Issue: #13
The X-Men join THE HELLFIRE CLUB?!To investigate a string of violent attacks perpetrated by mutants, the Uncanny X-Men ally themselves with their (former?) foes.But what they're about to uncover may be too much for even their combined might to handle...
Creators: Alan Fine, Axel Alonso, Dan Buckley, Joe Quesada, Mark Paniccia, Joe Caramagna, Nolan Woodard, Daniel Ketchum, Greg Land, Jay Leisten, Chris Robinson, David Curiel, Cullen Bunn
Characters: Magneto, Angel, Betsy Braddock, Sabretooth, Mystique, Sebastian Shaw, M, Bu Jun, Exodus, Black Tom Cassidy, Briar Raleigh