X-MEN EPIC COLLECTION: MUTANT GENESISSeries: Comic Type: ONE SHOT The end of an era for the X Men! The original team, now called X Factor, takes center stage when Proteus returns from the grave. But when Apocalypse strikes, infecting Cyclops' son Nathan with a deadly virus, Cyclops must make a bitter sacrifice! And the current X Men return to Earth to find that Professor X's old foe the Shadow King has risen and taken over Muir Island! It will take X Factor and the X Men's combined