| 0 | - | cover | 1 | pencils: Luis Dominguez; inks: Luis Dominguez; colors: Tatjana Wood | Cain |
| 1 | - | foreword, introduction, preface, afterword | 1 | pencils: Pat Broderick; inks: Pat Broderick | Cain |
| 2 | Garden of Evil | comic story | 9 | script: Jack Oleck; pencils: Alfredo Alcala; inks: Alfredo Alcala | Cain (host) |
| 3 | Room 13 | activity | 1 | pencils: Sergio Aragonés; inks: Sergio Aragonés | |
| 4 | - | promo (ad from the publisher) | 1 | | |
| 5 | - | promo (ad from the publisher) | 1 | | |
| 6 | Teddy Doesn't Seem to Smile Anymore! | comic story | 3 | script: Martin Pasko; pencils: Frank Robbins; inks: Frank Robbins | Cain (host) |
| 7 | The Devil's Chessboard | comic story | 5.67 | pencils: Leonard Starr; inks: Leonard Starr | Cain (host, inserted); Alan Blake; Elsa Trent; Rabu |
| 8 | Coming Super-Attractions! | promo (ad from the publisher) | 0.33 | | |
| 9 | - | letters page | 2 | letters: typeset | |
| 10 | The Living Nightmare! | comic story | 7.67 | script: John Broome; pencils: Carmine Infantino; inks: Bernard Sachs | Phantom Stranger; Cain (host, inserted) |
| 11 | The Masters of Mystery | promo (ad from the publisher) | 0.33 | | |
| 12 | Monster in the House | comic story | 9 | script: Jack Oleck; pencils: Nestor Redondo; inks: Nestor Redondo | Cain (host) |
| 13 | The Line of DC Super-Stars | promo (ad from the publisher) | 1 | | |
| 14 | Scared to Life | comic story | 3 | script: Marv Wolfman; pencils: Berni Wrightson; inks: Berni Wrightson | Cain (host); Lord Dufferin |
| 15 | - | cartoon | 1 | pencils: Sergio Aragonés; inks: Sergio Aragonés | |
| 16 | The School for Sorcerers | comic story | 6 | pencils: Bill Ely; inks: Bill Ely | Cain (host, inserted) |
| 17 | The Perfect Mate | comic story | 6 | script: Robert Kanigher, Michael Pellowski; pencils: Jess Jodloman; inks: Jess Jodloman | Cain (host) |
| 18 | - | illustration | 1 | | Cain |
| 19 | The Wishes of Doom! | comic story | 7.67 | pencils: Curt Swan; inks: George Klein | Cain (host, inserted) |
| 20 | Coming Super-Attractions | promo (ad from the publisher) | 0.33 | | |
| 21 | The Haunted Melody | comic story | 6 | pencils: Bill Ely; inks: Bill Ely | Cain (host, inserted) |
| 22 | Do You Dare Enter The House of Mystery? | comic story | 3 | script: Paul Levitz; pencils: Pat Broderick, Sergio Aragonés; inks: Pat Broderick, Sergio Aragonés | Cain; Paul Levitz; Tex Blaisdell; Sergio Aragones; Michael Fleisher; Jack Oleck; David Michelinie; Joe Orlando; Dave Manak; Gregory the Gargoyle; Poochie |
| 23 | Out of This World | comic story | 9 | script: Jack Oleck; pencils: Gerry Talaoc; inks: Gerry Talaoc | Cain (host) |
| 24 | Hidden in the House! | activity | 1 | script: Bob Rozakis | Cain |