BOOK SUMMARY The courious Incident of The Dog in The Night-time The Curious Incident of the Dog in the Night-Time is the story of a 15 years old boy, Christopher Boone, who is really good at Maths but has difficulties understanding people. The play opens with the discover of Cristopher of his neighbour’s dog dead. Despite his father, Ed, warning Christopher not to get involved, Christopher decides to investigate the death of the dog. While he’s investigating, one of his neighobur told him taht his mother is alive and she live as well in London. He also discovers that the killer of the dog is his father. Christopher feels that his father is a murderer, who he cannot trust. He can no longer live with him and so he bravely travels to London to find his mother. Cristopher find difficult setting into his new life in London, so he and his mother returs to Swindon. Over there he takes his level A-Maths exam. The play ends with him passing the exam and the realisation that he can do anything he puts his mind to.