You are in a room facing the chair and the curtains, turn around and exit the room through the narrow passage, now you can see four doors in the front, enter the second door from the right side, walk straight in the passage, now you are in a big hall, turn left side and walk in between the two circular tables and enter the arch beside the single brown chair which is beside the wooden cupboard, enter the passage and stand in front of the left side glass window, that is your destination.