Green Lantern Corps, Volume 7: Revolt of the Alpha-Lanterns

In the wake of Blackest Night and the dawn of Brightest Day, the Alpha Lanterns seek to force Green Lanterns John Stewart, Kyle Rayner and former Guardian Ganthet into their ranks. Will they be able to resist, stop the revolt of the Alpha Lanterns led by their evil mastermind, Cyborg Superman, and discover his sinister new secret agenda? Collecting: Green Lantern Corps 21-22, 48-52