Collects Uncanny X-Men#210-212, X-Factor#9-11, New Mutants#46, Power Pack#27, and Thor#373-374. Written by Chris Claremont, and Walt & Louise Simonson. Art by Walt Simonson, John Romita, Jr., Sal Buscema, Jackson Guice, Rick Leonardi, Alan Davis, John Bogdanove, Joe Rubenstein, Bob Wiacek, Paul Neary, Dan Green, Al Willamson, and Al Gordon. What is Gambit's connection to the slaughter of the Morlocks? That's what readers will find out in Uncanny X-Men#350. And here's where readers can re-live one of the darkest chapters in the history of the X-Men.