Calvin says that the first thing you noticed right away was the low ceilings. It was half that of the other floors. This truly felt like a nonexistent floor. Built between the crawlspaces of two actual floors.
The taller members of the group buckled their knees to give the necessary headroom. And then excited, but also anxious, the group spread out and began to explore.
Calvin cautiously walked the length of a dimly lit, concrete hall. The layout wasn’t much different than your normal hotel corridor. Doors branching off on either side to other rooms.