How do I get back to the Orrery with Shield 3?
Hint 1 of 8:
Shield 3 is your key.
Hint 2 of 8:
Return to Geffrye's studio and go through the northeast door to the Bell
Tower.
Hint 3 of 8:
Go up the ramp and ascend the staircase to the left.
Hint 4 of 8:
At the top of the staircase is a door with a shield-shape panel beside it.
Hint 5 of 8:
Insert Shield 3, but don't leave it there.
Hint 6 of 8:
Remove the Shield and turn around.
Hint 7 of 8:
Open the panel in the east wall and go through.
Hint 8 of 8:
You are in familiar surroundings now in the Holding Area.