Missing for months, Professor X seemingly returns - and debuts an All-Newer, All-Different-er team of X-Men! But when this new group kidnaps Shadowcat, something seems off to the real X-Men. When the truth is revealed, it'll spark a globetrotting hunt for Charles Xavier! The search will lead to a showdown with the re-formed - but far from reformed - Brotherhood of Evil Mutants... and reveal the menace of Cerebro? But for the Children of the Atom to survive, must Professor X die? Collecting: Uncanny X-Men (1981) 360-365; X-Men (1991) 80-84, 1/2; X-Men Unlimited (1993) 22