| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2011 | 978-0-9831721-1-6 | Damian Lawrence | The Sacred City: Book II of The Guardians Series |
| '' | 978-0-9831721-2-3 | '' | The Guardians of Time: Book I of The Guardians Series |
| '' | 978-0-9831721-4-7 | '' | The Guardians of Time (Special Edition): Book I of The Guardians Series |
| '' | 978-0-9831721-6-1 | '' | The Sacred City: Book II of The Guardians Series (Special Edition) |
| '' | 978-0-9831721-8-5 | '' | The Guardians of Time |