X-Men. Mutant Massacre

YA. Graphic Novel. The Marauders professional mutant assassins, employed by a mysterious evil, with the job of wiping out the entire Morlock community living beneath the streets of Manhattan. And the only hope of salvation the Morlocks have rests in the hands of the X-Men! But can they stop this deadly onslaught? And what do they stand to lose if they should succeed? Collects Uncanny X-Men 210-213, X-Factor 9-11, New Mutants 46, Thor 373-374, Power Pack 27, and Daredevil 238.