1808. While Europe burns and the Napoleonic Wars set the world aflame, the HMS Fortitude patrols the sea lanes of the South Pacific, harrying enemies of the British Crown. The Fortitude's captain sets his sights on a Spanish galleon weighted down with a fortune in gold and spices, but Lieutenant Hieronymus Bonaventure thinks the prize not worth the risk. In the midst of Battle the ships are driven apart by storms and far into unknown seas. The galleon and her treasure are lost in the tempest and soon Bonaventure and the rest of the Fortitude's crew find themselves aground on an island in uncharted waters, their ship badly damaged. Whilst they struggle to rebuild their vessel an encounter with the island's natives leads to a discovery of a dark and terrible secret that lurks behind the island's veneer of beauty...