| # | Book Title | Author | ||
|---|---|---|---|---|
| 1 | Great Baseball Card Hunt, The | Greenberg, Daniel A. | ||
| 4 | Missing Championship Ring, The | Greenberg, Daniel A. |
Juvenile Series and Sequels
| # | Book Title | Author | ||
|---|---|---|---|---|
| 1 | Great Baseball Card Hunt, The | Greenberg, Daniel A. | ||
| 4 | Missing Championship Ring, The | Greenberg, Daniel A. |