You begin facing an archway, turn around and go down the staircase, once you're at the bottom of the staircase, go through the doorway on the right, and then turn to your left, go through the doorway on the left, next to the pillars, keep going forward through this room, towards the table with a star shaped art piece above it with a mirror in the middle, once you're standing right in front of it, you are done.