Exit the room using the door on the right then turn right and go up the stair until you get four steps from the top then stop.
Exit through the set of double doors and head up one flight of the stairs. Wait there.
With the fireplace on your left side, move forward until you can exit the room through a door to your left. Exit through the door and climb the stairs to your immediate right. After reaching the first landing, take two more steps up the next staircase.