Walk towards the stairs. Enter the room just left of the steps. Immediately turn right. Stay right as you follow the round wall. Exit through the front door. Wait here.
Exit the room by going to the right. Then take the left most way and go right in the large hall. Then take another right, and another right to exit the house.
Turn around and walk towards the steps behind you. Turn left and go past the stairs. In the next room turn right and walk towards the glass display case. Walk out the door to the right of the display case and stop when you get out.