Thalli is different than others in The State. She feels things. She asks questions. And in the State, this is not tolerated. The Ten scientists who survived the nuclear war that destroyed the world above believe that emotion was at the core of what went wrong—and they have genetically removed it from the citizens they have since created. Thalli has kept her malformation secret from those who have monitored her for most of her life, but when she receives an ancient piece of music to record as her community’s assigned musician, she can no longer keep her emotions secreted away.