You're standing near the entrance. You're facing towards the blue color wall, which is beside the entrance, slightly turn left and exit the room, after exiting onto your right, you can see a portrait, move towards that portrait, beside a portrait. There is an open door, enter into that open door and make an immediate exit, after exiting move towards the chairs and get down the stairs, in the middle of the stairs. You can find a mirror on your left side, stand one ahead from the mirror. That is your end point.