Pedro the Enigma

This is a mystery novel about a charismatic young man who gets involved in a witches coven. At the same time he appears to have an uncanny grasp of a certain history of ancient Britain about the Celts and its mythology. Unfortunately he is apparently killed in a car accident on the coast of Wales and his body likely washed out to sea. A local detective becomes involved and is led by various characters on a twisted search for the truth which leads back to North America. Perhaps Pedro is not dead after all. There seems to be some connection to past lives in the ancient past.