Starting in December, two of Marvel's core X-Men titles are crossing over for a story that pits two mutant teams against each other as they both attempt to invade the Greymalkin Prison, built in the former X-Mansion.
The crossover, titled 'Raid on Graymalkin,' runs from December through January in X-Men #8 and #9 and Uncanny X-Men #7 and #8 - and the two teams will find themselves at ideological odds in how to handle taking down Graymalkin Prison, and even what's to be done about its most famous inhabitant, Charles Xavier.
