Duel at the Pool of Knowledge In 44 ABY , a duel took place at the Pool of Knowledge , a Force nexus on Abeloth ' s planet . After they fought and apparently killed the dark side entity Abeloth , the Sith Sarasu Taalon , Gavar Khai , and Vestara Khai , along with their Jedi allies Luke and Ben Skywalker , discovered that Abeloth had actually survived . In the ensuing search for her , they were led by the Meditation Sphere Ship to the Pool of Knowledge . There , Ben glimpsed the Sith homeworld , and Gavar , suspecting betrayal , moved to attack . Luke Force - pushed Gavar as Taalon glimpsed a Jedi queen on a throne in the Pool and , fearing that she would prevent the Sith ' s rise to power , dove in . Gavar fired Force lightning at Luke , but Ben drove him back with blasterfire before Vestara engaged the younger Jedi in combat . Luke attacked Taalon and Vestara after Taalon reemerged from the Pool , and Gavar threw his parang at Ben , using the Force to guide the blade in between the Jedi ' s ribs . Gavar then moved to attack Luke , but the Jedi threw him into Taalon and Vestara , and cut off Gavar ' s weapon - arm . After being repelled with Force lightning , Luke fled the grotto with Ben and collapsed the entrance behind them . The Sith then beat Vestara and sent her to the Jedi — making it appear as though she had fled their punishment — to find out more about the Jedi queen . Meanwhile , Taalon began to transform into the same type of being as Abeloth , and the Jedi tracked Abeloth to the moon Pydyr , where the Sith again joined them in confronting her . Prelude . In 44 ABY , Jedi Grand Master Luke Skywalker and his son , Ben Skywalker , embarked on a mission with the Lost Tribe of Sith to confront Abeloth , a dark side entity who had been causing a Force psychosis among the Knights of the Jedi Order . Although the Sith betrayed the Jedi and attempted to capture Abeloth , Luke defeated and apparently killed her . The Sith and Jedi repaired their alliance in order to investigate further into Abeloth ' s nature , under the condition that only High Lord Sarasu Taalon , Sith Saber Gavar Khai , and Khai ' s daughter , apprentice Vestara Khai , remained on Abeloth ' s planet with the Skywalkers . The allies soon discovered that Abeloth had actually survived and began to hunt for her once more . The Sith Meditation Sphere Ship — which had originally been called to the planet by Abeloth herself , although the Sith claimed responsibility for the act — suggested that they look for her at the Pool of Knowledge , a Force nexus that Luke had seen while beyond shadows at a nearby space station . Ship flew them to a location near the Pool and left them to find it themselves . The allies broke up into two groups to search , and Vestara and Ben found the Pool housed in a grotto . Ben realized that Ship had been trying to pit the Jedi and Sith against each other , and he attempted to convince Vestara to leave the grotto , but she had already called the other Sith through the Force . The duel . In the Pool , Ben saw an image of Abeloth running toward the allies ' vessels , and he realized that she had used Ship to distract them so that she could escape . Ben insisted that they leave quickly , but Gavar wanted to wait until they were certain . When Vestara and Ben again looked into the Pool , it morphed to show the Tribe ' s homeworld , Kesh , and its capital city , Tahv . Suspecting that the Jedi were trying to betray the Sith and learn of their homeworld , Gavar used the Force to disperse the image and began to threaten Ben . Luke quickly cut him off and Force - pushed the Sith Saber away . Taalon , however , was unconcerned with the outbreak of violence ; as he looked into the Pool he saw the Throne of Balance , on which was seated a Jedi queen . He feared the queen might prevent the Sith Tribe ' s planned takeover of the galaxy and thus demanded to know who she was . The Skywalkers recognized the queen as their own relative , Allana Solo , and chose that moment to attack , knowing that a fight was going to break out regardless . Luke activated his lightsaber , while Ben did the same and turned quickly to push past Vestara and attack Taalon . Vestara was shocked at his sudden attack on her and neglected for a moment to counter . Meanwhile , Gavar threw a shikkar — a glass dagger — at Luke , but the Grand Master dodged the throw and the blade smashed against the stone floor . Ben was able to bypass Vestara , but Taalon had already dived into the Pool . Vestara moved to attack Ben , but he briefly incapacitated her with a kick to her shoulder , which had been injured during the previous fight with Abeloth . Ben prepared to dive in after Taalon , but Luke warned his son off and Force - pushed him away from the Pool . Gavar then blasted Luke with Force lightning , and Ben retaliated with three shots at the Sith ; the bolts were absorbed by Gavar ' s armor , but they knocked him back against the wall . Vestara returned to the fight and attacked Ben , but he was able to draw an opening with his blaster and knock her away . She collided with Taalon as he jumped out of the Pool , and the infuriated High Lord punched the apprentice in retaliation . Luke quickly attacked Taalon and Vestara , and Ben moved to help , but Gavar threw a parang at the Jedi Knight . Ben sliced the weapon in two , but the Sith Saber used the Force to jam a shard of the blade straight into Ben ' s ribs . Gavar then rushed to help Taalon , countering Ben ' s attempt to shove him away with the Force . Luke , however , grabbed Gavar ' s ankle and slammed him into the other two Sith before he cut off the Sith Saber ' s weapon - arm . The Sith responded with a torrent of Force lightning that drove the Grand Master back into the grotto wall , until Ben intercepted it with his lightsaber . Luke quickly pushed Ben to the exit and fled the grotto , cutting down one of the outer columns , which resulted in the entire collapse of the entryway . Aftermath . The Sith escaped the grotto , and Taalon and Gavar decided to use Vestara as a spy in order to learn as much as possible about the Jedi queen . Taalon beat her and then ordered her to find the Skywalkers and claim that she had been attacked by the two Sith in punishment but had escaped . While Ben recovered from his injuries , the Jedi returned to the beach and found that their ship , the " Jade Shadow " , was gone — Abeloth had already fled in it . Ben went to break into Taalon ' s shuttle , the " Emiax " , but Vestara suddenly arrived on the scene . Taalon and Gavar were not far behind , and Taalon attacked her with Force lightning . Luke laid in hiding and ambushed the Sith with blasterfire , then readied a thermal detonator . After laying down more covering fire , he rushed to Vestara ' s aid . He was not fooled by her ploy but decided to allow her to come anyway . Luke ' s thermal detonator stalled the two Sith and allowed the Jedi to leave with Vestara aboard the " Emiax " . Gavar and Taalon left the planet in Ship , and the High Lord began to transform into the same kind of being as Abeloth due to his swim in the Pool . Meanwhile , Vestara and the Skywalkers tracked Abeloth to the home of the pacifist Force - sensitive Fallanassi on the moon Pydyr , where Vestara sent a message to a Sith post on Boonta . The Sith sent reinforcements , including Taalon and Gavar , and again joined the Jedi in confronting Abeloth . Further research done by the Sith showed that Hapan Queen Mother Tenel Ka Djo had many features in common with the Jedi queen seen on the Throne of Balance . The Sith learned that Djo ' s daughter had died during the Second Galactic Civil War — although that was in fact a lie spread by Djo to protect the identity of Allana Solo , the daughter of Djo and Jedi Knight Jacen Solo — and Gavar , determined to prevent the ascension of the Jedi queen to the throne , decided to plot the assassination of Djo before she could give birth to another child . However , Khai ' s plan was unsuccessful . Behind the scenes . The duel at the Pool of Knowledge was written by author Troy Denning for inclusion in his 2010 novel , " " , the sixth installment in the " " series .