| # | Book Title | Author | |
|---|---|---|---|
| 1 | Secret Baseball Challenge, The | Jenkins, Jerry B. | |
| 2 | Scary Basketball Player | Jenkins, Jerry B. | |
| 3 | Mysterious Football Team, The | Jenkins, Jerry B. | |
| 4 | Weird Soccer Match, The | Jenkins, Jerry B. | |
| 5 | Strange Swimming Coach, The | Jenkins, Jerry B. | |
| 6 | Bizarre Hockey Tournament, The | Jenkins, Jerry B. | |
| 7 | Silent Track Star, The | Jenkins, Jerry B. | |
| 8 | Angry Gymnast, The | Jenkins, Jerry B. |