| 0 | - | cover | 2 | pencils: Nick Cardy; inks: Nick Cardy; letters: Gaspar Saladino | Superboy [Clark Kent; Kal-El]; Legion of Super-Heroes [Invisible Kid [Lyle Norg]; Saturn Girl [Imra Ardeen]; Cosmic Boy [Rokk Krinn]; Brainiac 5 [Querl Dox]; Phantom Girl [Tinya Wazzo]; Chameleon Boy [Reep Daggle]; Lightning Lad [Gart Ranzz]; Element Lad [Jan Arrah]]; Star-Spangled Kid; Little Boy B |
| 1 | - | table of contents | 1 | script: E. Nelson Bridwell | Superboy; Little Boy Blue; Robin [Dick Grayson]; Kid Eternity; Star-Spangled Kid |
| 2 | Clark Kent's Super-Father! | comic story | 12.67 | script: Robert Bernstein; pencils: George Papp; inks: George Papp; letters: Joe Letterese | Superboy [Clark Kent; Kal-El]; Jax-Ur; Jonathan Kent; Legion of Super-Heroes [Saturn Girl [Imra Ardeen]; Cosmic Boy [Rokk Krinn]; Lightning Lad [Gart Ranzz]] (statues); Professor Lang; Martha Kent |
| 3 | The Jigsaw Puzzle Murder! | comic story | 9 | script: Joe Samachson; pencils: Jon Small; inks: Jon Small; letters: Ira Schnapp; editing: Jack Schiff | Pudge Malone (death); Baldy Hines; Mr. Pemberton; The Star-Spangled Kid [Sylvester Pemberton]; Stripsey [Pat Dugan]; Commissioner Dunn; Beetle |
| 4 | The Astounding Separated Man | comic story | 24.34 | script: Bob Haney; pencils: Bruno Premiani; inks: Bruno Premiani; letters: Stan Starkman; editing: George Kashdan | Teen Titans [Robin [Dick Grayson]; Kid Flash [Wally West]; Wonder Girl [Donna Troy]; Aqualad [Garth]]; Justice League of America [JLA; Batman [Bruce Wayne] (Cameo); Flash [Barry Allen] (Cameo); Wonder Woman [Diana Prince] (Cameo); Aquaman [Arthur Curry] (Cameo)]; Tommy Holmes; Professor Brian Holmes |
| 5 | Kid Eternity Hoax! | comic story | 15 | pencils: Pete Riss; inks: Pete Riss; editing: George Brenner | Kid Eternity; Mr. Keeper; Lally Lawton; Mr. Hardeel; Davy Crockett; Cheesy; Jarrick; Alexander Hamilton; Lord Byron; Tecumseh; Belle Boyd; Jesse James |
| 6 | Part I: The Eight Impossible Missions! | comic story | 7.67 | script: Jerry Siegel; pencils: John Forte; inks: John Forte; letters: Joe Letterese | Legion of Super-Heroes [Sun Boy [Dirk Motgna]; Saturn Girl [Imra Ardeen]; Superboy [Clark Kent; Kal-El]; Phantom Girl [Tinya Wazzo]; Chameleon Boy [Reep Daggle]; Brainiac 5 [Querl Dox]; Ultra Boy [Jo Nah]; Element Lad [Jan Arrah]; Shrinking Violet [Salu Digby]; Triplicate Girl [Luornu Durgo]; Light |
| 7 | Part II: The Amazing Winner of the Great Proty Puzzle! | comic story | 7.67 | script: Jerry Siegel; pencils: John Forte; inks: John Forte; letters: Joe Letterese | Legion of Super-Heroes [Sun Boy [Dirk Morgna]; Saturn Girl [Imra Ardeen]; Superboy [Clark Kent; Kal-El]; Phantom Girl [Tinya Wazzo]; Chameleon Boy [Reep Daggle]; Brainiac 5 [Querl Dox]; Ultra Boy [Jo Nah]; Element Lad [Jan Arrah]; Shrinking Violet [Salu Digby]; Triplicate Girl [Luornu Durgo]; Light |
| 8 | The Origin of Little Boy Blue | comic story | 6 | script: Bill Finger; pencils: Jon Blummer; inks: Jon Blummer; letters: Jon Blummer; editing: Sheldon Mayer | Little Boy Blue [Tommy Rogers] (introduction); The Blue Boys [Tubby; Toughie] (introduction for both); D. A. Dan Rogers (Tommy's father); Martha Rogers (Tommy's mother); Wolf Lupo (villain) |
| 9 | The Rip Van Winkle of Smallville | comic story | 10 | script: Edmond Hamilton; pencils: Curt Swan; inks: Bruno Premiani | Superboy [Clark Kent; Kal-El]; John Blair; Mary Norton; Henry Vanning; Dr. Harris |
| 10 | - | letters page | 2 | script: E. Nelson Bridwell | Superboy; Krypto |
| 11 | Key to DC's Young Heroes! | text article | 1 | script: E. Nelson Bridwell | |