| title | ISBN-13 | year of publication |
|---|---|---|
| Alien Citadel | 978-0-689-50281-1 | 1984 |
| Day of the Starwind | 978-0-689-50205-7 | 1981 |
| Deathwing over Veynaa | 978-0-689-50192-0 | 1981 |
| Galactic Warlord | 978-0-689-50164-7 | 1980 |
| Master of Fiends | 978-0-689-50419-8 | 1988 |
| Planet of the Warlord | 978-0-689-50222-4 | 1982 |
A. H. · A. Hill · Arthur H. · D.A. · D.A. Hill · D,. H.. · D. Hill · Douglas A. · Douglas A. Hill · Douglas Arthur · Douglas Hill