* _The Reluctant Knight_ (1970)
* _Rebellion in the Midlands_ (1980)
* _The Book of Kells_ (1984)
* _The King's Daughter_ (1988)
* _The Long Sword_ (1991)
* _The Forest King_ (1994)
* _The Knights of Camelot_ (1997)
* _The Shadow of the Raven_ (2000)
* _The Last of the Druids_ (2003)
* _Irlannin leijona_ (2006)
Tietokirjallisuus:
* _The Story of Ireland_ (1982)
* _Vikings in Ireland_ (1988)
* _The High Kings of Ireland_ (1994)
* _The Celtic World_ (1998)
* _Arthurin aika_ (2001)
* _Irlannin historia_ (2004)
* _The Tudors in Ireland_ (2007)
* _Stuartit Irlannissa_ (2010)
* _Hannoverilaiset Irlannissa_ (2013)
* _Britiläiset Irlannissa_ (2016)