Shadow of Night

Shadow of Night is a 2012 historical-fantasy novel by American scholar Deborah Harkness, the second book in the All Souls trilogy. As the sequel to the 2011 bestseller, A Discovery of Witches, it follows the story of Diana Bishop, a historian who comes from a long line of witches, and Matthew Clairmont, a long-lived vampire, as they unlock the secrets of an ancient manuscript. Diana and Matthew travel back in time to 16th century London during the Elizabethan era.