- Script:
- Len Wein (plot); Chris Claremont (script)
- Pencils:
- Dave Cockrum
- Inks:
- Bob McLeod [misspelled McCleod]
- Colors:
- Phil Rachelson
- Letters:
- Tom Orzechowski
- Genre:
- superhero
- Characters:
- X-Men [Professor X; Cyclops; Storm; Wolverine; Colossus; Thunderbird; Banshee; Nightcrawler]; Jean Grey; Iceman; Angel; Havok; Lorna Dane; Beast; Sunfire; Count Nefaria; Ani-Men [Frog-Man; Bird-Man; Ape-Man, Cat-Man; Dragonfly]; General Fredericks; Porcupine; Eel; Scarecrow; Unicorn; Plant Man
- Synopsis:
- The old X-Men quit, but Cyclops stays behind to lead the new team; Nefaria takes over Valhalla air force base, and the X-Men move in to stop him.
- Reprints: show reprint note before migration
- in Capitan America (Editoriale Corno, 1973 series) #116 (21 Settembre 1977)
- in Classic X-Men (Marvel, 1986 series) #2 (October 1986)
which is reprinted- in Marvel Masterworks (Marvel, 1987 series) #11 ([November] 1989)
- in L' Uomo Ragno (Edizioni Star Comics, 1987 series) #55 (30 Agosto 1990) [part 1, as used in Classic X-Men #2]
- in L' Uomo Ragno (Edizioni Star Comics, 1987 series) #56 (15 Settembre 1990) [part 2, as used in Classic X-Men #2]
- in X-Men Classic (Marvel Italia, 1995 series) #1 (Ottobre 1995)
- in Essential X-Men (Marvel, 1996 series) #1 (May 1997)
- in Wizard Ace Edition: Uncanny X-Men #94 (Marvel / Wizard, 2002 series) #[nn] (June 2002)
- in Giant-Size X-Men (Marvel, 2005 series) #4 (2006)
1st New X-Men in their own book; Continued from Giant-Size X-men #1; Story is divided into two chapters with the second chapter being called "Death O'er Valhalla High!"