Walk through the door furthest away from you and take a left. Wait at the top of the white marble stairs.
Walk across sitting room to hallway that is to the right of the fireplace. Turn left towards stairs, stop at top step between two pillars.
Move around the table and to the right. Then go over or under rope and move forward. Continue down the hall straight, then through the doors. Turn to your left and continue forward and up the stairs.