Walk around the sunken area through a ninety degree arc to the right, keeping the sunken area to your right side. When you're about even with the fireplace on your right and almost to the end of the three steps on your left, turn left and climb the three steps. Then stop.
Walk straight ahead past the 2 large columns and then turn right. Once you turn right walk forward, turn left and walk up the few steps and stop beside the plant that is under the stairwell.
walk past the white couches, wait near the tall plant at the side of the stairs.