- "Last Voyage of the Transvaal" (1981)
- "Jack of Fables" (2006)
Non-Fiction:
- "The Desert Fathers: Monks and Ascetics in Early Christianity" (1990)
- "Early Christian Saints" (1992)
- "The Mystic Christ: Saints, Ascetics, and Heretics in Ancient Christianity" (1994)
- "The Saints of Egypt" (1998)
- "A History of Christian Spirituality: From the First Apostles to the Present" (2005)
- "Pilgrim's Guide to the Holy Land: A Spiritual Journey" (2006)