The All Souls Series Book 7

Deborah Harkness (born 1965) is an American scholar, novelist and wine enthusiast, best known as a historian and as the author of the All Souls Trilogy, which consists of The New York Times best-selling novel A Discovery of Witches and its sequels Shadow of Night and The Book of Life.

Harkness grew up near Philadelphia, Pennsylvania, the daughter of an American-born father and a British-born mother. She is a graduate of Mount Holyoke College (B.A., 1986), Northwestern University (M.A., 1990), and the University of California, Davis (Ph.D., 1994). Harkness also studied abroad at Oxford University. She is a well-regarded historian of science and medicine, as well as having studied alchemy, magic and the occult.