Kjartan Poskitt ; illustrated by Trevor Dunton. Kjartan Poskitt ; illustrated by Philip Reeve. Kjartan Poskitt ; illustrated by Daniel Postgate. Kjartan Poskitt ; illustrations by Geraint Ford. Kjartan Poskitt and [illustrated by] Alex Willmore illustrated by Trevor Dunton. John Escott ; illustrated by Trevor Stubley illustrated by Trevor Dunton Illustrated by Trevor Dunton Mark Haddon ; illustrated by Peter Sutton.