Turn left from the place where you're standing and move forward. Slightly turn right and you can see a staircase. Walk all the way down through the stairs. Now you're towards the two portraits, which is hanging on the wall. Slightly turn right and you can see an entrance. Move towards that entrance and turn behind. You can see a closed door in front of you. Move towards that closed door. Now turn left and move forward, here you're facing towards a small wall. Slightly turn right and move towards the door which is in front of you. Now, turn right and enter into the lift. Stand in the middle of the lift and that is the end point.