You're currently standing in the hallway, with a black railing to your right. Take three steps down the hallway, ignoring the first opening on your left. Take three more steps to the hallway, until you see a double door to your left. Take a step forward in front of you, until you're in front of the marble staircase going down. Ignoring the other marble staircase going down behind you. Take one last step down the marble staircase in front of you. Once you're standing on the first and second step of this marble staircase, you're done.