Outfitted with a new ship, Hannah Pritchard is on the hunt for buried treasure. Officially a part of the new Continental navy, Hannah's crew must also complete missions for the American war effort. On their journey, Hannah and her friends must watch out for British ships that patrol the dangerous waters. And a new enemy, the evil pirate Captain Samuel Cutter, is racing for the treasure, too. Will Hannah reach the treasure first? This final book in the Hannah Pritchard trilogy follows Hannah Pritchard on her exciting sea voyages and her search for pirate gold.