The Mud and Slime Mysteries is Joel Stewart and Steve Roberts' first book collaboration. Previously to this they have collaborated on TV animation including Abney & Teal and BOT and the Beasties.
Joel has also illustrated for Julia Donaldson, Michael Rosen, Michael Bond as well as his own picture books.
Steve created DipDap and Twirlywoos for Ragdoll, which both won Children's BAFTAs. Before his work in television Steve was a freelance illustrator in comics.
