This massive, slipcased edition collects GREEN LANTERN #21-25, GREEN LANTERN CORPS #14-19 and GREEN LANTERN: SINESTRO CORPS SPECIAL #1! Sinestro - Hal Jordan's former mentor and archnemesis - has gathered an army of soldiers fueled by the fear they instill in others, including Arkillo, Karu-Sil, the Cyborg- Superman and more of the most terrifying villains the universe has ever seen!.