| title | ISBN-13 | year of publication |
|---|---|---|
| Seeking the Worm | 978-0-19-275069-3 | 2000 |
| The Alchemy Set | 978-0-19-271767-2 | 1998 |
| The Bold Enchanter | 978-0-19-271759-7 | 1999 |
| The Four Children of Night | 978-0-19-275141-6 | 2001 |
| The Four Children of Night | 978-0-19-271846-4 | 2000 |