Shattered mirror

Sarah Vida is a witch and a vampire hunter -- and a loner. Christopher Ravena is a vampire trying to pass as a normal high school student who wants to know Sarah better. Drawn to him despite her better judgment, Sarah's forced to admit that there's room for gray in her otherwise black-and-white world of good versus evil -- until she meets Nikolas, Christopher's twin and one of the most hunted vampires in history.