Rain Reign by Ann Martin

Twelve year-old Rose Howard is obsessed with homonyms, prime numbers, and following rules.  Her obsessions make it difficult for her at school and frustrate her single father on a daily basis.  Her solace is her dog Rain, a name she picked because it has two homonyms – a very special trait.  When her father lets Rain out of the house in the midst of a hurricane, the dog doesn’t come back, throwing Rose’s world upside down.  As the days pass, Rose must deal with her anxiety and devise a plan to find Rain.  An amazing story that provides perspective on living with autism and one girl’s courage to face her challenges.  Perfect for fans of Wonder age 10+.