The Uncanny X-Men #520

Synopsis

Wolverine, Psylocke and Colossus track a Predator X to New York but find that Fantomex has already taken care of the monster. The team then begins to track the Predator back to its source. On Magneto's orders, Namor and the Atlanteans finish a pillar to support Utopia and keep it from sinking into the ocean. Because he didn't get proper authorization for the project, however, Cyclops upbraids Magneto for his actions, causing Maggie to feel like he needs to make a drastic move to prove his commitment to the X-Men.