Liar - Justine Larbalestier

Micah is a liar. That's the one thing she won't lie about. Over the years, she's duped her classmates, her teachers, and even her parents. But when her boyfriend Zach dies under brutal circumstances, Micah sets out to tell the truth. At first the truth comes easily-because it is a lie. Other truths are so unbelievable, so outside the realm of normal, they must be a lie. And the honest truth is buried so deep in Micah's mind even she doesn't know if it's real.

The ultimate unreliable narrator takes readers on a thrill ride in this highly acclaimed novel. Prepare to grasp for truth until the very last page.