- Pencils
- Bret Blevins (pencils); John Romita Jr. (layouts)
- Inks
- Al Williamson
- Colors
- Glynis Oliver
- Letters
- typeset
- Genre
- superhero
- Characters
- Marauders [Scalphunter; Riptide; Arclight; Scrambler; Harpoon; Vertigo]
- Reprints
From the splash page
- Pencils
- Arthur Adams
- Inks
- Barry Windsor-Smith
- Colors
- ?
- Genre
- superhero
- Characters
- Storm; Dazzler [Malice]
- Reprints
- Script
- ?
- Pencils
- Alan Davis
- Inks
- Paul Neary
- Colors
- Glynis Oliver
- Letters
- typeset
- Genre
- superhero
Illo from page 20 of Uncanny X-Men #213
- Pencils
- John Romita Jr. (signed)
- Inks
- Bob Wiacek (signed)
- Colors
- ?
- Letters
- ?
- Genre
- superhero
- Characters
- Storm; Wolverine; Colossus; Rogue; Nightcrawler; Shadowcat [Kitty Pryde]
- Reprints
The Official Marvel Index to the X-Men (Ward, 1994) attributed lettering to Dan Crespi (GCD listed a similar credit for a time), but Dan Crespi died about a year before this issue was printed. Any similarity to Crespi’s style may be the result of Marvel’s use of lettering transfers made from Crespi’s hand lettering, as described in The Official Marvel Index to the X-Men (Olshevsky, 1987).
- Script
- Chris Claremont
- Pencils
- Dan Green (finished art); John Romita Jr. (breakdowns)
- Inks
- Dan Green
- Colors
- Glynis Oliver
- Letters
- Tom Orzechowski
- Genre
- superhero
- Characters
- X-Men [Magneto; Storm; Wolverine; Colossus; Rogue; Nightcrawler; Shadowcat [Kitty Pryde]]; Alison Blaire [Dazzler]; Tommy (dies); Richard Salmons (dies); Illyana Rasputin [Magik]; Lockheed; X-Factor [Cyclops; Jean Grey; Iceman; Beast; Angel]; Malice; Marauders (introduction, in shadow) [Scalphunter; Harpoon; Riptide; Scrambler; Arclight; Vertigo]; Hellfire Club [Sebastian Shaw; Selene; White Queen [Emma Frost]]
- Synopsis
- The Marauders begin their Mutant Massacre. Malice possesses Dazzler. Nightcrawler is beaten by a mob. Magneto is offered a seat in the Hellfire Club's Inner Circle.
- Reprints
- Keywords
- Hellfire Club; Mutant Massacre
- Pencils
- Marc Silvestri (signed)
- Inks
- Joe Rubinstein (signed)
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- X-Factor [Cyclops; Jean Grey; Beast; Angel; Iceman; Rusty Collins]; Freedom Force [Mystique; Blob; Avalanche; Pyro; Spider-Woman [Julia Carpenter]]
- Reprints
- Script
- Louise Simonson
- Pencils
- Terry Shoemaker
- Inks
- Joe Rubinstein
- Colors
- Petra Goldberg
- Letters
- Joe Rosen
- Genre
- superhero
- Characters
- X-Factor [Cyclops; Jean Grey; Beast; Angel; Iceman; Rusty Collins; Artie Maddicks]; Skids; Trish Tilby; Cameron Hodge; Magneto; Leech; Caliban; Val Cooper; Freedom Force [Mystique; Blob; Avalanche; Pyro; Destiny; Spider-Woman [Julia Carpener]]
- Synopsis
- X-Factor rescues Rusty from Freedom Force. The mutant massacre begins in the Morlock tunnels.
- Reprints
- Pencils
- John Romita Jr. (signed)
- Inks
- Bob Wiacek (signed)
- Colors
- ?
- Genre
- superhero
- Characters
- Wolverine
- Reprints
Marvel 25th Anniversary Border
- Script
- Chris Claremont
- Pencils
- Bret Blevins (pencils); John Romita Jr. (layouts)
- Inks
- Al Williamson
- Colors
- Glynis Oliver
- Letters
- Tom Orzechowski
- Genre
- superhero
- Characters
- X-Men [Magneto; Storm; Wolverine; Colossus; Rogue; Nightcrawler; Shadowcat [Kitty Pryde]]; Psylocke; Illyana Rasputin [Magik]; Dani Moonstar [Mirage]; Callisto; Sunder; Piper; Annalee (dies); Morlocks (many die); Marauders [Scalphunter; Riptide (dies); Arclight; Scrambler; Harpoon; Vertigo]
- Synopsis
- The Marauders cut a path of death through the Morlock tunnels as the X-Men try to stop them. Colossus kills.
- Reprints
- Keywords
- Morlock tunnels; Mutant Massacre
Issue runs parallel to events in X-Factor #10 and is continued in New Mutants #46 and Uncanny #212
- Pencils
- Walter Simonson (signed)
- Inks
- Walter Simonson (signed)
- Colors
- ?
- Genre
- superhero
- Characters
- Cyclops
- Reprints
New logo; Marvel 25th Anniversary border
- Script
- Louise Simonson
- Pencils
- Walter Simonson
- Inks
- Bob Wiacek
- Colors
- Petra Goldberg
- Letters
- Joe Rosen
- Genre
- superhero
- Characters
- X-Factor [Cyclops; Jean Grey; Beast; Angel; Iceman; Rusty Collins; Artie Maddicks; Skids]; Morlocks [Erg; Zeek; Dreamer; Caliban; Leech; Tarbaby; Ape; Plague; others]; Freedom Force [Mystique; Destiny; Blob; Pyro; Avalanche]; Cameron Hodge; Trish Tilby; Candy Southern; Apocalypse; Marauders [Harpoon; Arclight; Scalphunter; Sabretooth; Blockbuster; Vertigo]
- Synopsis
- After a pitched battle with the Marauders in the Morlock tunnels, Angel's wings are pierced by Harpoon.
- Reprints
Continued in Power Pack #27.
- Pencils
- Barry Windsor-Smith
- Inks
- Barry Windsor-Smith
- Colors
- ?
- First Line of Dialogue or Text
- Clear out, kids-- --This is a job for the X-Men!
- Genre
- superhero
- Characters
- Cannonball; Magneto; Magma; Storm; Nightcrawler; Sunder; Colossus; Shadowcat; Callisto; Morlocks
- Reprints
- Script
- Chris Claremont
- Pencils
- Butch Guice
- Inks
- Kyle Baker
- Colors
- Glynis Oliver
- Letters
- Tom Orzechowski
- Genre
- superhero
- Characters
- Magneto; New Mutants [Cannonball; Cypher; Karma; Magik; Magma; Mirage; Sunspot; Warlock; Wolfsbane]; X-Men [Storm; Nightcrawler; Colossus; Shadowcat; Rogue; Psylocke]; Magus; Tom Corsi; Sharon Friedlander; Lockheed; Moira MacTaggert; Callisto; Sunder; Leong; Nga
- Synopsis
- The X-Men return to the school from their battle in the Alley, with casualties. Magik brings Moira to help. The New Mutants try to help, but just get in the way. Karma's siblings are kidnapped. Magus attacks the New Mutants, and Magik teleports them away.
- Reprints
A "Mutant Massacre" tie-in. The X-Men appear here between Uncanny X-Men #211 and #212.
- Pencils
- Walter Simonson (signed); John Romita (border)
- Inks
- Walter Simonson (signed); John Romita (border)
- Colors
- ?
- Genre
- superhero; fantasy-supernatural
- Characters
- Thor; Spider-Man [Peter Parker]; Hulk; Iron Man [Tony Stark]; Captain Marvel [Monica Rambeau]; Dr. Strange; Namor, the Sub-Mariner; Captain America [Steve Rogers]; Wasp; Ant-Man; Puck; Kitty Pride; Rogue; Wolverine; Colossus; Storm; Nightcrawler; Iceman; Jean Grey; Cyclops; Angel; Beast; Daredevil; Scarlet Witch; Vision; Hawkeye; Luke Cage; Thing; She-Hulk; Invisible Girl; Mr. Fantastic; Human Torch [Johnny Storm]; Phoenix [Rachel Summers]
- Reprints
- Script
- Walter Simonson
- Pencils
- Sal Buscema
- Inks
- Sal Buscema
- Colors
- Christie Scheele
- Letters
- John Workman
- Genre
- fantasy-supernatural; superhero
- Characters
- Thor; Angel; Volstagg; Balder; Heimdall; Puddlegulp; Bugeye; Kevin; Mick; Hela; Marauders [Harpoon; Blockbuster; Vertigo]; Odin (flashback); Jerry Sapristi; Tina Sapristi; Ernesto Sapristi; Pietro Sapristi; Giovanni Sapristi; Maria Sapristi; Rosa Sapristi; Gabriella Sapristi; Muninn
- Synopsis
- Thor returns to Midgard and tries to pick up the pieces of his life there. After a rousing afternoon with his boss's children, he is warned by his old allies, the Frogs, that something is amiss underground. Venturing into the Morlock tunnels, Thor happens across the Marauders killing the former X-Man, Angel.
- Reprints
Continued from X-Factor #11; Mutant Massacre crossover.
- Pencils
- Jon Bogdanove (signed)
- Inks
- P. Craig Russell (signed as PCR)
- Colors
- ?
- Letters
- ?
- Genre
- superhero
- Characters
- Power Pack [Destroyer [Alex Power]; Molecula [Julie Power]; Counterweight [Jack Power]; Starstreak [Katie Power]; Tattletale [Franklin Richards]]; Wolverine; Sabretooth
- Reprints
- Script
- Louise Simonson
- Pencils
- Jon Bogdanove
- Inks
- Al Gordon
- Colors
- Glynis Oliver
- Letters
- Joe Rosen
- Editing
- Carl Potts
- Genre
- superhero
- Characters
- Power Pack [Destroyer [Alex Power]; Molecula [Julie Power]; Counterweight [Jack Power]; Starstreak [Katie Power]; Tattletale [Franklin Richards]]; Dr. James Power; Margaret Power; Wolverine; Morlocks [Leech; Erg; Tar Baby; Ape; Dreamer; Skids; Caliban; Annalee (dead); others]; X-Factor [Cyclops; Jean Grey; Iceman; Beast]; Marauders [Sabretooth; Harpoon; Arclight; Scrambler; Scalphunter]
- Synopsis
- When Franklin accidentally contacts Leech and discovers that mutants are being massacred, Power Pack goes to rescue their friend Leech.
- Reprints
Mutant Massacre crossover.
Continued from X-Factor #10, Continued in Thor #374.
- Pencils
- Walter Simonson (signed)
- Inks
- Walter Simonson (signed)
- Colors
- ?
- Genre
- fantasy-supernatural; superhero
- Characters
- Thor; X-Factor [Angel; Cyclops; Jean Grey]; Blockbuster
- Reprints
- Script
- Walter Simonson
- Pencils
- Sal Buscema
- Inks
- Sal Buscema
- Colors
- Christie Scheele
- Letters
- John Workman
- Genre
- fantasy-supernatural; superhero
- Characters
- Thor; Balder; Silverhoof (Balder's horse); Wyrd; Volstagg; Gudrun; Hildy; Kevin; Mick; Asgardians kids; Muninn; Huginn; X-Factor [Angel; Cyclops; Jean Grey; Artie Maddicks]; Hela; Marauders [Harpoon; Blockbuster; Vertigo; Sabretooth]
- Synopsis
- Thor tries to protect the quickly dying Angel from the Marauders. Balder resurrects Odin's second Raven. Kevin and Mick are welcomed into Volstagg's family. With his arm already broken by Blockbuster, Thor is cursed with brittle bones by Hela. After the massacre is over, Thor cleanses the Morlock tunnels with fire.
- Reprints
Mutant Massacre Crossover.
- Script
- Chris Claremont
- Pencils
- Rick Leonardi
- Inks
- Dan Green
- Colors
- Glynis Oliver
- Letters
- Tom Orzechowski
- Genre
- superhero
- Characters
- X-Men [Magneto; Storm; Wolverine; Colossus; Rogue; Nightcrawler; Shadowcat [Kitty Pryde]]; Callisto; Healer; Morlocks; Psylocke; Moira MacTaggert; Sabretooth; Mr. Sinister (1st mention of)
- Synopsis
- Wolverine makes his way through Sabretooth to bring the Healer back to the mansion to tend the wounded. Nightcrawler, Kitty and Colossus are critically injured and taken out of action. The Morlock tunnels are purged.
- Reprints
- Keywords
- Morlock tunnels; Mutant Massacre
Continued in Thor #374 and Uncanny #213
- Pencils
- Walter Simonson (signed)
- Inks
- Walter Simonson (signed)
- Colors
- ?
- Genre
- superhero
- Characters
- Cyclops; Berzerker
- Reprints
- Script
- Louise Simonson
- Pencils
- Walter Simonson
- Inks
- Bob Wiacek
- Colors
- Petra Goldberg
- Letters
- Joe Rosen
- Genre
- superhero
- Characters
- X-Factor [Cyclops; Jean Grey; Beast; Angel; Iceman; Artie Maddicks; Leech; Skids]; Cameron Hodge; Morlocks [Caliban; Erg; Tar Baby; Ape; Berzerker (introduction, dies); Scaleface (dies); Blow Hard (dies); Masque]; Boom Boom; Savage Wolf Gang; Vanisher; Apocalypse; Abraham Lincoln Kieros (introduction, becomes War)
- Synopsis
- X-Factor tries to save a group of untrusting Morlocks from the Marauders, but the group leaves their rescuers and runs up against the police instead. Boom Boom quits stealing for the Vanisher. Doctors tell Cyclops and Jean that Angel's wings will have to be amputated.
- Reprints
Continued from Power Pack #28 and Thor #374.
- Pencils
- Arthur Adams (signed)
- Inks
- Klaus Janson (signed)
- Colors
- ?
- Letters
- ?
- Genre
- superhero
- Characters
- Daredevil; Sabretooth
- Reprints
- Script
- Ann Nocenti
- Pencils
- Sal Buscema
- Inks
- Steve Leialoha
- Colors
- Christie Scheele
- Letters
- Joe Rosen
- Genre
- superhero
- Characters
- Daredevil; Butch; Darla [both of the Fatboys Gang]; Sabretooth
- Synopsis
- Daredevil rescues a young woman who has been captured by Sabretooth in the Morlock tunnels.
- Reprints
Mutant Massacre Crossover
- Pencils
- Alan Davis (signed)
- Inks
- Paul Neary (signed)
- Colors
- ?
- Genre
- superhero
- Characters
- Wolverine; Sabretooth
- Reprints
- Script
- Chris Claremont
- Pencils
- Alan Davis
- Inks
- Paul Neary
- Colors
- Glynis Oliver
- Letters
- Tom Orzechowski
- Genre
- superhero
- Characters
- X-Men [Magneto; Storm; Wolverine; Colossus; Rogue; Nightcrawler; Shadowcat [Kitty Pryde]]; Dazzler; Psylocke (joins); Callisto; Morlocks; Moira MacTaggert; Sabretooth; Malice; Mr. Sinister (cameo); New Mutants [Cannonball; Doug Ramsey [Cypher]; Sunspot; Wolfsbane [Rahne Sinclair]; Magma; Warlock; Dani Moonstar [Mirage]; Illyana Rasputin [Magik]]
- Synopsis
- Sabretooth invades the mansion and Wolvie and Psylocke have to stop him. Psylocke joins the team.
- Reprints
- Pencils
- Arthur Adams
- Inks
- Barry Windsor-Smith
- Colors
- ?
- Genre
- superhero
- Characters
- Storm; Dazzler [Malice]
- Reprints
- Script
- Chris Claremont
- Pencils
- Barry Windsor-Smith
- Inks
- Bob Wiacek
- Colors
- Glynis Oliver
- Letters
- Tom Orzechowski
- Genre
- superhero
- Characters
- X-Men [Storm; Wolverine; Rogue; Psylocke]; Dazzler; Callisto; Lila Cheney; Malice
- Synopsis
- The X-Men track down a Malice possessed Dazzler, and Malice jumps from member to member during the battle.
- Reprints
- Pencils
- Walter Simonson
- Inks
- Walter Simonson
- Letters
- ?
- Genre
- superhero
- Characters
- X-Men; Thor; Power Pack
- Pencils
- John Romita Jr.
- Characters
- Scalphunter; Harpoon; Vertigo; Arclight; Scramble
- Reprints
- Pencils
- Terry Dodson
- Inks
- Kevin Conrad
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- Wolverine; Sabretooth; Thor; Angel
- Reprints
- Pencils
- Larry Stroman
- Inks
- Larry Stroman
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- Angel
- Reprints
- Pencils
- Larry Stroman
- Inks
- Larry Stroman
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- Sabretooth; Cyclops; Jean Grey
- Reprints
- Pencils
- Ian Churchill
- Inks
- ?
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- Sabretooth
- Reprints
- Pencils
- Steve Epting
- Inks
- Matthew Ryan
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- Wolverine; Sabretooth
- Reprints
- Pencils
- Steve Epting
- Inks
- Mike Sellers
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- Sabretooth; Wolverine; Rogue
- Reprints
- Pencils
- Klaus Janson
- Inks
- Klaus Janson
- Colors
- ?
- Letters
- typeset
- Genre
- superhero
- Characters
- Sabretooth; Daredevil
- Reprints
- Script
- ?
- Letters
- typeset
- Genre
- biography