In front you can see a wall painted frame on the wall. Make a slight right turn and go near to the entrance of the door and step out from the room and walk through the corridor up to where you can see a single open door on you are right side. From there make a slight left turn and move forward in front you can see a stair case. Just climb down near to the fourth step and stand at the fourth step. Here we reached our destination at the fourth step.