In this tale of passion and obsession, Diana Bishop, a young scholar and the descendant of witches, discovers a long-lost and enchanted alchemical manuscript deep in Oxford's Bodleian Library. Its reappearance summons a fantastical underworld, which she navigates with her leading man, vampire geneticist Matthew Clairmont. Harkness has created a universe to rival those of Anne Rice, Diana Gabaldon, and Elizabeth Kostova, and she adds a scholar's depth to this riveting story of magic and suspense. And the story continues in Book Two, Shadow of Night.