| Cover Artist | Dan Adkins, Tom Orzechowski |
| Editor | Stan Lee |
| Inker | George Bell, Steve Ditko |
| Letterer | L.P. Gregory |
| Penciler | Don Heck, Steve Ditko |
| Writer | Roy Thomas, Stan Lee |
| Genre | Superhero |
| Published in | New York, New York |
| Pages | 32 |
| Characters | Cyclops (Scott Summers), Marvel Girl (Jean Grey), Angel (Warren Worthington III), Iceman (Bobby Drake), Beast (Hank McCoy), Professor X (Charles Xavier) |
| Story Location | New York: Westchester County, Unknown US military base, Central Europe; Factor Three's hideout in the Alps, Eastern Europe; East Germany |
| Collects | "The Sinister Shadow Of... Doomsday!" #38, "The Spirit of Swami River" |
| Links | Issue link · Reprint link · Reprint link |
| Notes | Reprinted Issues:
1st Story: X-Men Vol 1 #38, November, 1967; "The Sinister Shadow of... Doomsday!"
2nd Story: Amazing Adult Fantasy Vol 1 #9, February, 1962; "The Spirit of Swami River" |
