Harkness, Deborah E., 1965- A discovery of witches / Deborah Harkness. - London : Headline, 2011. - 579 p. ; 24 cm. ISBN: 9780755374038 (pbk.) 9780755381173 (pbk.) Subjects--Topical Terms: Vampires--Fiction.Witches--Fiction.Science and magic--Fiction. Dewey Class. No.: 813.6 / HAR 2011