Three children are spending their summer on a wild Scottish island Fraser is desperate for adventure; Hayley is fed up she's even there; while Dunny spends his days staring out to sea He hasn't said a word in years But everything changes with the discovery of two bodies on the beach a whale & a man Fraser & Hayley see a mystery-adventure to be solved but Dunny is inconsolable & in the end it will take someone who listens to the sea to put it right