In book thirteen, the Famous Five find out about something dangerous out in Mystery Moor. They ll have to risk the treacherous mists and follow the trail if they want to find what s lurking in the shadows.

Do they know what they ve let themselves in for?

This 70th anniversary edition features the text from the Classic edition. Its cover has been illustrated by Peter Bailey, but there are no inside illustrations. All anniversary editions, each illustrated by a different artist, benefit the House of Illustration, the world s first dedicated home for the art of illustration (houseofillustration.org.uk).