Gaia Stone is one of the unfortunate ones. She and her parents live outside the walls of the Enclave in poverty and need, while those who live on the inside enjoy all the resources that remain after a horrific environmental meltdown. In exchange for food, water, and electricity, the outsiders must surrender their newborn children to the Enclave. Like her mother, Gaia is a midwife. It is her job to "advance" the first three physically perfect infants she delivers every month. And Gaia performs her task dutifully, thinking that she's sending these lucky children to a better life.But when her parents are arrested and taken behind the walls, Gaia begins to question everything she has been taught to believe. Which leaves her with only one option: to break into the Enclave and rescue them. But will Gaia find her parents? Even if she does, will they ever get out alive? And what exactly is the Enclave doing with all those babies? Join this powerful post-apocalyptic adventure in a world where everyone is vulnerable if they love someone.