Turn left from the place you are standing and move forward, now you are facing towards the wall, slightly turn to your right and move a bit forward, turn left and move forward, to your right you can find a sink, enter into the opening which is to your left, slightly turn to your left and move forward, now you are facing towards the pillar, slightly turn to your right, you can find two portraits on the wall, stand infront of the two portraits which is to the right of the opened door, that would be your end point.