Turn around and walk towards the stairs near the Christmas tree. Next, walk up the entire stairwell. Turn right at the first door at the top of the stairs and wait in the doorway.
Go up the stairs, at the top of the stairs make a right into the doorway on the right and stop.
With the fireplace behind you, move forward and right to the base of the stairs leading upwards. Climb the stairs all the way to the top, then stop at the first door to your right with the label "City Room".