Timothy Knapman is both writer and playwright and was cast adrift on a boat made of books when he was very small, but made his way to Surrey where he now lives. He is the author of Mungo and the Picture Book Pirates and Mungo and the Dinosaur Island as well as the smash hit Dinosaurs in the Supermarket.
Sam Lloyd is the creator of the popular picture book character Mr Pusskins and a hugely successful puppet monster series, launched with the publication of Calm Down, Boris. Her books have sold more than half a million copies in the UK. Captain Brainwave is her first book for HarperCollins. She lives in Brighton with her partner, their son Ozzy and an enormous ginger cat.