'As they turned a dark corner that lead them to a cave, someone leapt at them!'
This holiday the Five are leaving Kirrin Cottage to live in a lighthouse on Demon's Rocks. Many years ago, stolen treasure from ships wrecked on the rocks was hidden - never to be found. The Five are excited to explore the secret caves, but someone dangerous wants to reach the treasure first. Can the Five stop them before its gone for good?
This softback book written by Enid Blyton with inside illustrations by Eileen Soper was originally published in Great Britain in 1961. This edition was published in 2016.