Later, Sinestro feels he is in jeopardy now that the Green Lantern Corps have returned, including the fact that his daughter, Soranik, has rejected his Corps. He increases his Parallax powers to one thousand percent when Hal returns and invades Warworld. Sinestro orders his Corps to stop intervening in his personal fight against Hal and confronts his former pupil face to face. During the battle, Sinestro discovers too late that his powers have decreased due to Soranik rescuing the people that were used to power the Fear Engine. Hal then uses his energies as a living construct to incinerate the Fear Warlord and destroys Warworld, apparently sacrificing himself and killing Sinestro in the process.