human
Create a detailed description of a dreary scene inside of a medieval bank with a teller and a blood streak on the wall.
assistant
Chiseled into the cold stone walls of the bank is a tiny opening which leaves just enough room for the teller behind it to squint through and pass coins. The flat grey of the room is unbroken, save for a few pale scuffs and a streak of old blood on the thick wall nearest the lobby.