A follow-up to the best-selling A Discovery of Witches finds Oxford scholar and reluctant witch Diana Bishop and vampire geneticist Matthew Clairmont in Elizabethan London, where Diana seeks a magical tutor and Matthew confronts elements from his past at the same time the mystery of Ashmole 782 deepens.

"A Penguin Book Fiction"--backcover

Woodstock : the old lodge -- Sept-Tours and the village of Saint-Lucien -- London : the Blackfriars -- The Empire : Prague -- London : the Blackfriars -- New world, old world -- Libri personae : the people of the book.