| # | Book Title | Author | |
|---|---|---|---|
| 1 | Mystery of the Missing Stallions | Moore, Ruth Nulton | |
| 2 | Mystery of the Secret Code | Moore, Ruth Nulton | |
| 3 | Mystery of the Lost Heirloom | Moore, Ruth Nulton | |
| 4 | Mystery at Camp Ichthus | Moore, Ruth Nulton | |
| 5 | Ghost Town Mystery | Moore, Ruth Nulton | |
| 6 | Mystery at the Spanish Castle | Moore, Ruth Nulton | |
| 7 | Mystery at Captain's Cove | Moore, Ruth Nulton |