I picked this book up on spec at the bookstore, not being at all familiar with the author. It was a lucky choice. I think I found it in the Fantasy section, but I'd categorize it as New Adult Fantasy Mystery. It's got that Middle-ages fantasy feel that allows the characters to be young in years but more mature in roles/behaviours than you might write into a contemporary story, and, of course, there is the magic. But there is also a strong Who-Done-It mystery (locked room, at one point!) serial killer plot that keeps you guessing until the very end. The characters are well-rounded , and the world is fully imagined and integrated into the story. I'm hooked on this series and will go find Book 2.