Reasonable enough.
Currently, you are pleased to find yourself relatively comfortable with the acts of walking and breathing. Even in perfect darkness, you are aware of your body. You have a general idea of the space you are inhabiting, and even know not to worry too much about running into the walls. The corridor is wide enough to accommodate several of you linking arms and walking together, which you can gather from the soft echo of your footsteps that reaches your strangely-curved ears frequently.
Huh. The corridor wasn't half as long as you thought it was going to be... You arrive at its end and notice immediately that the hallway leads to a dropoff. No way are you stepping off that ledge.
[Bother the webmaster about adding more content to this game].