| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| Escape From Castle Cant | Paperback | 978-0-316-15436-9 | 2007 |
| Escape from Castle Cant | Hardcover | 978-0-316-10857-7 | 2006 |
| The Secret of Castle Cant | Paperback | 978-0-316-05991-6 | 2006 |
| The Secret of Castle Cant | Hardcover | 978-0-316-10848-5 | 2004 |