Makes the Trial Chambers darker by oxidizing more of the copper bulbs
a more dimly lit chamber room
a dimly lit double helix stairwell
one of the chambers more dimly lit, highlighted by the single unoxidized copper bulb above the ominous vault
another view of a dimly lit chamber with a highlighted ominous vault
the lower section of a chamber much more dimly lit by more oxidized copper bulbs
looking down a darker corridor