Mutant Massacre

Main character(s)X-Men
X-Factor
Thor
New Mutants
Power Pack
Marauders
HelaCreative teamWriter(s)Chris Claremont
Louise Simonson
Walter SimonsonPenciller(s)John Romita Jr.
Walter Simonson
Sal BuscemaInker(s)Dan Green
Bob Wiacek
Sal BuscemaLetterer(s)Tom Orzechowski
Joe Rosen
John E. Workman Jr.Colorist(s)Glynis Oliver

Mutant Massacre ISBN

"Mutant Massacre" was a 1986 Marvel Comicscrossover storyline. It primarily involved the superhero teams the X-Men and X-Factor. The solo hero Thor, the New Mutants, Power Pack, and Daredevil crossed over for an issue each in their own comic books.

The crossover was a surprise success, yielding sales boosts to the mutant-based books and prompting Marvel Comics' long-running policy of holding such mutant crossovers annually.

The story depicts a massacre of the Morlocks through attacks by the Marauders. The X-Men, X-Factor, and Power Pack attempt to intervene, with the X-Men having three of their members severely injured in the conflict.