Deryni Checkmate (Katherine Kurtz) - [Chronicles of the Deryni, The 02]

The number of Deryni was small, for they had been hounded for generations and kept their identities secret. Those who managed to retain their arcane powers concealed their background--for bitter persecution once again swept the land of Gwynedd, inspired by a raving fanatic sworn to destroy all Deryni in a final bloodbath.