This schools' edition of Mark Haddon's multi-award-winning novel adapted for the stage of the National Theatre by Simon Stephens is perfect for Key Stages 3 and 4. Christopher, fifteen years old, stands beside Mrs Shears's dead dog. It has been speared with a garden fork, it is seven minutes after midnight, and Christopher is under suspicion. He records each fact in the book he is writing to solve the mystery of who murdered Wellington. He has an extraordinary brain and is exceptional at maths,