The FF Explores The Mysterious N-Zone!
Young Reed Richards wants to duplicate the accident that changed the four into the bizarre beings they've become and thereby reverse the process. But to do so requires a trip into the N-Zone, the universe under ours... a vast, empty expanse. But if it's empty, what are those lights in the distance?
In a dying universe, only the smartest, strongest, and meanest survive. When the Fantastic Four come face-to-face with with the remaining inhabitants of the N-Zone, will they make it through meeting Annihilus and his fellow survivors?
Collecting Ultimate Fantastic Four #13-18, written by Warren Ellis and illustrated by Adam Kubert.