Christopher is an autistic teenager who is mathematically gifted. His family is a mess, partly because raising a challenging child put strains on a marriage. When the dog across the street is murdered, Christopher tries to figure out the murderer, even though his father does not approve. Christopher's reasoning and mathematical skills sometimes complicate his search and sometimes prove successful.
When Christopher's father lies to him, Christopher feels he has to find a new place to live. How can he trust again? Who can he trust?
From reading this book, I learned about the difficulties of being autistic from Christopher's perspective and from his partents' perspective. From another series of books about Joey Pigza by Jack Gantos, I learned about the feelings of a person with hyperactive syndrome. From both books I learned that loving fathers can do wrong things for their children.