The Curious Incident of the Dog in the Night-Time is a mystery novel written by Mark Haddon. The story is narrated by Christopher Boone, a 15-year-old boy with autism spectrum disorder, who sets out to solve the mystery of his neighbor's murdered dog. As Christopher delves deeper into the investigation, he uncovers surprising truths about his own life and the world around him. Haddon's insightful portrayal of Christopher's unique perspective and his exploration of themes such as truth, trust, and understanding make this book a thought-provoking and compelling read.