Complex sentence: 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.
Split into simpler sentences: Following the privateer south, "Surprise" rounds Cape Horn. The ship heads to the Galapagos Islands, where Aubrey is sure "Acheron" will prey on Britain's whaling fleet.