written by Cressida Cowell ; illustrated by Andy Ellis. written by Cressida Cowell ; illustrated by Neal Layton. written by Jillian Powell ; illustrated by Jim Eldridge. written by Sheila McCullagh ; illustrated by Tony Morris. written by Louise John ; illustrated by Andy Elkerton. written by Loredana Cunti ; illustrated by Stacy Curtis. written by Maureen Fergus & illustrated by Elina Ellis. written by Sheila McCullagh ; illustrated by Jon Davis. written by Anita Ganeri ; illustrated by Maddy Vian. written by Jessica Anderson ; illustrated by Leah-Ellen Heming.