The Curious Incident of the Dog in the Night-Time

I am close to the end of the book, Christopher has found out that his mother is still alive and that his father has been lying to him. His father told him that his mother had died of a heart attack but really she left him for another man who is also their neighbours husband. The mother has been writing Christopher letters everyday but the father has kept them hidden. So after feeling betrayed by his father, Christopher decided to go and find his mother, which is really challenging as he has Aspergers Syndrome and doesn't know how to communicate with other people. I am really excited to find out about what happens at the end of the book.