The Heirs of Saint Camber

Books
January 918-August 918: The Deryni desperately try to survive the persecutions. June 921-October 922: Javan Haldane struggles to secure his throne. May 928-December 928: Rhys Michael Haldane must defend his crown from a foreign invader.
 * The Harrowing of Gwynedd (1989)
 * King Javan's Year (1992)
 * The Bastard Prince (1994)