When he arrives, he first encounters Carol Ferris. While Sinestro holds no ill will towards Carol and only wishes to free his Corpswomen from Zamaron, he warns Carol that he will hurt her if she stands in his way. Carol then encases Sinestro in a crystal structure, forcing him to relive the death of his love, Arin Sur (Abin Sur's sister). Angered by this, Sinestro bursts free, staggering Carol enough for his Corpsmen to seize her. However, before he can capitalize on the advantage, the Black Lanterns invade, led by Amon Sur, shocking both Sinestro and Carol. Hal Jordan and Indigo-1 then appear, initially fighting off some of the Black Lanterns. Indigo-1 teleports the group to Korugar so that Sinestro may finally confront Mongul. Sinestro defeats Mongul by overriding his rings, then imprisons him within the Yellow Central Battery. Sinestro vows to keep Mongul alive (and torture him), then kill him when the Blackest Night is over. He also proclaims himself to be "leading this coalition" against the Black Lanterns. The Sinestro Corps' celebration is cut short when a ship crash lands nearby, containing Black Lanterns Abin and Arin Sur.