'Det mystiske hundemord' resume

The curious incident of the dog in the nighttime – Summery

One night, Christopher Boone finds his neighbor's dog, Wellington dead in her front yard, with a pitchfork sticking out of it. Christopher wonders who killed it, and decide to write a novel where he tries to figure it out, like a murder mystery novel.

Christopher's neighbor, Mrs. Shears, finds him with her dog, she calls the police, and Christopher has to spend some hours in jail. His father comes to get him, and tells Christopher to not investigate the dog's death. So Christopher tries to thinks of all kinds of ways to interpret his father's, so he still can do his detective work.

He starts asking around in his neighborhood to see if anyone knows anything about Wellington’s death. He agree with him self that since Mr. Shears left his wife two years ago, he perhaps hate her, and killed her dog to make her sad. But when Christopher's father finds out that he's been asking people about the dog, he makes him promise he'll stop, again Christopher promises.So, of course, Christopher continues talking to one of his neighbors, who tells him that, his mother and Mr. Shears were having an affair before he left Mrs. Shears. But Christopher doesn’t understand, and tells that his mother died two years ago, of a heart attack.