Harmony is about an autistic spectrum child named Tilly Hammond. She has a younger sister named Iris and her parents are Alexandra and Josh. Her parents are nearly at the end of their rope with regard to controlling Tilly's behavior. They meet a man named Scott Bean, who invites them to help him set up a camp in New Hampshire for families with special needs children. The story is told from the perspective of Alexandra and Iris, with some chapters from Tilly. The novel ends with an interesting twist. The novel is a good insight to families dealing with children with special needs.