| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Quatermain | 978-1-4507-2377-0 | 2012 | |
| Rift Walker, The | 978-1-4915-1001-8 | 2014 | |
| The Kingmakers | 978-1-61614-674-0 | 2012 | Susan Griffith |
| The Rift Walker | 978-1-4915-1000-1 | 2014 | |
| The Rift Walker | 978-1-4915-1002-5 | 2014 | |
| The Undying Legion: Crown & Key | 978-0-345-54048-5 | 2015 | |
A.G. · A. Griffith · A.S. · C.A. · C. G. · C. Griffith · C.S. · Clay Griffith · Clay S. Griffith · S. G. · Susan Griffith
Ballantine Books · Brilliance Audio · Prometheus · Various small imprints