| 0 | Who Will Kill Gigantus?; The Abominable Snowman; The Thing from the Dead Letter Office | cover | 1 | pencils: Nick Cardy; inks: Nick Cardy; letters: Gaspar Saladino | |
| 1 | Table of Contents | table of contents | 1 | script: Murray Boltinoff; pencils: Nick Cardy; inks: Nick Cardy | |
| 2 | The House of the Executioner | comic story | 6 | script: Leo Dorfman; pencils: E. R. Cruz; inks: E. R. Cruz | Loren Grue; Sheldon Sutton; Gorse |
| 3 | The Corpse in the Dead Letter Office | comic story | 7 | pencils: John Calnan; inks: John Calnan | Margaret Poe; Luanne Lowry |
| 4 | Something's Alive in Volcano 13! | comic story | 7.67 | pencils: Jim Mooney; inks: Jim Mooney | Professor Eric Fielding; Joe Hiller; Dr. Susan Acres; Professor J. A. Pringle |
| 5 | The Man Who Cheated Death | comic story | 7.67 | pencils: Bill Ely; inks: Bill Ely; letters: Stan Starkman | Bill Lorman; "Big Benny" Doyle; Murdoch |
| 6 | The Mystery of the Sorcerer's Squad | comic story | 7.67 | pencils: Amilcar Ruben Moreira; inks: Amilcar Ruben Moreira; letters: Stan Starkman | Lt. Jed Conway; Staley; Dick Larsen; Al Francis |
| 7 | Statement of Ownership, Management and Circulation | statement of ownership | 0.33 | letters: typeset | |
| 8 | The Phantom Duel | comic story | 5.67 | pencils: Bill Ely; inks: Bill Ely; letters: Joe Letterese | Pierre Monsard; Raoul D'Arles |
| 9 | Beware, I Can Read Your Mind | comic story | 6 | pencils: Sheldon Moldoff; inks: Sheldon Moldoff | Tello the Great [Johnny Carter]; Doctor Benson |
| 10 | I Battled the Abominable Snowman | comic story | 8 | pencils: Leonard Starr; inks: Leonard Starr | Kurdu; Frank Martin; Jess Lewis; Mr. Tyndall; Floyd Jameson |
| 11 | Born Loser! | comic story | 5 | script: Carl Wessler; pencils: Sonny Trinidad; inks: Sonny Trinidad | Lou Lowry; Mr. Bromley |
| 12 | The Dagger's Deed | comic story | 1 | pencils: ? (Philippines studio); inks: ? (Philippines studio) | |
| 13 | The Mystery of the Teen-Age Swami | comic story | 5.67 | pencils: George Roussos; inks: George Roussos | Ray Weede |
| 14 | Body Snatcher! | comic story | 5 | script: Carl Wessler; pencils: Rich Buckler; inks: Rich Buckler; letters: Milt Snapinn | Roy Cabal; Fern; Felix Pilcher |
| 15 | Who Will Kill Gigantus? | comic story | 8 | script: George Kashdan; pencils: Alfred P. Alcala; inks: Alfred P. Alcala | Mr. Calvert; Boehme |
| 16 | - | letters page | 2 | script: Murray Boltinoff | |