Windsor Great Park - haunted by Herne the Hunter who calls the Yell Hounds to hunt souls, and is supposed to appear when the thoughts of man turn to murder. Cerian Pritchard - a young girl on her first visit to Windsor who begins to see the spirits of the trees and the lake as her magic begins to awaken. Together these two unlikely people must battle the forces of the Dark - Ceri is the last of the Ancient Ones and a Guardian of the Light - and according to prophecies made over a century ago, when she came to Windsor she would be the Hunter's saviour.