As well as being a number one bestselling writer for adults, Matt Haig has won the Blue Peter Book Award, the Smarties Book Prize and been nominated three times for the Carnegie Medal for his stories for children and young adults. The first book in his festive series, A Boy Called Christmas, has been made into a feature film with an all-star cast. He has sold more than two million books in the UK and his work has been translated into over fifty languages.
Chris Mould went to art school at the age of sixteen and has been drawing ever since. He has produced work for theatre companies, film development, television and children's books. He has won the Nottingham Children's Book Award, the Swiss Prix Enfantaisie award and twice been shortlisted for the Kate Greenaway Medal. He lives in West Yorkshire with his family.