousand years later , yet more historians commented that had he simply destroyed the Sith holocron he recovered in the aftermath of the Great Hyperspace War , Exar Kun ' s rise to power would have at the very least been delayed enough for the Republic to defeat him . Although these extremist views were not uncommon , numerous more stated that Odan - Urr was simply acting as the Force wished him to , so he was in no way responsible for the two wars . A glossy , carbonized statue of Odan - Urr was built on Exis Station , which the Jedi used for Great Jedi Convocations . Around 11 ABY , a young Jedi historian named Tionne found the statue on Exis station , and immediately recognized it as Odan - Urr — the sight of such a famous figure gave Tionne great pride . Odan - Urr was one of few Jedi to become one with the Force upon death . He also had the ability to create a Jedi holocron , and one of his holocrons was rediscovered by the Jedi Master Yuon Par over three centuries after his death . Personality and traits . Odan - Urr was an extremely scholarly individual , who preferred studying the hordes of ancient scrolls and documents in Master Ooroo ' s library to almost anything else . Were it not for Ooroo ' s constant reminders that a Jedi had duties other than reading and studying , he would never have gone on even routine Jedi assignments . He devoted his whole life to ancient documents , and during his thousand years alive he became a great repository for Jedi lore , often using historical stories to teach people what they needed to learn . Even while acting as the Jedi Watchman of Koros , Odan - Urr managed to find time to sneak off from proceedings and spend some time looking over the scrolls there , which he carried on his person at almost all times . In appearance , he had a sloping , rounded head and exposed teeth and was the same build and height as the average Human . When he was young , Odan - Urr was quite emotional , despite his training as a Jedi . During his time as the Watchman of Koros , he showed his emotional nature when confronting the two assassins after Jori and Gav . He lashed out at the alien with his lightsaber , letting his anger show . However , after his companion Memit Nadill told him of other ways to defeat his enemies , he managed to keep his anger in check . Odan - Urr was a deeply compassionate being , and in his youth mourned the deaths of both those that were close to him and those that he did not know . Ooroo ' s death had a great effect on his apprentice , and for days afterward he felt lonely and despondent , which was not the Jedi way . However , he eventually put the death of his Master behind him , and he began to distance himself from his emotions . Later , he would lecture hopeful Jedi Knights , and far more established members of the order , of the importance of ensuring that emotions did not cloud their judgment . Odan - Urr was an inquisitive being . During his Jedi training , he sought to learn as much as possible about the Jedi of old , and even the exiled Dark Jedi , who most young Jedi believed to be a mere myth . As he grew in wisdom and understanding in the Force , he began to question the Jedi Code . Most students simply learned the Code , but Odan - Urr was one of few to study it and gain a deeper understanding of what it meant . He had an intense craving for knowledge , and spent almost a thousand years studying in his sacred library . Throughout his many years , Odan - Urr forged many friendships with people , some of which lasted a very long time . He was extremely close to Master Ooroo , and even after he had finished his training he decided to stay with the Celegian on Ossus , to study more old scrolls . Ooroo ' s death caused Odan - Urr great distress . During his time of Cinnagar , he won the trust of Empress Teta , and her advisor , Memit Nadill . Nadill , an older and more experienced Jedi than Odan - Urr , taught him some skills that one picked up with experience , while Odan - Urr taught the green - skinned humanoid things he had learned in the vast library in his Jedi Praxeum . Teta also trusted her Draethos advisor , and even risked ridicule by her fellow Senators when she took his word about the Sith . Another person who made friends with Odan - Urr was Jori Daragon . He ensured she was not imprisoned by Teta ' s soldiers , and , realizing her Force potential , gave her a lightsaber to defend herself with during the Great Hyperspace War , although after the war Jori did not continue her training . Odan - Urr was also liked by many of the other Masters of his time , especially Ood Bnar . The two companions were the oldest Jedi during their time . Nomi Sunrider was also quite fond of the ancient male , as was her daughter Vima , whom Odan - Urr often gave sweets to . The young Jedi Knights seduced by Exar Kun were also upset at the death of the old Jedi Master . Odan - Urr was also a skilled teacher and leader . During his first real offworld mission , he taught Memit Nadill how to use battle meditation in just several hours , and passed his knowledge on severing one from the Force to Nomi Sunrider . He did not take any apprentices when he became too old and feeble to deal with one as energetic and inquisitive as he himself had been during his apprenticeship . However , nearly every Jedi who was trained on Ossus learned in one way or another from Odan - Urr , through his teachings on the Jedi Code or else when their Master referred them to the old librarian for instruction on a particular aspect of the Force that he was knowledgeable in . Odan - Urr was extremely fair - minded and was of the opinion that if someone wanted to learn , they had every right to . During his construction of the Great Jedi Library , he made sure that the doors to the Library were left open to all at all times . During the Conclave on Deneba , he allowed some of the younger Jedi to speak , where many more experienced Masters would not value the opinion of one so young . He also allowed people — though only those who had been approved by the Council — to examine some of the darker objects kept in the Chamber of Antiquities , while many other Masters did not let their apprentices learn about the dark side under any circumstances , even if their apprentice did not stray from the light . That was something he learned from his Master Ooroo , who allowed the Draethos to study the history of the Sith during his training on Ossus . Through his studies of history , Odan - Urr was considered very wise , and even among other powerful Masters such as Thon , Ood Bnar , Arca Jeth , and Vodo Baas he was described as one of the wisest . His knowledge of Jedi lore proved extremely useful when he was telling students not to do something — he could nearly always recall a similar situation where the Jedi failed . Were it not for his extensive knowledge and wisdom , the Republic would not have been warned about Naga Sadow ' s attempted invasion . Because of his previous traumatic experiences , namely the loss of Master Ooroo , Odan - Urr found it extremely difficult to recount his past experiences . Although he sought to learn and pass on as much as he could on all sorts of historical events , Odan - Urr shied away when asked to relay events in which he participated . It was only after the many persistent requests and urges of his students did he record the happenings he was a central part of , and afterwards he still retained a sense of discomfort when telling others of his most difficult times . Powers and abilities . Through his studies of some of the more obscure branches of the Force , Odan - Urr learned of an ancient Jedi art known as battle meditation . The power was extremely difficult to master , and when he was a youth it was generally unknown , even by other Jedi . It granted the user the power to determine the outcome of a battle , and ensure victory for their side . A Jedi could literally imagine what they wished to happen with their mind ' s eye and it would quickly become a reality , and they could turn their enemies against each other . It could also greatly affect the morale of both allies and enemies . During the final battle of the Unification Wars , Odan - Urr used the power to break the spirits of the Kirrek pirates , while simultaneously sending the morale of Teta ' s men soaring . However , the power had occasional drawbacks : broken - spirited enemies could often become desperate and attempt to kill as many hostiles as possible , even if it meant harming themselves . He was not the only Jedi of his era to use the power : Masters Ooroo , Arca Jeth , and Thon were also adept at it , while Odan - Urr taught Nomi Sunrider how to control the power just minutes before his death . Another little known power employed by the Draethos Jedi Master was Sever Force , a punishment reserved only for those who had truly committed terrible deeds . The power effectively cut the victim off from the Force , both immediately and , as far as anyone knew , completely irreversibly . Nomi Sunrider used the power on Ulic Qel - Droma on Ossus , after he had murdered his brother Cay . Sever Force could only be used on those who were truly corrupted by the dark side . Odan - Urr used the power in the aftermath of the Great Hyperspace War , on the fallen Dark Lords . Although he preferred not to have to resort to violence , Odan - Urr was reasonably skilled with using a lightsaber , though as a Jedi Consular he generally used the Force to aid him in battle . In his youth , he once lost control of himself and lashed out with his weapon , killing his opponent . However , after advice from the more experienced Memit Nadill , he began to gain control of his instincts . Under Ooroo , he carried a blue - bladed lightsaber which he had constructed himself . In his later years , he found that he had no need for such a weapon , and did not carry one . He also kept a spare lightsaber in his youth , which he gave to Jori Daragon . Odan - Urr was also a master of Force sense , which granted the user the ability to extend his senses through the Force and gain a great awareness of his surroundings . He could also use a power known as Force Alter , which meant he could change the nature and distribution of the Force around him . Other abilities he utilized were Control and Force Mind . Odan - Urr communicated with other beings through the Force , using telepathy . He could communicate through these means to other sentients up to five hundred meters away , though that power could not be used to access others ' thoughts but only for communication . However , he also had a great knowledge of spoken languages — he could speak the Draethos , Sith , and Tchuukthese languages , as well as Galactic Basic Standard . Behind the scenes . Odan - Urr was created by " Star Wars " authors Kevin J . Anderson and Tom Veitch and artist Christian Gossett for the sub - series " " , part of the comic series known as " " . He later appeared in other sub - series of the comic , including " " and the two prequel series , " " and " " . He was drawn by either Dario Carrasco , Jr . or Christian Gossett in each of his appearances , with several other artists acting as inkers . His backstory was later expanded upon in the " Power of the Jedi Sourcebook " , written by several authors , with additional art by Jeffery Carlisle . Information on his teachings about the Jedi Code came from the " Star Wars Roleplaying Game Revised Core Rulebook " , " The Official Star Wars Fact File " , " Star Wars Gamer 1 " , and the " Power of the Jedi Sourcebook " , while his founding of the Great Jedi Library was documented in the " Power of the Jedi Sourcebook " and " Geonosis and the Outer Rim Worlds " . His name was misspelled as Odan Urr in the 2012 reference guide " " .