Uncanny X-Men #7
'RAID ON GRAYMALKIN' PART TWO! THE GRAYMALKIN RAID CONTINUES as two conflicting teams of X-Men come to a crossroads at Graymalkin Prison, formerly Xavier's Institute! As if the Perimeter protocols and the prison's mutant TRUSTEES weren't enough, team leaders ROGUE and CYCLOPS find themselves at war over the uncertain legacy of Charles Xavier! RATED T+