written by Cressida Cowell ; illustrated by Neal Layton. written by Cressida Cowell ; illustrated by Andy Ellis. written by Martin Waddell ; illustrated by Jill Barton. written by Delia Huddy ; illustrated by Emily Sutton. Jenny Oldfield ; illustrated by Neal Layton. written by Nicola Baxter ; illustrated by Ken Morton. written by Antonia Barber ; illustrated by Nicola Bayley. written by Dick King-Smith ; illustrated by Jill Barton. written by Jillian Powell ; illustrated by Jim Eldridge. by Michael Rosen ; illustrated by Neal Layton.