Mythology of the British Isles by Geoffrey Ashe
This book is planned on the pattern of Robert Graves's Greek Myths and Hebrew Myths. Each section deals with its topic first as presented in legend or story-telling or speculation. Then a commentary discusses the sources, the facts, the underlying ideas, the rehandling in subsequent writing. The time-span of the survey extends from prehistory to the 9th century AD. Geoffrey Ashe has also written King Arthur's Avalon - The Story of Glastonbury, Avalonian Quest and The Ancient Wisdom.