Collects X-Men Noir: Mark of Cain #1-4.
Buried deep in the jungles of Madripoor, under the temple of the Juggernaut, is a jewel sought by many: the Crimson Gem of Cyttorak. But it's a team led by Logan, Cyclops and the Angel that will get to it first! Though once they claim the metaphysical power of the gem, how long will they be able to keep it? And what does the sinister Charles Xavier, leader of the gang of young sociopaths, the X-Men, have up his sleeve now that he's been released from Ryker's with Wanda Magnus by his side?