The sands of Shark Island.

Ben and Fee MacTavish and their schoolmates on board the School Ship Tobermory are headed thousands of miles from their base in Mull to a small island in the Caribbean. They will learn extraordinary details about Captain Macbeth's past and come face to face with modern-day pirates. The students and crew aboard the Tobermory will have to band together and use their wits to escape harm and overcome the evil pirates.