XMen E is for Extinction Author:Grant Morrison, Frank Quitely, Ethan Van Sciver Reprints New X-Men issues 114 - 117. Mutation is normally the key to evolution but the threat is now so great, that mankind must fight the mutant menace or face extinction. A complete review of the most successful team, The Mutant X-Men, is told here told by author Grant Morrison, artists Frank Quitely & Ethan Van Scriver.