Starting at the top of the staircase, go to the very bottom of all the staircases. Once at the bottom of all these staircases directly ahead of you is a bathroom, take one step to your left, it looks like towards the door that is opened in the corner that is opened that has four window panels. Once you are in front of the door that is opened and has four window panels. To the right you can see a picture of a yellow horse and to the left is the door that is opened and you are done.