| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1981 |
|
The Guardian of Isis | Hamish Hamilton | Novel | |
| March 1982 |
|
The Guardian of Isis | An Argo Book / Atheneum | Novel | |
| May 1982 |
|
The Guardian of Isis | Magnet | Novel | 1 |
| 1983 |
|
The Guardian of Isis | Magnet | Novel | |
| January 1992 | The Guardian of Isis | Mammoth | Novel | ||
| September 2002 |
|
Le gardien d'Isis | Médiaspaul | Novel | |
| August 2006 |
|
The Isis Trilogy | Tundra Books | Omnibus | |
| October 2017 |
|
The Isis Trilogy | Tundra Books | Omnibus |