T.R. · T.T. · Tracy R. Twyman - With Additional Material by Commander X
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Dagobert's Revenge Magazine, Volume 5, Number 1 | 978-0-9761704-1-9 | 2003 | |
| Solomon's Treasure: The Magic And Mystery of America's Money | 978-0-9761704-6-4 | 2009 | |
| The Arcadian Mystique: The Best of Dagobert's Revenge Magazine | 978-0-9761704-2-6 | 2005 | |
| The Dragon Legacy: The Secret History of an Ancient Bloodline | 978-1-58509-131-7 | 2004 | Nicholas de Vere |
| The Merovingian Mythos and the Mystery of Rennes-le-Chateau | 978-0-9761704-0-2 | 2009 | |