Enid Blyton's much-loved classic series, packed full of adventure and mystery.

A mysterious trip to the desolate northern isles leads to another exciting adventure for Philip, Dinah, Lucy-Ann and Jack. Bill is kidnapped, and the children are marooned far from the mainland. Will they rescue Bill in a dangerous game of hide-and-seek with an unknown enemy?

Perfect for fans of the Famous Five looking for their next adventure.