| 0 | - | cover | 1 | pencils: Ross Andru; inks: Dick Giordano | |
| 1 | Superman: The Secrets of the Fortress of Solitude | credits, title page | 1 | pencils: Doug Mahnke; inks: Tom Nguyen; colors: Ian Hannin | Superman |
| 2 | Superman: The Secrets of the Fortress of Solitude | table of contents | 2 | pencils: Doug Mahnke; inks: Tom Nguyen | Superman; Jor-El (statue) |
| 3 | Muscles for Sale | comic story | 13 | script: Jerry Siegel; pencils: John Sikela; inks: John Sikela | Superman [Clark Kent]; Jake Massey; Lois Lane; George Brant; Mrs. Brant; Mike Mosby; Nat Folsom |
| 4 | The Super-Key to Fort Superman! | cover reprint (on interior page) | 1 | pencils: Curt Swan; inks: Stan Kaye | Superman |
| 5 | The Super-Key to Fort Superman | comic story | 12 | script: Jerry Coleman; pencils: Wayne Boring; inks: Stan Kaye | Superman; Lois Lane; Jimmy Olsen; Batman; Joker (trophy) |
| 6 | Secrets of the Fortress of Solitude! | cover reprint (on interior page) | 1 | pencils: Curt Swan; inks: Stan Kaye; letters: Ira Schnapp | Superman; Lois Lane (statue); Jimmy Olsen (statue); Perry White (statue); Jor-El (statue); Streaky (inset) |
| 7 | Superman's Fortresses of Solitude! | comic story | 12 | script: Jerry Siegel; pencils: Wayne Boring; inks: Stan Kaye; letters: Joe Letterese | Superman [Clark Kent]; Superman robots; Big Bob Kruger; The Welder; Anti-Superman Gang; Urko the Terrible; Jor-El (statue); Lara (statue); Martha Kent (statue); Jimmy Olsen (statue); Perry White (statue); Lois Lane (statue); Alvin; Alvin's Mom; Wotsis (cameo); Mars-Ol; Ra-Ho |
| 8 | Superman and His Incredible Fortress of Solitude | cover reprint (on interior page) | 1 | pencils: Ross Andru; inks: Dick Giordano | |
| 9 | Superman and His Incredible Fortress of Solitude - Back Cover | illustration | 1 | pencils: Ross Andru; inks: Dick Giordano; letters: Gaspar Saladino | |
| 10 | Fortress of Fear! | comic story | 64 | script: Roy Thomas; pencils: Ross Andru; inks: Romeo Tanghal; colors: Jerry Serpe; letters: Gaspar Saladino | |
| 11 | - | cover reprint (on interior page) | 1 | pencils: George Pérez; inks: Jerry Ordway | Superman; The Cleric; Cellkeeper 385; Gladiator Attendant Lentra |
| 12 | Memories of Krypton's Past | comic story | 48 | script: Jerry Ordway, George Pérez, Roger Stern; pencils: Jerry Ordway, Mike Mignola, Curt Swan; inks: John Statema, George Pérez, Brett Breeding; colors: Glenn Whitmore; letters: Bill Oakley | Superman [Clark Kent; Kal-El]; The Cleric; Cellkeeper 385; Gladiator Attendant Lentra; Draaga; Jor-El (flashback); Kelex (flashback); Lara (flashback); Sen-M the Elder (flashback); the League of Life (flashback); Syra (flashback); Tyr-N (flashback); Perry White (flashback); Lois Lane (flashback); Ji |
| 13 | The New Fortress of Solitude Revealed! | cover reprint (on interior page) | 1 | pencils: Doug Mahnke; inks: Tom Nguyen; colors: Ian Hannin | Superman |
| 14 | Creation Story | comic story | 38 | script: Mark Schultz; pencils: Doug Mahnke; inks: Tom Nguyen; colors: Glenn Whitmore, Wildstorm FX; letters: Ken Lopez | Superman; Lois Lane; Steel [John Henry Irons]; Natasha Irons; Luna; The Cybermoths [Polyphemus 212; Sphinx 44; Gypsy 84]; The Overmind; Kelex; The Cyborg Superman; Cerizah; Boris |
| 15 | - | illustration | 1 | pencils: John Sikela; inks: John Sikela | Superman |
| 16 | Secrets of the Fortress of Solitude | illustration | 2 | script: Geoff Johns, Richard Donner; pencils: Phil Jimenez; inks: Andy Lanning; colors: Jeromy Cox; letters: Travis Lanham | |
| 17 | Behold the Mysteries of the Fortress of Solitude! | promo (ad from the publisher) | 1 | pencils: Wayne Boring; inks: Stan Kaye | Superman |