Golden Tomb (Location)
A tomb in the Isolated Desert.
Come at it from the north to see the entrance.
Bash through the scarab wall to get inside.
As in the Desheret Desert, follow the beam of light.
Where it stops, use the sliding stacks to move new mirrors into place.
Burn away cobwebs with your torch.
Keep following the beam, pulsing as you go (there's plenty of miscellaneous loot and silica here). Toward the end, you'll have to smash some pots to clear the mirror.
Smash open the floor panel to proceed.
The beam shines on the ancient tablet, allowing you to complete the location.
Loot the tomb, then pass through the cobwebbed door into Oun-mAa Niye Ressoot.