Cin Tykan Cin Tykan was a male Kaleesh Jedi Master and the best survival expert of the Jedi Order ; his skills allowed him to thrive in the deadliest and most dangerous environments . Master Tykan had put his unique talents to use throughout the galaxy , exploring and studying dozens of ravaged worlds and finding ways to reverse the catastrophic damage to their ecosystems . Biography . A Kaleesh Jedi Master trained in the ways of the Force , Cin Tykan traveled the galaxy putting his survival skills to the test . Like many of his species , Tykan hid his face with a mask made from a mumuu skull . Devoted to his work , Master Tykan waited many years before taking on a Padawan ; unwilling to pass on his knowledge to one who didn ' t share his deep - felt compassion for nature and life in all its forms . He finally found a worthy student in the eager and earnest Aris Vauranelle during the Cold War . Together , they began tackling one of the galaxy ’ s greatest environmental challenges : the restoration of Taris . During his training of Vauranelle on Taris , Tykan became infected by a terrible illness caused by Lord Vivicar ' s plague . The illness drove him insane as his mind came under the sway of the dark side , leading Tykan to commit acts of sabotage against Republic restoration efforts . While Captain Nelex and Padawan Vauranelle refused to believe that Tykan was sick , a young Jedi Knight arrived from Coruscant to hunt down Tykan and cure him if possible . Tracking him and a team of researchers to the ruins of the ancient Jedi academy once used by the First WatchCircle during the Mandalorian Wars , the Jedi Consular found Tykan ' s research team in peril . After discovering precious Jedi medical holocrons , Tykan ' s psychosis set in and he had lured his colleagues into the ruins and set a fire in a pocket of gas leechate . When the Consular arrived , Tykan had fled , but the holocrons and workers were safely retrieved and revealed Tykan ' s next target : the Junction . Traveling to the Junction , a gas purification facility nearby , the Jedi Knight found Tykan but was unable to prevent him from severing the facility ' s main gas line . Forcing an evacuation , the Knight defended the work crews from rakghouls allowed in by Tykan while they resealed the damaged equipment . Having distracted his pursuer , Tykan circled round back to the base of the Republic Expeditionary Forces using rakghoul tunnels and launched a surprise attack on Captain Nelex ' s forces . Abducting his Padawan , Tykan forced his way through the base and holed himself up with one of the city ' s last working super - reactor . Planning to destroy the reactor and release its toxic sludge into the fragile ecosystem , Tykan was able to convince his Padawan of the Republic ' s involvement in corrupting the planet . When the Jedi Knight tracked him down , Vauranelle stood to defend him until the Knight convinced her of Master Tykan ' s illness . Furious at the perceived betrayal , Tykan lashed out at his Padawan but was quickly subdued by the Jedi Knight . After the Knight conducted a shielding ritual to release him from Vivivar ' s thrall , Tykan vowed to reveal his shame to the Republic and seek guidance from the Jedi High Council back on Tython . Departing Taris with Vauranelle , the pair made for the Deep Core homeworld of their Order for reflection and rehabilitation .