The third book in the award-winning, best-selling dystopian series.

They've escaped the Breeders.

They've broken out of the Citadel.

Now, after all they've been through, Riley, Clay, and Ethan know one thing for sure: nothing tastes sweeter than freedom. And no one can rest easy with Auntie Bell in bondage. The group journeys home to rescue her and liberate Clay's town from the cruel Warden. But when an ally betrays them, they must face the very enemy they've been trying to avoid.

Captured and separated, Riley is sold to a slave-owner who uses human beings for sport, while Clay and Ethan become the latest in a series of lab rats to be poked and prodded. As a slave, Riley conceals her identity to survive among the other benders, but it's only a matter of time before a dangerous job takes her life. Clay and Ethan find themselves a war zone between a madwoman and marauders. And the odds don't look good.