Go into the room with the large blue rug and two round tables in the middle. Go stand outside the doorway to the left of the stairs.
Go through the near doorway, make a left and go straight, keep left and go passed the stairs and wait.
Exit the room and walk down the small hallway with a door on either side. Walk into the room with a large round table in the middle of it. Turn left and walk toward the staircase. Go to the left of the staircase and stop in front of the archway.