Ultimate X-Men, Volume 6: Return of the King
Magneto, the X-Men's deadliest villain, returns. They've faced the Weapon X program, Proteus and even the superhuman strikeforce known as The Ultimates. Now, still licking their wounds from their prior battles, can Xavier's mutant team possibly survive the return of their most powerful foe?
Collects Ultimate X-Men #26-33.