A Discovery of Witches by Deborah Harkness

Wow! Witches, vampires, daemons and humans inhabit the world in a delicate balance between the magical and non-magical world in this debut novel. Most of the  humans don't realize there are magical beings as they make every attempt to "fit-in". When historian Diana Bishop,  opens a bewitched alchemical manuscript in Oxford’s Bodleian Library, she attracts all sorts of attention -- from the magical creatures who fear the status quo will be disturbed by the information in this book.  And so begins a rousing, fascinating story that becomes a love story when the vampire, Mathew Clairmont and witch, Diana, go against the traditions and magical taboo of inter-specie relationships.

 Alas, it's another trilogy with the second book, Shadow of Night to be released in the summer, 2012. I couldn't put it down and am now eager for the next one. The author has written several non-fiction books previously and had done extensive research for this book -- lots of history involved in the story too.

If you liked the Twilight series, you'll love this one also and find it very well written.. It's a wildly fascinating read. The prose is fluid and I had the impression of witnessing the events as they were happening.