Not the same as the 2011 cover with same title
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 2007 |
|
Het ivoren rijk | Mynx | Novel | |
| September 2007 |
|
Empire of Ivory | Books on Tape | Novel | |
| September 2007 |
|
Empire of Ivory | Del Rey / Ballantine | Novel | |
| April 2008 |
|
Empire of Ivory | Paw Prints | Novel | |
| May 2008 |
|
Drachenglanz | cbt | Novel | |
| September 2008 |
|
L'empire d'ivoire | Le Pré aux Clercs | Novel | |
| October 2008 |
|
Imperium kości słoniowej | Dom Wydawniczy Rebis | Novel | |
| May 2011 |
|
L'empire d'ivoire | Presses Pocket | Novel |