Autumn escaped a cult, but now she realizes she's fallen into another. Growing up in San Francisco's Centrist Movement, sixteen year-old Autumn Grace has always believed emotions--adrenaline, endorphins, even happiness--drain your Essence and lead to an early death. But her younger brother's passing and a run-in with a group of Outsiders casts her faith into question. Ryder Stone, the sexy, rebellious leader of the Outsiders, claims Essence drain is nothing more than a Centrist scare tactic -- and he can prove it. Autumn follows Ryder to his Community of adrenaline junkies and free spirits in...