X-Men: Mutant Massacre Omnibus

The first X-Men crossover event — and still the most brutal! When Sabretooth and the lethal Marauders attack the underground outcasts known as the Morlocks, the X-Men, X-Factor and New Mutants join forces to stop them — with help from Thor, Daredevil and Power Pack! But the cost of victory is very high, and many X-Men come away badly injured. While Shadowcat might be saved with the Fantastic Four’s help, the Angel contemplates a much bleaker fate! Psylocke, Longshot and Dazzler join the undermanned X-Men — just in time to clash with the Avengers — as Marvel’s mutants struggle to recover and rebuild! COLLECTING: Uncanny X-Men (1981) 210-219, X-Men Annual (1970) 11, X-Factor (1986) 9-17, X-Factor Annual (1986) 2, New Mutants (1983) 46, Thor (1966) 373-374, 377-378, Power Pack (1984) 27, Daredevil (1964) 238, Fantastic Four vs. the X-Men (1987) 1-4, X-Men vs. the Avengers (1987) 1-4