Forget about Edward and Jacob
If you can't take one more second of the whole Team Edward/Team Jacob debate, in fact, even if you hate vampire stories -- this is one vampire story you're sure to love. Mel is not a huge fan of vampires, but her best friend, Cathy, is in love with everything old and dead. This hasn't been a very big problem in their friendship, until a vampire shows up in their local history class and Cathy falls head over heels in love. Throw in a missing father, his distraught family, and a human raised by vamps and you have an exciting (and funny) story that is a definite hit.
For more fantastic books (none about vampires) from Justine Larbalestier or Sarah Rees Brennan, check out:
How to Ditch Your Fairy by Justine Larbalestier
Liar by Justine Larbalestier
The Demon's Lexicon by Sarah Rees Brennan
Unspoken by Sarah Rees Brennan