Divergent book coverColleen of Fiction/AV/Teen Services recommends Divergent by Veronica Roth:

Divergent takes place in a future dystopian Chicago. In this society, there are five factions that a person must belong to. We meet Tris on her sixteenth birthday when she has chosen to leave her home faction to become one of the Dauntless. With her induction to this new faction comes a series of tests to determine if she is truly worthy to become one of the Dauntless faction. What no one knows, however, is that Tris is actually a divergent – a person who can exist successfully in any of the factions. This trait is a dangerous one, since it threatens those in power, and Tris must keep it hidden or it could cost her life.