Vampire's Promise: Book 1
by Caroline B. Cooney
Althea is a nobody who wants to be somebody. She wants to be noticed, to have friends, to be part of the popular crowd. Then she meets the vampire who lives in the circular tower in her new house. The vampire says that he can make her popular--more popular than she ever imagined she could be. All Althea has to do is agree to a simple deal. So simple a promise, but so evil.