Fairy Hound

From publisher blurb: No hound Pwyll had ever seen was the color of these: a dazzling, shining white with red ears. — The Mabinogion Fairy hounds are known by many names, including cu sidhe in Ireland, cu sith in Scotland, and cwn annwn in Wales. They are the guard dogs and hunting dogs of the greater faeries: those of human stature.