| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Realm of Darkness - Series 3 - Diabolical Devise: Realm of Darkness - Series 3 - Diabolical Devise | 978-1-4774-1533-7 (1-4774-1533-5) | 2012 |
| Realm of Darkness - Series 4 - Crossroads: Series | 978-1-4774-7378-8 (1-4774-7378-5) | 2012 |