The death of Jean Grey re-defined the X-Men, but her resurrection was even more traumatic! Recovered by the Avengers and revived by the Fantastic Four, Jean's return regrouped her fellow founders into a supposed mutant-hunting unit that ferreted out some of mutantdom's rising stars - including the devastating debut of the ancient evil everyone identifies as Apocalypse!
With Mystique, the Morlocks and the Master Mold! Featuring tie-ins to the infamous Mutant Massacre! Guest-starring Thor and Power Pack! Collects X-Factor #1-16 and Annual #1, Avengers #262, Fantastic Four #286, Thor #373-374, and Power Pack #27.
Written by Bob Layton, Jackson Guice, Roger Stern, Louise Simonson, Walt Simonson and John Byrne, pencilled by Guice, Layton, Byrne, Walter Simonson, John Bogdanove, John Buscema, Sal Buscema, Keith Pollard, Terry Showmaker and Marc Silvestri, cover by Guice.
Marvel, paperback, 568 pages, published June 2011 (new edition)