Christopher John Francis Boone knows all the countries of the world and their capitals and every prime number up to 7,057. He relates well to animals but has no understanding of human emotions. He cannot stand to be touched. And he detests the color yellow.

This improbable story of Christopher's quest to investigate the suspicious death of a neighborhood dog makes for one of the most captivating, unusual, and widely heralded novels in recent years.

After stumbling upon his neighbor's dog, Wellington, impaled on a garden fork and being blamed for the killing, fifteen-year-old Christopher John Francis Boone, an autistic savant obsessed with Sherlock Holmes, decides to track down the real killer and turns to his detective hero to help him with the investigation, which brings him face to face with a family crisis.