Adventures Unlimited Press · Kessinger Publishing, LLC
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Round Towers of Ireland or History of the Tuath De Danaans | 978-0-7661-5925-9 (0-7661-5925-6) | 2003 |
| The Round Towers of Atlantis | 978-1-931882-01-9 (1-931882-01-0) | 2002 |