LIAR (by Justine Larbalestier)

It's easy to believe that Micah's a compulsive liar, especially after she starts revealing all the lies she's told (like pretending to be a boy during her freshman year of school). It's harder to trust her when she says that she had nothing to do with her boyfriend's murder -- or that she is now capable of telling the whole and complete truth. Readers won't know what to think when she tells them she's actually a werewolf -- especially when police discover that Zach was eviscerated in New York City's Central Park by something that looks like dogs.

This book is simply thrilling: Is Micah actually a werewolf, or is she, as one teacher theorizes, simply a confused girl who's "rejecting [her] own body" by pretending to be something more masculine? Either way, did she kill Zach -- and was it intentional or just something that happened in the heat of the moment?  Not knowing the answers is, of course, much of the fun, and readers will love racing through this fast-paced book trying to sort out the truth. Micah's non-linear storytelling gives readers more to sort out, as do the various theories about the origin of werewolves.