* _The Ascendant_ (1996)
* _The Covenant of Shadows_ (1998)
* _The Heir to an Empire_ (1999)
Short Stories:
* "The Shadow of Death" (1997)
* "The Price of Power" (2000)
* "The Last Battle" (2001)
Non-fiction:
* _A History of the First Crusade_ (2003)
* _The Art of Medieval Warfare_ (2005)
* _Life in a Medieval Castle_ (2010)