- Script:
- Steve Ditko (plot); Stan Lee (dialogue)
- Pencils:
- Steve Ditko
- Inks:
- Steve Ditko
- Colors:
- Stan Goldberg
- Letters:
- Artie Simek
- Genre:
- Occult
- Characters:
- Dr. Strange; The Demon; The Ancient One; Hamir (unnamed); Baron Mordo; Dormammu; Clea (unnamed); Clea's father (unnamed)
- Synopsis:
- Strange reaches Greenwich Village safely, but discovers "one of Mordo's Demons" has taken over his sanctum! In a hidden cave in Tibet, The Ancient One's servant wonders what his near-unconscious master refers to by "Eternity". Using a disguise from a costume shop, Strange bluffs his way into his own house. But when he tries to consult the "All-Seeing Eye", he finds out it's been mystically booby-trapped, sending a signal to Mordo & Dormammu of his whereabouts! Clea wonders about the "Dread One"'s intentions, and senses Strange must be in danger. Mordo arrives and battles Strange fiercely. As Strange is about to use a potent spell, Dormammu speaks thru his "partner", and Strange suddenly realizes who is behind the attacks-- just before he vanishes from sight...
- Reprints: show reprint note before migration
- in Marvel's Greatest Comics (Marvel, 1969 series) #23 (October 1969)
- in Strange Tales (Marvel, 1973 series) #184 (March 1976)
which is reprinted- in Doctor Strange Master of the Mystic Arts (Simon and Schuster, 1979 series) #[nn] (1979)
- in Doctor Strange, Master of the Mystic Arts (Pocket Books, 1978 series) #2 (July 1979)
- in Doctor Strange Classics Starring Doctor Strange (Marvel, 1984 series) #1 (March 1984)
- in Marvel Masterworks (Marvel, 1987 series) #23 ([December] 1992)
- in Essential Dr. Strange (Marvel, 2001 series) #1 (December 2001) [black & white]
- in Marvel Masterworks: Doctor Strange (Marvel, 2003 series) #1 ([September] 2003)
- in Marvel Masterworks: Doctor Strange (Marvel, 2010 series) #1 ([December] 2010)
Part 3 of 17. Though not indicated in the dialogue, The Demon is the same villain last seen in STRANGE TALES #128 (January 1965).