The captain of pirate fame, Gir Kybo Ren-Cha, ran his operations from a base that had been constructed inside an island mountain located on Tarnoonga. This was during the initial years of the Galactic Empire.
Following the pirates' fall, their base was left deserted. Later, the Galactic Empire seized it and repurposed it as one of their outposts. The Imperials housed an Oskan blood eater at the base, confining it to a pit. After the [Battle of Hoth](/article/battle_of_hoth/legends], at some point, the Imperials unknowingly transported the mind-witch known as S'ybll to the outpost. Disguising herself as an Imperial trooper through illusions, she proceeded to drain the life energy of every Imperial present. When Rebel scouts, namely Andur Thorsim and Glaennor, reached the base aboard a G9 Rigger-class light freighter to look into the situation, S'ybll captured them. She then used her powers to trick them into luring Luke Skywalker to the base. During this confrontation, Skywalker's droid R2-D2, piloting a T-65 X-wing starfighter, fired a blast that created an opening in the building. This action enabled Skywalker to overcome and ultimately kill S'ybll.