Right now you're facing towards the windows. Turn left and exit the room. Now slightly turn left and walk in the passage till you reach a wall. Now, slightly turn and you can see a staircase. Walk all the way down through the stairs. Now, you can see a brown cupboard in front of you, move towards that brown cupboard. Now, turn right and you can see a white cupboard with few shelves in front of you. Move towards that white cupboard and that is the end point.