| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Mystery of the Riverboat | 6301778251 (6301778251) | 1990 | William A. Sickner · Alvin Todd · Henry MacRae · Ande Lamb · Maurice Tombragel |
| Restless Breed | 6301952596 (6301952596) | 1991 | John W. Boyle · Charles B. Fitzsimons · Edward L. Alperson · Richard Einfeld · Steve Fisher |