Go past the top of the stairs and go to the right. At the end of the walkway turn to the left and wait in the doorway.
Walk past the stairs in front of you. Keep going down the hallway and turn into the last door on the left. Stop when you reach the doorway and see another hallway.
Take a left out of the doorway and turn right at the end of the hallway and walk to the end of that hallway and stand in the doorway to the left.