These books may have been marketed to the teens in your life, but they're anything but adolescent!
At the end of a civil war over reproductive rights, abortion is declared illegal in America. However, parents can decide to have their teenage children "unwound" - essentially harvested for parts. Connor's parents sign him over for unwinding because he's a delinquent. Risa is a ward of the state and not quite talented or valuable enough to be worth saving. Lev is a "tithe," or child born for the specific purpose of being unwound. Together, the three of them try to escape their fate.