| title | ISBN-13 | year of publication |
|---|---|---|
| Able Gate | 978-1-56054-675-7 | 1993 |
| Colorado Gold by Douglas Hirt from Books In Motion.com | 978-1-60548-965-0 | 2011 |
| Flight to Eden | 978-1-58919-053-5 | 2004 |
| Flight to Eden by Douglas Hirt, from Books in Motion.com | 978-1-59607-437-8 | 2005 |
| Mississppi Pirates by Douglas Hirt, from Books In Motion.com | 978-1-60548-906-3 | 2011 |
| Mist Runner by Douglas Hirt from Books In Motion.com | 978-1-60548-298-9 | 2009 |
| Quest for Atlan | 978-1-58919-044-3 | 2005 |
| Quest for Atlan by Douglas Hirt by Books In Motion.com | 978-1-59607-623-5 | 2006 |
| Riverboat by Douglas Hirt by Books In Motion.com | 978-1-60548-870-7 | 2011 |
| The Fall of Nephilim by Douglas Hirt from Books In Motion.com | 978-1-59607-652-5 | 2015 |
| The Fall of the Nephilim | 978-1-58919-045-0 | 2006 |
D,. H.. · Douglas Hardy · Douglas Hart · Douglas Hearth · Douglas Howard · Douglas Hurd
Books In Motion · David C. Cook · Thorndike Pr