What happens when the skeletons in your closet finally break down the door and come looking for you? The X-Men are about to find out! The mutant community is in turmoil, and the X-Men are bearing the brunt of this New World Order. Amid the chaos, a new enemy awakens, one whose very existence will haunt the founding members of the X-Men like nothing has before. Who is this new threat? How is he tied to Professor X's darkest secret? Cyclops, Wolverine and the others must find out soon, before they and those closest to them go mad! Collects X-Men: Deadly Genesis #1-6.