Helen Moss ; illustrated by Leo Hartas. Caroline Moss ; illustrated by Sinem Erkas. illustrated by Leo Hartas. Helen Martin ; illustrated by Anil Tortop. Karen Hesse ; illustrated by G. Brian Karas. by Martin Waddell ; illustrated by Leo Hartas. illustrated by Leo Hartas Illustrated by Leo Hartas Kirsteen Robson ; illustrated by Gareth Lucas. by Lenny Hort ; illustrated by G. Brian Karas.