In Elizabethan London, Diana and Matthew must find a witch to tutor Diana and to find traces of Ashmole 782, but as the net of Matthew's past tightens around them they embark on a very different journey, one that takes them into the heart of the fifteen-hundred-year-old vampire's shadowed history and secrets. For Matthew, time travel is no simple matter; nor is Diana's search for the key to understanding her legacy.