Right. Now, you probably have Jim's room. The trap door goes nowhere now, I'm afraid, because they moved our dorm when our partners got switched, so the tunnel isn't there anymore. And we never managed to get the blood off the wall after that one game, so that's there to stay too, I'm afraid. But it's someplace to sleep at night.
Oh, and I almost forgot: down by Pyxis and Cygnus is the closest bathhouse, and if you keep going out that direction, or in the direction of Delphinus and Pavo, eventually you'll hit the Arena.