Leon Gray is a highly-experienced children's book author who has written titles on many subjects, from science and geography to world issues. He lives in Scotland.
Sarah Edmonds is an illustrator and designer who has worked on projects for publishers and art organisations such as Roald Dahl 100, Snowdonia National Park and National Museum Wales. She also produces her own collections of prints and gifts. Her illustrations are created using chunky crayons, paint, pastels and ink alongside digital techniques. Sarah is currently based in Sussex.