Does it warn you about what to do if a shark comes up out of the loo while you are sitting on it? Yes it does. And how to find out if your granny is a robot? That too. And what to do if a volcano erupts underneath your house? This book deals with these questions.

David O'Doherty: is a stand-up comedian, writer and regular guest on television shows such as QI, Have I Got News For You and Would I Lie To You? He has written two theatre shows for children, including one where he fixed their bicycles live on stage.