After a few minutes, the answer comes back: no one will admit to having touched an abacus. This chamber was the last part of the fortress to be reached by Americans. The bodies of the slaves were mostly found piled up near the door. The body of the Nipponese officer was on the bottom of the pile. The door had been locked from the inside. It is a metal door, and has a slight outward bulge, as the fire upstairs apparently sucked all the air out of the room in a big hurry.