A Discovery of Witches (All Soul's Trilogy, Book 1), Deborah Harkness
When historian Diana Bishop opens a bewitched alchemical manuscript in Oxford’s Bodleian Library it represents an unwelcome intrusion of magic into her carefully ordinary life. Though descended from a long line of witches, she is determined to remain untouched by her family’s legacy. She banishes the manuscript to the stacks, but Diana finds it impossible to hold the world of magic at bay any longer.
One part fantasy adventure, one part romance, Kelly found this series un-put-downable!!