Right now you're facing towards a wall. Now turn left and exit the room through the open door which is in front of you. There is an open door in front of you, move towards the door and enter in to the room, there is an open door to your right, move towards the door and turn right. Now exit the room, there is a book shelf in front of you and a closed door beside the book shelf to your left, move towards the door and turn left. There is an open door in front of you, move towards the door and exit the room. Now you are in the balcony facing towards the wall. Now slightly turn right, there is a ladder in front of you, move towards the ladder and stand beside the ladder and it is your end point.