They’ve escaped the Breeders, yet their journey has just begun.
Riley and Clay are once again on the run from the Breeders. The group may have escaped the deranged experiments at the hospital, but as one of the world’s last free women, Riley can never be safe. On the road back home, Riley and her crew are captured by a band of savage men. Their destination: the Citadel, run by a bizarre religious prophet named the Messiah. Somehow he knows their secrets. He wants them to join his group of Believers, but only if they’ll drink the baptismal water and swear allegiance.
The problem is that there’s something wrong with the water. Something wrong with the people. And there’s human moaning coming from the bottom of a dark crevasse that no one wants to talk about. If they can’t figure out what’s going on, Riley and everyone she loves could become a Believer forever.

Sixteen-year-old Riley Meemick is one of the world’s last free girls. When Riley was born, her mother escaped the Breeders, the group of doctors using cruel experiments to bolster the dwindling human race. Her parents do everything possible to keep her from their clutches-moving from one desolate farm after another to escape the Breeders’ long reach. The Breeders control everything and they’re hunting Riley.
When the local Sheriff abducts the adult members of her family, Riley and her brother Ethan are left to starve. Then Clay arrives, the handsome gunslinger who seems determined to help to make up for past sins. As Riley’s affection for Clay grows she wonders can she trust Clay with her secret and risk her freedom? The three embark on a journey across the scarred remains of New Mexico. When Riley is forced into the Breeder’s hospital, she learns the horrible fate of her mother-a fate she’ll share unless she can find a way out.