A Discovery of Witches by Deborah Harkness
"Diana Bishop is the last of the Bishops, a powerful family of witches, but she has refused her magic ever since her parents died and, instead, has turned to academia. When a new project takes her to Oxford, she is looking forward to several months in the Bodleian, investigating alchemical manuscripts. Her peace is soon interrupted when one of the books she finds in the library turns out to have been lost for 150 years and is wanted desperately by the witch, daemon, and vampire communities so desperately that many are willing to kill for it. But the very first creature to approach her after her discovery is Matthew, a very old vampire and fellow scholar, who seems only to want to protect her. Harkness creates a compelling and sweeping tale that moves from Oxford to Paris to upstate New York and into both Diana's and Matthews complex families and histories. All her characters are fully fleshed and unique, which, when combined with the complex and engaging plot, results in one of the better fantasy debuts in recent months."
~ Booklist (starred review)
Excellent read! Also available as Book on CD.