Join Julian, Dick, George, Anne and Timmy the dog in their third adventure, where they discover strange occurrences on George's home island.

When the Famous Five are left in the care of the mean cook and her son, the Five decide to run away to Kirrin Island to escape. But, when they get to the island they discover what initially appears to be a smuggling attempt.

That is, until they discover a little girl within the group! It's up to them to save the girl and find out what's going on.