by Mark Sperring ; illustrated by Maddie Frost. Mark Sperring ; illustrated by Maddie Frost. Mark Sperring ; illustrated by Sam Lloyd. Billy Coughlan ; illustrated by Maddie Frost. Mark Sperring and Maddie Frost. written by Mark Sperring ; illustrated by Layn Marlow. illustrated by Maddie Frost. by Marie Fordacq ; illustrated by Marion Puech. by Mara Rockliff ; illustrated by Simona Ciraolo. by Mary Man-Kong ; illustrated by Viviana Garofoli.