| 0 | The Phantom City of Death! | cover | 1 | pencils: Dick Dillin; inks: Chuck Cuidera; colors: Jack Adler; letters: Ira Schnapp | Bomba; Buo-Buo |
| 1 | The Phantom City of Death! [Part 1] | comic story | 8.5 | script: George Kashdan; pencils: Leo Summers; inks: Leo Summers | Bomba; Professor Wilson; Buo-Buo; Lakoma; Doto (monkey); Tiki (parrot) |
| 2 | The Challengers of the Unknown Have Fought Every Kind of Foe... | promo (ad from the publisher) | 0.5 | pencils: Bob Brown; inks: Bob Brown; letters: Ira Schnapp | |
| 3 | Spectre-acular Announcement! | promo (ad from the publisher) | 1 | pencils: Murphy Anderson; inks: Murphy Anderson; letters: Ira Schnapp | |
| 4 | Early Returns | letters page | 1 | script: George Kashdan | |
| 5 | The Phantom City of Death! Part 2 | comic story | 6.5 | script: George Kashdan; pencils: Leo Summers; inks: Leo Summers | Bomba; Professor Wilson; Buo-Buo; Amy Wilson; Atahu |
| 6 | Witty Woody Allen and the Mad Maniaks... | promo (ad from the publisher) | 0.5 | pencils: Mike Sekowsky; inks: Mike Esposito; letters: Ira Schnapp | |
| 7 | Ban Gloom! | promo (ad from the publisher) | 1 | pencils: Carmine Infantino, Joe Orlando; inks: Joe Orlando; letters: Joe Orlando | |
| 8 | The Phantom City of Death! Part 3 | comic story | 7.5 | script: George Kashdan; pencils: Leo Summers; inks: Leo Summers | Bomba; Buo-Buo; Amy Wilson; Professor Wilson; Atahu; Kawkaw (condor); Incas (South American tribe) |
| 9 | The Winning Number Is 3! | promo (ad from the publisher) | 1 | pencils: Carmine Infantino; inks: Sid Greene; letters: Ira Schnapp | |
| 10 | - | activity | 0.5 | script: Henry Boltinoff; pencils: Henry Boltinoff; inks: Henry Boltinoff; letters: Henry Boltinoff | |
| 11 | - | in-house column | 1 | pencils: Gil Kane, Mike Sekowsky; inks: Murphy Anderson, George Roussos | |