Chris Claremont, Dave Cockrum and John Byrne took a little reprint series called X-MEN and turned it into the all-new, all-different titan that conquered comicdom. Now, you can experience the thrills and excitement of their classic tales from "The Dark Phoenix Saga" to "Days of Future Past" -- and so much more -- in this enormous Omnibus! Including the debuts of X-universe mainstays Emma Frost and Kitty Pryde, the threat of Mystique's Brotherhood...