Helen Moss ; illustrated by Leo Hartas. illustrated by Leo Hartas. Caroline Moss ; illustrated by Sinem Erkas. Helen Martin ; illustrated by Anil Tortop. illustrated by Leo Hartas by Martin Waddell ; illustrated by Leo Hartas. Illustrated by Leo Hartas Stephen Moss ; illustrated by Laurie Campbell. Helen Cresswell ; illustrated by Ruth Rivers. Helen Dunmore ; illustrated by Simone Lia.