chunk: Following the privateer south, Surprise rounds Cape Horn and heads to the Galapagos Islands, where Aubrey is sure Acheron will prey on Britain's whaling fleet. The ship's doctor, Maturin, is interested in the islands' flora and fauna, and Aubrey promises his friend several days' exploration time. When Surprise reaches the Galapagos they recover the survivors of a whaling ship destroyed by Acheron. Realizing the ship is close, Aubrey hastily pursues the privateer. Maturin feels that Aubrey is going back on his word, and is following Acheron more out of pride than duty.