Slightly turn to your right from the place you are standing and move forward, turn right, you can find an opening to your right and a mirror to your left, go near the mirror, turn right and move a bit forward, slightly turn to your left, to your left you can find an opened door, move towards the opened door and exit the room, now you are facing towards the staircase, where to the right you can find an opened door, that would be your end point.