Captivity

The captives were led into El Castillo de San Marcos, the impregnable fort that had protected the city since the days of the Spanish. The fort's thick coquina walls were designed to absorb the cannon fire of British ships. High bastions flanked each corner of the structure, giving guards a clear view of the open surroundings. For added security, a moat surrounded the perimeter. The U.S. had just completed extensive repairs, renaming the building Fort Marion. With its high walls, isolated gun turrets, and exposed location, the structure was considered inescapable.