| # | Book Title | Author | |
|---|---|---|---|
| 1 | Key to the Treasure | Parish, Peggy | |
| 2 | Clues in the Woods | Parish, Peggy | |
| 3 | Haunted House | Parish, Peggy | |
| 4 | Pirate Island Adventure | Parish, Peggy | |
| 5 | Hermit Dan (1977); Mystery of Hermit Dan, The (1981) | Parish, Peggy | |
| 6 | Ghosts of Cougar Island, The | Parish, Peggy |