A delightful middle grade adventure by two-time Caldecott Medal winner Chris Raschka about good, evil, and cats. Generously illustrated with black-and-white illustrations. When a twelve-year old girl named Cleo and her cat, Muffin, become the newest members of PURR (Peace Urgently Requires Reasonableness), a secret society of cats fighting for peace, they aren't exactly sure what they're getting themselves into. Then, PURR...