Neal Shusterman

Citra and Rowan have disappeared. Endura is gone. It seems like nothing stands between Scythe Goddard and absolute dominion over the world scythedom. With the silence of the Thunderhead and the reverberations of the Great Resonance still shaking the earth to its core, the question remains: Is there anyone left who can stop him? The answer lies in the Tone, the Toll, and the Thunder. -- from Amazon.

Three teens band together in order to sway the government to repeal all rulings in support of a procedure in which unwanted teenagers are captured and are unwound into parts that can be reused for transplantation.

The Second Civil War was fought over reproductive rights. The chilling resolution: Life is inviolable from the moment of conception until age thirteen. Between the ages of thirteen and eighteen, however, parents can have their child "unwound," whereby all of the child's organs are transplanted into different donors, so life doesn't technically end. Connor is too difficult for his parents to control. Risa, a ward of the state, is not enough to be kept...

After the destruction of the Graveyard, Connor and Lev are on the run, seeking a woman who may be the key to bringing down unwinding forever while Cam, the rewound boy, tries to prove his love for Risa by bringing Proactive Citizenry to its knees.

"In a world where disease has been eliminated, the only way to die is to be randomly killed ('gleaned') by professional reapers ('scythes'). Two teens must compete with each other to become a scythe--a position neither of them wants. The one who becomes a scythe must kill the one who doesn't"--