You are in a small square room, windowless. You look around and see two doors.
You look up and see the ceiling is about eighteen feet too high for you to reach.
What to do, what to do. You think about it. You decide you have a couple of
options. You can dig, but you wonder how long your fingernails
would last on the concrete floor. You decide that one of the two doors would
probably be your best bet. The door on your left looks heavy and hard
to move. In front of you, the door looks more like a curtain.