The Harrowing of Gwynedd

In an alternate Middle Ages, a new chapter begins in the magnificent fantasy saga of the Deryni, as the magical race faces annihilation by royal enemies and a radical church
These are the darkest days for the Deryni of Gwynedd, the magical race that once ruled this medieval kingdom but now find themselves despised and hunted by the governing regents following the death of King Cinhil. Dead also is Camber of Culdi, who served as the Deryni's most faithful friend in the royal court. With young King Alroy too immature and weak to rule effectively, no one holds the power to halt the reign of genocidal terror that sweeps across the land—not even Prince Javan Haldane, Alroy's twin, who recognizes the perfidy of the regents and religious zealots hovering around his royal brother. But there is an equally distressing concern for the surviving children of Camber, whose body remains uncorrupted weeks after his death, suggesting that his soul may be trapped somewhere...