Isn't Game of Thrones
a series of four books?
So I'll nominate Discovery of Witches
by Deborah Harkness. It's sort of a Twilight
It all begins with a lost manuscript, a reluctant witch, and 1,500-year-old vampire. Dr. Diana Bishop has a really good reason for refusing to do magic: she is a direct descendant of the first woman executed in the Salem Witch Trials, and her parents cautioned her be discreet about her talents before they were murdered, presumably for having "too much power." So it is purely by accident that Diana unlocks an enchanted long-lost manuscript (a book that all manner of supernatural creatures believe to hold the story of all origins and the secret of immortality) at the Bodleian Library at Oxford, and finds herself in a race to prevent an interspecies war. A sparkling debut written by a historian and self-proclaimed oenophile, A Discovery of Witches is heady mix of history and magic, mythology and love (cue the aforementioned vampire!), making for a luxurious, intoxicating, one-sitting read -from Amazon
I will third Wicked
and second The Voyage of the Minotaur