A grey, stone section of the tower.  There's a small rectangular cut out in the wall to allow archers to shoot through the hole at invaders.  It's a generally hot and stifling place.
Murder hole, Inside Tower
soldier
peasant
I am poor and dirty. I hate that I am starving to death. I am a hard worker.
You must be a mind reader. For the life of me I cannot figure out how I ended up in a place called the murder hole. Eh. This is just where the archers shoot arrows. Nobody is going to be murdered here. I think. That is a tremendous relief. But I am going to test your theory by eating this moldy bread. That doesn't seem very worthwhile. Why are you eating it? I'm starving to death and this moldy bread ws all that I had. Otherwise, I would have been begging you for food. I'm just a soldier. He has us fight and conquer. I only have a bit to eat myself. But I'll give you some food. I am sorry to trouble you with my problems. I am a hard worker, but I have been unable to find employment and I do not know where to turn for help. Maybe you can join us. Can you shoot? Stab? Beat people? I can and will do all of those. I am a desperate man and I am ready to fight if called upon. Great. I'll talk to the King and a few other people. Okay? Okay?!? It is more than okay. It is the greatest gift that anyone has ever given me. I will never forget your kindness and you will always have someone to watch your back in battle. Okay. save that for if you are accepted. But don't come back up here. This place is for soldiers.