You begin facing an arched window. Step towards the window and the mostly white painting next to it, and then turn right. Move past the left side of the circular dining table surrounded by chairs, until you can see a little more into the room on the left. You should see a white chair down there, slightly distant. Move in front of the white chair. That should take you right above the steps in the wooden floor. Form right above these steps, turn left, move to the bottom of the stairs proper. Once at the bottom of the stairs, turn a little bit right. You should see, down the two or three steps, a small hallway with a room in it. Go into that wood bordered room. You should see two armchairs on either side of a table... A black table with a lamp on the other side of it. Move to the right of the armchair on the right. You should be next to a shelf with a painting prominently displayed in its center, of Atlas. Once you're here, you're done.