From Frank Cottrell Boyce--the beloved, award-winning, New York Times-bestselling author of Millions and Cosmic--comes a hilarious, heartbreaking, and completely original middle grade novel about a young boy who turns...green.

Rory Rooney likes to be prepared for anything. That sort of planning pays off when you're the smallest kid in your class. Rory is even prepared (mostly) for Tommy-Lee, his nemesis, who starts most days by throwing Rory out of the back of the school bus. Don't be scared, his favorite book says, be prepared. And Rory...