Sixteen-year-old midwife Gaia Stone is in the wasteland with nothing but her baby sister, a handful of supplies, and a rumor to guide her when she is captured by the people of Sylum, a dystopian society where she must follow a strict social code or never see her sister again.

After defying the ruthless Enclave, surviving the wasteland, and upending the rigid matriarchy of Sylum, Gaia Stone now faces her biggest challenge ever. She must lead the people of Sylum back to the Enclave and persuade the Protectorat to grant them refuge from the wasteland. In Gaia's absence, the Enclave has grown more cruel, more desperate to experiment on mothers from outside the wall, and now the stakes of cooperating or rebelling have never...

Rosie Sinclair, who attends an elite arts school where students are contestants on a high stakes reality show, skips her sleeping pill one night and discovers that the school is really a cover-up for the lucrative and sinister practice of dream harvesting.

In a future world baked dry by the sun and divided into those who live inside the wall and those who live outside it, sixteen-year-old midwife Gaia Stone is forced into a difficult choice when her parents are arrested and taken into the city.