Jebble Jebble was a frozen world located in the Ojoster sector of the Outer Rim . A target for ice miners , Jebble served as a resource world for the nearby ecumenopolis of Taris , and fell under threat when the Mandalorian Neo - Crusader hordes began encroaching upon Taris in the early weeks of their war with the Galactic Republic . When the Mandalorians finally struck , they swiftly captured Jebble and turned it into one of their main Outer Rim staging points , the place where the Mandalorians gathered thousands of local recruits for a planned raid on Alderaan . However , that army met with disaster in 3963 BBY : after the Mandalorian scientist Pulsipher brought a mysterious Sith artifact known as the Muur Talisman back to Jebble , the Talisman ' s dark influence turned nearly the entire population of Mandalorians into monstrous , mutated rakghoul beasts . Mandalorian Field Marshal Cassus Fett elected to deal with the problem by obliterating Jebble ' s surface with a massive salvo of nuclear bomb s , wiping out all life on the planet and drastically altering Jebble ' s ecosystem . The only survivor of the blasts was the current holder of the Talisman , Jedi Shadow Celeste Morne , safely ensconced in the life - preserving stasis chamber called Dreypa ' s Oubliette — by the time Jebble had regained its icy landscape , the capsule was unearthed and the " Jebble Box " became an object of intense intrigue around the galaxy for years . Description . Located along the Mandalorian Road in the Outer Rim ' s Ojoster sector , and in the system of the same name , the planet Jebble was a frozen world that had at least one moon . Jebble was almost completely covered in ice , which formed into massive peaks interspersed into wide , frozen plains . As such , Jebble ' s climate was extremely cold , although the planet underwent a rapid environmental transformation after the planet ' s bombing by the Mandalorian strategist Cassus Fett in 3963 BBY . Fett ' s bombs flooded much of the world , and while the planet was not devoid of ice , only some peaks remained that were tall enough to break through the planet - wide sea . However , the world eventually regained its original frozen terrain within several millennia of the bombings . History . Frontier target . Along with the planets of Tarnith , Vanquo and Suurja , Jebble served as a resource world for the nearby ecumenopolis of Taris , a heavily populated planet which was a hub for business in that area of the Outer Rim . That proximity began to threaten Jebble in 3964 BBY , when it found itself on the front lines of the nascent war between the Galactic Republic and the Mandalorian Neo - Crusaders . After a long campaign conquering unaligned worlds on the Outer Rim , the Mandalorians began encroaching on Republic territory , specifically threatening Taris , which by then had become a full member of the Republic , and its resource worlds , including Jebble . In response , the Republic Navy organized forces into a security cordon known as the Jebble - Vanquo - Tarnith line — Jebble was one of the eponymous worlds on the line , which saw heavy fighting in the early stages of the war . The constant battles caused many of Jebble ' s inhabitants to flee to other nearby planets , including the mining world of Vanquo . The stalemate was broken when a massacre on Taris caused the breakdown of social order and the removal of the Jedi presence on the planet , which Mandalore the Ultimate took as a signal to finally attack the planet in force . The Jebble - Vanquo - Tarnith line quickly proved indefensible , and the Mandalorians laid siege to and conquered Taris without facing serious Republic opposition in 3963 BBY . Soon afterward , the Mandalorians set their sights on Jebble , which they conquered as well and turned into one of their centers of power in that sector of the Outer Rim . The Mandalorians repurposed Jebble ' s Ice Citadel as a war forge and a laboratory for Pulsipher , a top Mandalorian scientist who was studying the source of the powers of the Jedi . In addition to being the site of Mandalorian ice mining activity , Jebble soon took a greater importance to the Neo - Crusader war effort as a staging area for thousands of Mandalorian recruits who were being organized and prepared for a planned raid on the Republic pillar of Alderaan . However , events on Jebble took a major turn when Pulsipher returned from an expedition on Mandalorian - held Taris with an ancient Sith artifact known as the Muur Talisman in tow . Pulsipher was ignorant of the Muur Talisman ' s true power : created by the ancient Sith Lord Karness Muur to bring nearby beings into his thrall , the Talisman was the source of the affliction known as the rakghoul plague , which turned those infected into mindless , mutated beasts called rakghoul s . When the Talisman bonded with Pulsipher upon his return to Jebble , it turned the warriors who came into contact with him into rakghouls under his command — and under the influence of the trinket ' s power , Pulsipher began to envision a future where he used the Talisman to unify all living beings under the Mandalorian banner . Graveyard of the damned . At Pulsipher ' s beckoning , the rakghouls tore through the thousands of Mandalorian warriors and recruits gathered on Jebble , quickly killing or infecting nearly everyone in the vicinity of the Ice Citadel with the mutating plague . Two of the only survivors were a pair of Jedi , Celeste Morne and Zayne Carrick , who had stowed away on Pulsipher ' s shuttle from Taris . Fearing that the outbreak could cause the disease to go galactic , Carrick used the complex ' s communications dome to warn chief Mandalorian strategist Cassus Fett to keep his forces away from the world , before being captured and led back to Pulsipher . When Morne attempted to save him , the Talisman moved with a mind of its own and abandoned Pulsipher — who was subsequently ripped to shreds by the beasts he once commanded — and bonded with her instead . Although Morne was nearly seduced by the Talisman ' s power , she soon realized the tremendous potential for destruction it contained , and willingly placed herself inside the stasis casket known as Dreypa ' s Oubliette which Pulsipher had kept in his laboratory . The oubliette contained the power of the Talisman , briefly causing the rakghouls to revert into mindless , rampaging beasts — however , Carrick and his Snivvian friend Marn Hierogryph narrowly managed to escape death when several of their friends arrived in time to spirit them away on the starship " Moomo Williwaw " . Almost immediately after Carrick and the " Williwaw " made it into orbit , Cassus Fett arrived with a Mandalorian armada . Surveying the situation , Fett found what Carrick said about Jebble ' s rakghoul infestation to be true , and without delay called down a massive nuclear bomb ardment that destroyed all life on the planet and drastically changed the world ' s environment . After the bombs fell , Jebble was no longer covered in ice : much of the world was flooded , with some remaining icy crags poking above a steaming radioactive sea . However , one being survived the devastation : Celeste Morne , her oubliette remaining intact beneath the waves . Although Jebble was completely devastated by the attack , it still received some visitors over the coming years . Several months after the bombardment , Carrick and Hierogryph tricked the Chevin criminal Nunk Plaarvin into going to Jebble alone , believing that he had an important meeting with the pirate group known as the Raff Syndicate — although Jebble ' s nuclear devastation was already common knowledge , the Chevin was ignorant of the planet ' s fate . By approximately 1419 BBY , Jebble had returned to its old , icy terrain , and became a target for ice miners who discovered Dreypa ' s Oubliette under a kilometer of ice . Although the group of miners couldn ' t open it or discern its contents , they figured something valuable must be inside , which led one miner to kill the others and take the casket offworld for himself . The Oubliette , popularly known as the " Jebble Box , " changed hands numerous times over the coming centuries , and blood was spilt more than once for possession of the mysterious object . Inhabitants . Despite its frozen condition , Jebble had a native population that included Humans , some of whom fled the world during the fighting in the early stages of the Mandalorian Wars . After the planet ' s capture by the Mandalorians , Jebble became home for hundreds of Mandalorian warriors and scientists , who used the planet as a staging area for recruits from the Outer Rim . Almost all the Mandalorians on the world were transformed into rakghouls after the Muur Talisman ' s introduction to Jebble in 3963 BBY , before Cassus Fett ' s nuclear bombardment killed them and any remaining life on the planet Jebble . The only survivor of the nuclear attack was Celeste Morne , safely ensconced in Dreypa ' s Oubliette , who remained in stasis on Jebble for over 2500 years until the planet had become habitable again and she was discovered . Locations . One of the defining structures on Jebble was known as the Ice Citadel , a fortress carved into one of Jebble ' s icy peaks that became the center of Mandalorian power on Jebble after the Neo - Crusaders conquered the world . The Citadel was entered from numerous igloo - like structures on the icy ground below , and overlooked large ice fields that served as a training ground for Mandalorian recruits . At the top of the Citadel was Pulsipher ' s laboratory , where the Neo - Crusader scientist researched many Force artifacts , and from where the rakghoul infestation on Jebble originated . After the Mandalorian seizure of the planet , the Citadel also became host to a large war forge , where armor to fit the various species of the thousands of new recruits to the Neo - Crusader killing force was made . The Ice Citadel was surrounded by a series of ice mines that were in use by the Mandalorians and remained intact for several centuries after the Mandalorian bombardment , and eventually were put back into use circa 1419 BBY . Behind the scenes . The planet Jebble first appeared in " " , an issue of the " " comic series written by John Jackson Miller and released in 2008 . Jebble was the primary setting for most of the " " arc , and later reappeared in a flashback in the later issue " " , a continuation of the " " story that crossed all of Dark Horse Comics ' " Star Wars " comic series at the time . In its appearances , Jebble was illustrated by artists Scott Hepburn and Doug Wheatley .