Turn left, go down the stairs to the bottom of the stairs. Turn around so you're facing the stairs. Go to the right of the stairs, past the table and then stop.
Walk down the stairs, turn hard left at the base of the stairs, stop and wait by the table with the bust.
You'll go slightly to the left and go down the stairs. When you get down there, you'll turn around and see a a table and chairs. You'll walk past the table and chairs and go to the far end of it. There you can wait.