Move forward from the place where you're standing towards the closed door which is in front of you. Now, slightly turn left and exit the room. Now, you can see an another opened door on the left side, move towards that opened door. Now, turn left and step into the room. Here you're facing towards a portrait. Turn right and you can see an another opened door. Move towards that opened door and walk in the room till you reach an another opened door in front of you. After you reach the entrance of the another opened door, slightly turn left and take a few steps, where you will be facing towards a wall and that is the end point.