Charles Watermere, Archie Erinac, and the family return for a third adventure in Merashire. When a serious health scare prompts a seaside trip for rest, relaxation, and recuperation, the Watermere family and friends head to the fabulous coastal city of Heronpool, where not everything is plain sailing as mystery forces their holiday to change tracks. Pack your bags, book your train tickets, and return to Merashire, where you'll feel the sun on your face, the wind in your hair, and the sand between your toes while getting to know your favourite characters better, as well as meeting interesting new ones.