Matt Ralphs worked as an editor for many years, and now writes children's non-fiction and middle grade fiction, often with a focus on history, myths and folklore. His dark adventure novels Fire Girl and Fire Witch were published by Macmillan Children's Books. He currently has non-fiction projects in development with Nosy Crow and Bonnier. He lives on the Grand Union Canal on a boat called Nostromo. Dieter Braun is a much-loved illustrator and children's book author from Hamburg, Germany. He is recognised for the distinctive geometric worlds he creates, with a touch of retro aesthetic.