During the time of the Galactic Civil War, Lina Graf, a Commander in the Rebel Alliance, undertook a quest. Her objective was to reach Fortress Vader on the fiery world of Mustafar and extract Lieutenant Thom Hudd, who was being kept as a prisoner within the fortress walls by Vaneé. To get inside, Lina disguised herself as the Inquisitor known as the Fourth Sister. Following a short confrontation with Vaneé, she successfully freed Hudd and they fled the planet.