Marcus Sedgwick ; illustrated by Pete Williamson. by Francesca Simon ; illustrated by Pete Williamson. illustrated by Pete Williamson. illustrated by Pete Williamson Michael Coleman ; illustrated by Gwyneth Williamson. by Jill Atkins ; illustrated by Gwyneth Williamson. Illustrated by Pete Williamson written and illustrated by Sarah Williamson. Elizabeth Singer Hunt ; illustrated by Brian Williamson. Mark Haddon ; illustrated by Peter Sutton.