Julian, Dick, Anne, George and Timmy the dog find excitement and adventure wherever they go in Enid Blyton's most popular series. 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 edition features the original cover art and inside illustrations by Eileen Soper.