Collects Uncanny X-Men #239-243, X-Factor #33-40, X-Terminators #1-4, New Mutants #71-73 and X-Factor Annual 4. Mr. Sinister''s Marauders attack the X-Men while a horde of N''astirh''s demons prey upon the helpless, horrified populace of New York City. And when Madelyne Pryor, wife of Cyclops, becomes the Goblin Queen... all Hell breaks loose.