You are in a living area go straight there you will find a two open doors from the two open doors go straight through the corridor and again make a slight left turn there you see a empty hall. Make a slight left turn and go straight near to the open door. And again make a slight left turn make a little bit move and again turn towards the arch room. Just get into the arch room and go straight near the chair and again make a  slight left turn. In front of you there is a closed door. Beside the closed door we reached our destination.