I really enjoyed this book, and I'm stingy with my compliments. The protagonist is a British Navy Captain, and he's between wars, drawing 1/2 pay. His last vessel sank, costing 70 lives. Although a court of inquiry exonerated him, the stigma hung around his neck like an albatross. His marriage was luke-warm, his wife even acted disgusted when his deformed hand (enemy cannonball injury) was exposed. He was still young, however, not wanting to be passed over for reassignment by younger captains with powerful political connections. Then he's given a clandestine assignment, and even though he's not commissioned to command a ship of the line he's happy. Crew assembled, provisions taken on, and off they go. Very nice correct use of nautical terms and period language, accurate summary of dicey political climate with France. He encounters raging storms, extremes of hot and cold environment, pirates, mutineers, sabatoge, and even the murder of a crewman. Eventually they reach the targeted uncharted island, discover the treasure (not what you'd expect), and somehow they make it back to London. We are left without complete finality, but we do know that life will again be good for this captain, who I know we will see again in a sequel. War with France is imminent after over a year at sea, and his success will likely get him command of a proper 98 gun ship, and more action.