Our Missing Hearts by Celeste Ng

To what lengths would you go to protect your child? In Our Missing Hearts, Celeste Ng introduces us to Bird, a 12-year-old boy whose mother has left him and his father years earlier. His father disavows her and her poetry that is being used by resisters standing up against an authoritarian government in the United States. When Bird receives a mysterious letter, he goes on a journey to find his mother.