Duel in the Fellowship Plaza In 40 ABY , a meeting between Dark Lady of the Sith Lumiya and her apprentice Jacen Solo was interrupted when the Twi ' lek Dark Jedi Alema Rar caught Jedi Master Tresina Lobi spying on the conversation . Rar ' s subsequent attack on Lobi alerted Lumiya to the presence of both women and , as Jacen fled , Lumiya joined the lightsaber duel that had erupted in the midst of Coruscant ' s Fellowship Plaza . Lobi held her own against the pair of darksider s for a time and severed Lumiya ' s weapon arm , but was unable to maintain a protracted offensive against two opponents . She was crippled by the extensions of Lumiya ' s lightwhip , then killed with a decapitating strike of Rar ' s lightsaber . Prelude . Meeting in the Senate District . As Jacen Solo and Ben Skywalker were talking in Fellowship Plaza , they were being listened to by Lumiya , Jacen ' s Sith Master , Alema , who was spying on Jacen , and Tresina Lobi , a Jedi Master Luke Skywalker sent to watch over Ben . After Jacen and Ben finished talking about Luke Skywalker ' s concerns about his son and a new GAG Star Destroyer , the " Anakin Solo " , Jacen sent him to Galactic Justice Center . As Ben passed Rar , she noticed Tresina eavesdropping on the conversation . Lumiya then left her own hiding place to talk to Jacen about his control over Ben , and the possibility of making him his Sith apprentice . Rar noticed Lobi recording the conversation as Jacen told Lumiya to assassinate a list of Bothans to lure the terrorists into a trap . As Lobi was about to send the recording to Luke , Rar realized that she did not want him to receive the message . She wanted Jacen to become a Sith Lord so that Leia Organa Solo ' s heart would be broken , assuring that The Balance was served . Rar sprang towards Master Lobi and landed on her shoulder blade , crushing it . Rar used the Force to remove Lobi ' s headset and they began fighting . Lumiya noticed the fight and told Jacen to leave for his meeting with Admiral Niathal . At first Lumiya cautiously approached Rar , but the Twi ' lek stated that she was a friend and the two teamed up to fight the Jedi Master . The duel . Lobi used the Force to throw an urn into Rar ' s crippled shoulder before she could redirect it with Force lightning , and knocked her into some shrubs behind her . As Rar rose , she saw Lumiya engaging the Jedi with her lightwhip . As Rar headed towards the fight , Master Lobi backflipped while pulling Rar into the lightwhip ' s strands which cut her thighs and ribs . Tresina landed and sliced off Lumiya ' s cybernetic weapon arm , then aimed for her torso before Rar caught the attack with her own blade . As Lobi attacked the Twi ' lek , Rar Force threw the prosthetic arm towards Lobi ' s head . The arm missed , but gave the Sith Lady time to attack . Lobi pivoted away and kicked Rar in the chest . As she went flying , Lumiya launched another series of attacks which moved her towards Rar . Lobi whirled around and attacked Alema , but stumbled back into Lumiya ' s lightwhip and lost both of her legs . As Tresina screamed in agony , Alema ended her suffering by cutting her head off . Aftermath . After Master Lobi had been struck down , Lumiya still remained suspicious of Rar . She stepped to the other side of the body with her lightwhip still activated . It was then that Rar took the recording device from Lobi ' s body , tossed it to Lumiya , and joined her cause . She continued to fill a role similar to that of a Sith Minion in Lumiya ' s Sith Order . She would go on to fight with Lumiya at the Roqoo Depot and save Darth Caedus ' s life during the Battle of Kashyyyk . A gardener droid found Lobi ' s body , and notified the Coruscant Security Force . Luke and Mara Jade Skywalker would investigate Lobi ' s death , with their investigation leading them and Detectives Tozr and Raatu to the Zorp House apartment tower , and Lumiya ' s apartment .