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