Sinestro--Hal Jordan's former mentor and ongtime archnemesis--has gathered an army of soldiers fueled by the fear they instill in others, consisting of Arkillo, Karu-Sil, the Cyborg Superman and hundreds more of the most terrifying villains the universe has ever seen! Former Green Lantern Kyle Rayner has been possessed by the entity known as Parallax and now assists the Sinestro Corps in cutting a swath of evil across the universe. Trapped in the depths of the Sinestro Corps' Citadel and face to face with the Guardian of Sinestro's army of fear, Hal Jordan must find the will power to battle these terrible foes. And as one of the Book of Oa's prophecies comes true, the Green Lantern Corps makes a last stand that reveals the reincarnation of one of their fold!

This volume collects Green Lantern #18-25, Green Lantern Corps #14-18, Green Lantern Sinestro Corps Special #1, Tales of the Sinestro Corps: Superman Prime #1 and Green Lantern/Sinestro Corps: Secret Files #1