Mysterious Press · Severn House Publishers Ltd · Ullstein Tb
| title | ISBN-13 | year of publica- tion | |
|---|---|---|---|
| Deadly Departures | 978-0-7278-6576-2 | 2007 | |
| Deep Purple | 978-0-89296-401-7 | 1990 | |
| Geheimcode Deep Purple. | 978-3-548-24375-7 | 1998 | |
| Hostage | 978-0-7278-6037-8 | 2004 | |
| The Spirit of Liberty | 978-0-7278-6458-1 | 2006 |