X-Factor

As one of the greatest X-Men of all makes her triumphant return, one of mutantkind's deadliest threats debuts! When Jean Grey is found alive -- with a little help from the Avengers and the Fantastic Four -- she reunites with the rest of Xavier's original class to form X-Factor! But as Cyclops, Marvel Girl, Beast, Angel and Iceman face new enemies Tower and Frenzy, little do they know the villains are part of an Alliance of Evil led by ... Apocalypse! Collecting: AVENGERS (1963) #263; FANTASTIC FOUR (1961) #286; X-FACTOR (1986) #1-9; X-FACTOR ANNUAL #1; Material from CLASSIC X-MEN #8, 43.