The Chronicles of Vladimir Tod: Twelfth Grade Kills

As a teenage vampire, Vlad has spent the last four years trying to handle the pressures of school while sidestepping a slayer out for his blood. Now he's a senior, and in this final, action-packed book in the series, Vlad must confront the secrets of the past, unravel the mystery of who he really is, make decisions about his future, and face his greatest enemy. It's a senior year that totally bites.