When Bob accidentally time travels and comes face to face with his future self in the middle of a disastrous alternative reality, he knows has to do... something. An evil genius has created a smile-operated camera that turns people into zombies! Now it's up to Bob to fix the present, to change the future, and save the whole world! If only he could figure out how... Perfect for reluctant readers and fans of David Solomons, David Baddiel and Greg James & Chris Smith.