Lots of things are mysteries. But that doesn't mean there isn't an answer to them

This is Christopher's murder mystery story. There are also no lies in this story because Christopher can't tell lies. Christopher does not like strangers or the colours yellow or brown or being touched. On the other hand, he knows all the countries in the world and their capital cities and every prime number up to 7507. When Christopher decides to find out who killed the neighbour's dog, his mystery story becomes more complicated than he could have ever predicted.

BACKSTORY: Meet the author and learn about the background to Christopher's story.

Mark Haddon was born in 1962 in Northampton. He has done a variety of different jobs including working with disabled people, drawing illustrations and comic strips, writing and working as a painter. Haddon has written a whole range of different things including books for children and adults, poetry, TV screenplays and a play for the theatre.

Mark Haddon wrote and illustrated his first picture book at the age of twenty-five. Since then he has written many picture books including the Agent Z series and the Baby Dinosaur series. The Curious Incident of the Dog in the Night-Time was published in 2003 and it was the first book ever to be published simultaneously in two editions one for adults and one for children. The book was instantly a huge success and has won a whole host of prizes. Mark has won two BAFTAs for his work in writing TV screenplays for children and adults. Hes also published two more books for adults.

He lives in Oxford with his wife and two sons.