Deryni novels
The Deryni novels are a series of historical fantasy novels by the American author Katherine Kurtz.
The first novel in the series to be published was Deryni Rising in 1970, and the most recent, Childe Morgan, was published on December 5, 2006. As of May 2007, the series consists of five trilogies (one not yet completed), one stand-alone novel, one short story, two collections of short stories, and two reference books.
Most of the series is set in the land of Gwynedd, one of the fictional Eleven Kingdoms (portions of King Kelson's Bride take place in the rival kingdom of Torenth). Gwynedd itself is a medieval kingdom that roughly parallels 10th, 11th, and 12th century England, Scotland, and Wales with a powerful Holy Church (based on the Roman Catholic Church), and a feudal government ruled by a hereditary monarchy. The population of the Eleven Kingdoms includes both humans and Deryni, a race of people with inherent psychic and magical abilities. Throughout the course of the series, relations between humans and Deryni result in ongoing political and religious strife that is often interconnected with the individual lives of the main characters.