The entire incendiary epic in one red-hot hardcover! When mad geneticist Mister Sinister and the demonic N'astirh set their respective master plans in motion, an Inferno engulfs the Marvel Universe! The flames are fanned as Sinister's Marauders attack the X-Men, while a demonic horde preys upon the helpless, horrified populace of New York - and Illyana Rasputin battles for her soul! But it is Cyclops' estranged wife Madelyne Pryor, now the Goblin Queen, who might turn the Earth into a hellish wasteland! The X-Men, X-Factor and New Mutants face their most harrowing ordeal - and the fires are fought by Spider-Man, Daredevil, the Avengers and more! Collecting X-FACTOR (1986) #33-40, X-TERMINATORS #1-4, UNCANNY X-MEN (1981) #239-243, NEW MUTANTS (1983) #71-73, POWER PACK (1984) #40 and #42-44, AVENGERS (1963) #298-300, FANTASTIC FOUR (1961) #322-324, AMAZING SPIDER-MAN (1963) #311-313, SPECTACULAR SPIDER-MAN (1976) #146-148, WEB OF SPIDER-MAN (1985) #47-48, DAREDEVIL (1964) #262-263 and #265, EXCALIBUR (1988) #6-7, MUTANT MISADVENTURES OF CLOAK AND DAGGER #4, and material from X-FACTOR ANNUAL #4.