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
archer
soldier
I am a soldier of His Majesty's Army. The King has selected a few of us to be Knights. I am very proud to fight for my land. We will be strong and defeat the enemy.
I am ready, but sorry did you say badger cultists!? Oh yes, very dangerous.  They like to bite. Why are they attacking us? Because they are hungry and think we will make good sacrifices to their god! Alright then. My sword is rather useless here in this hole. I guess I should pick up a bow Aim for the eyes, the limbs will just make them angrier. Will do, hopefully we win. I don't want to be eaten by badgers No, me neither.  I hear they start with the fingers and toes first, then the move on to . . . other places. Gross Well, they're not called the badger-happy-fun-time-club. Perhaps not. We must protect our land and king! FOR THE KING!