Hal Jordan's enemies: Sinestro (Final Part)

Indigo teleported the group to Korugar, so that Sinestro could finally confront the usurper Mongul. Sinestro after some initial difficulty defeated Mongul by overriding his rings, and imprisoned him within the Yellow Central Battery. Sinestro vowed to keep Mongul alive (and torture him), then kill him when the Blackest Night is over.

He also proclaimed himself to be "leading this coalition" against the Black Lanterns. The Sinestro Corps' celebration was cut short when a ship crashlanded nearby, containing Abin and Arin Sur (who were now Black Lanterns). The Black Lanterns attacked, with the corpse of Arin choosing to fight (and emotionally manipulate) Sinestro. At one point, the corpse even altered itself to look more like a living person, and addressed Sinestro by his full name.

Just then, Hal, Abin, and Carol burst through the streets to where the others are; with all four in place, they destroyed Abin and Arin's rings. Afterwards, Hal and Sinestro debated whether to contact the Blue or Red Lanterns, respectively. Then Hal, after asserting himself instead of Sinestro as leader of the coalition, made the decision himself. Sinestro relented, told his Corps that there is a temporary truce with the GLC, and traveled with the others to Odym. After gathering the other Corps leaders, Sinestro and the others followed the Black Lantern battery to Earth, where Nekron had already risen. Under Indigo's direction, they combined their lights, thinking it would destroy the Black Lanterns' source of power, only for it to be strengthened. In an attempt to bolster their ranks, Ganthet duplicated the corps leaders' rings, having them seek out candidates to deputize. Sinestro's ring chose the self-proclaimed master of fear - Johnathan Crane aka The Scarecrow. The Black Lantern Spectre then attacked the group. In order to defeat it, Hal released Parallax from its prison, intending to let it possess him again. Sinestro offered to join with Parallax instead, but was rebuffed.

This concludes the series about Sinestro, one of the most iconic enemies of Hal Jordan and the Green Lantern Corps.