| title | ISBN-13 | year of publication |
|---|---|---|
| Abu Wahab Caper | 978-0-380-76356-6 | 1980 |
| Dada Caper | 978-0-380-01839-0 | 1978 |
| Echoes of Zero | 978-0-312-22552-0 | 1981 |
| Missing Bishop | 978-0-445-40533-2 | 1986 |
| Monastery Nightmare | 978-0-445-40567-7 | 1987 |
| Radish River Caper | 978-0-380-77248-3 | 1981 |
| Reggis Arms Caper | 978-0-380-47092-1 | 1979 |
| The Compleat Chance Purdue | 978-1-57090-045-7 | 1997 |
| The Devereaux File | 978-0-7927-0894-0 | 1991 |
| The Devereaux File | 978-0-7927-0895-7 | 1991 |
| The Fedorovich File | 978-1-55611-249-2 | 1991 |
| The Stranger City caper | 978-0-380-75036-8 | 1980 |
H.S. · H. Spencer · R. H. · R. S. · R Spencer · Ross Spencer
Alexander Books · Avon Books · Dutton Adult · John Curley & Associates · Popular Library · St. Martin's Press