Marvel
Collects X-Man #53-54, X-Men: Age Of Apocalypse #1-6, Exiles (Marvel) #60-61, What If…? (Vol. 2) #77 and #81, What If…? X-Men: Age Of Apocalypse and material from X-Men: Age Of Apocalypse, Hulk: Broken Worlds #2, X-Men Prime, X-Men: Endangered Species, Exiles: Days Of Then And Now, and Official Handbook Of The Marvel Universe: X-Men—Age Of Apocalypse