Lee, Fonda.
EXO
New York : Scholastic, 2017
IL 5-8
ISBN 9780545933438

Donovan is accidentally captured in a what might become a war with an alien race. As a child, he went through a process that gave his skin a hardened flexible armor, and he’s always wanted to be a soldier. He gets along with the aliens who have colonized Earth, and lived a life of privilege since his father is the planetary political leader. But at age 17, he’s captured by rebels, and starts to see the world in a new way. His change is helped by his attraction to a pretty (and fierce) rebel and leads him to question what he’s been taught and then to disobey orders. (Jodie Purcell, Bishop Blanchet High School
 https://evergreenbookaward.org/)