New X-Men: Childhood's End, Vol. 5: Quest for Magik

The demon lord Belasco has pulled the Xavier Institute into Limbo, but he's not after the X-Men... he's come for the New X-Men. With their leaders cut off, most of the team captured, and a group of students thrown into the demon infested wastelands, all hope seems lost. But the kids aren't alone in Limbo...and things are about to get much, much worse.

Collecting: New X-Men 37-43