Leave your room, enter the room on the left side of the hall, enter the hole in the wall within that room. Leave, grab the key from the room closest to the exit of the hall on the right. Leave, leave the hall by going through the right side door. Go down the stairs, walk to the right of that hall until you reach a room with a note in the center. Go up from there into the next area.
Let yourself get caught in this room, tell the creature you don't want to play a game, and wait in the jail cell.