X-Men: Mutant Massacre

That's exactly what the Mutant Massacre is. It was the first X-Men crossover, and it crossed over to Uncanny X-Men #210-213, X-Factor #9-11, Thor #373-374, New Mutants #46, & Power Pack #27. A group of mutant assassins called the Marauders have been sent to the Morlock tunnels for one thing & one thing only: to kill the Morlocks. During the Mutant Massacre, we witness alot of events unfold, from Wolverine battling Sabretooth, to Angel having his wings destroyed by the Marauders, as well as Psylocke joining the X-Men. If your looking for classic X-Men storyline, I highly recommend picking up the Mutant Massacre.

If you want complete stories, then you are not going to do much better. If you want to see the X-Men in a state of war, then this is a far better storyline than the X-Tinction Agenda. Lots of mutants, lots of fights, and lots of poignant moments, from the injuries that led to the creation of Excalibur and Archangel, to Psylocke joining the X-men, to the death of so many Morlocks. The inclusion of Thor and Power Pack was well-handled. This novel can not be more highly recommended.

Excellant graphic novel. One of the better X-men novels. Allstar cast includes X-men, X-factor, New Mutants, Power Pack, Morlocks, Marauders, Apocalypse and the beginings of his four horseman, and the Mighty Thor. Only dissapointment was not seeing Thor pummel the overrated sabertooth like the insignificant flea that he is, who comments that he would have torn Thor to shreads. All in all I highly reccomend this.

A good story with good art, featuring the first appearence of the Marauders, the foundation for Excalibur, the loss of Angel's wings, and the deaths of most of the Morlocks! There are two Wolvie vs. Sabretooth battles and some sub plots featuring X-Factor, Power Pack, Thor, and the New Mutants.

This is a complete collection of what is probably the first crossover storyline ever in the X-Men titles. Claremont wrote this one long before Marvel's current economic straits, when good writing came first and foremost. Includes the hard-to-find Thor and Power Pack issues as well.