* King Arthur Trilogy:
* King Arthur, King of Summer (1988)
* King Arthur, Lord of Avalon (1989)
* King Arthur, Excalibur Unleashed (1997)
* William Marshal Series:
* Lord of Darkness (1980)
* William Marshal: Marshal to Henry II (1992)
* William Marshal: Champion of Henry II (1992)
* William Marshal: Defender of Henry III (1995)
* William Marshal: Warrior of God (1999)
* Dark Ages Roman Britain Trilogy:
* Warriors of the Wasteland (1980)
* Wolf of Shadows (1984)
* Lord of a Thousand Nights (1982)
* Knights Hospitaller Series:
* Soldier in Zion (1979)
* Siege Perilous (1982)
* Battle Charge (1984)
* Knight Crusader (1984)
* Saracen's Tower (1988)
Standalone novels:
* The Tower That Was London (1989)
* Knightsbridge (1994)