| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2000 | 978-0-9672819-2-6 | Scott Gutelius · Marshall Stone | True Secrets of Key West Revealed! |
| 2003 | 978-0-9672819-4-0 | Scott Gutelius · Marshall Stone · Marcus Varner | True Secrets of Key West Revealed! |
| 2002 | 978-0-9672819-6-4 | Scott Gutelius · Marshall Stone · Daniel Reynen | True Secrets of Salt Lake City and The Great Salt Lake Revealed! |
| 2003 | 978-0-9672819-7-1 | Scott Gutelius · Marcus Varner · Daniel Reynen · Carol Varner | True Secrets of Washington, D.C. Revealed! |