Christopher decides he wants to find out who killed Wellington, the dog, but Ed gets angry and tells him to keep his nose out of other people’s business. Christopher doesn’t understand. When he comes downstairs later, his father is crying.
Christopher reveals that his mother Judy has been dead for two years. He recalls how his father told him his mother was in hospital with a heart problem.
Christopher decides what kind of day he will have according to the colors of the cars he sees on the way to school. He argues this is a good way of ordering the world. He explains that he is very observant and also very good at math and physics. His teacher Siobhan encourages him to write about finding Wellington and so he decides to...