[2][3] The magazine starred Morbius the Living Vampire, in a feature written primarily by Don McGregor, with pencillers including Pablo Marcos, Rich Buckler, Tom Sutton, and Mike Vosburg, and later by writer Doug Moench, with artist Sonny Trinidad.

Issue #2 (Oct. 1973) introduced Satana the Devil's Daughter, in a four-page teaser by writer-editor Roy Thomas and artist John Romita Sr.; and detective Hodiah Twist and his assistant Conrad Jeavons, created by Don McGregor and penciller Carlos Garzon.

Writer Ron Goulart and Roy Thomas and artist Win Mortimer adapted the vampire short story "The Vampyre", by John Polidori, in issue #1.

Stories reprinted from Marvel's 1950s predecessor Atlas Comics included pre-Comics Code Authority work by such artists as Bill Everett and Carmine Infantino.

Other reprints included writer-artist Jim Steranko's "At the Stroke of Midnight" from Tower of Shadows #1 (Sept. 1969) and the 11-page Morbius origin sequence from The Amazing Spider-Man #102 (Nov. 1971).