The Uncanny X-Men
Maddie contacts N'astirh and they search for Nathan Christopher at Mr. Sinister's orphanage as New York begins transforming. The X-Men track down the Marauders in the Morlock tunnels for payback.
Collects X-Factor #27-50, X-Terminators #1-4, and crossover issues. Includes Inferno and the original X-Factor's climactic battles with Apocalypse.
Collects X-Terminators #1-4, X-Factor #33-36, The Uncanny X-Men #239-240, The New Mutants #71-72. Inferno begins — X-Factor, New Mutants, and X-Terminators face the demon invasion of NYC.
Collects X-Terminators #1-4 and material from 3 other series. The Inferno crossover - Madelyne Pryor becomes the Goblin Queen, demons invade.
Collects X-Factor #33-40, Uncanny X-Men #239-243, New Mutants #71-73, and Excalibur #6-7. The Inferno crossover -- Madelyne Pryor becomes the Goblin Queen as demons invade New York.
Collects X-Factor #33-40, Uncanny X-Men #239-243, New Mutants #71-73, X-Terminators #1-4, and more. The full Inferno crossover -- demons overtake Manhattan.
Collects The Uncanny X-Men #239-243; X-Factor #36-39; The New Mutants #71-73.