By Mark Haddon
One night, the corpse of Wellington, a little white dog, appears in the park with a fork pinned. Christopher Boone, a fifteen year-old boy, is decided to find the murderer. For that purpose, he begins an investigation to determine who the killer is.
Christopher is a boy with an outstanding interest in maths, however he is unable to understand people. He never catches irony or jokes.
He decides to write in a book his findings about Wellington's killing.
His father, worried about him, finds his manuscript and destroys it. This leads Christopher to argue with his father. After the argument, he finds some letters written by his mother who he was told she was dead of a stroke. Moreover, his inquiries leads him to the conclusion that Wellington has been killed by his father.
This discovery, and the argument at home, makes him go find his mother who lived in London. After a few hours travelling by train he arrives at his mother's home.
In the mean time, due to his interest in mathematics, he passes the A-level test and enters in the University.
