Fai-Jon Lamentu Crypt (Location)
A treasure location inside the grounds of the Temple of Ptah in Memphis.
Use Senu to find both the treasure (underground), and the staircase icon, which will be north of the treasure, over a well.
Descend the well.
Smash through a wooden wall in the passage. When you get to the room at the end, look right and drop down.
Here you can find arrows, a floorful of cobras, and an Indiana Jones reference.
Use hunting arrows to kill the snakes, refill your quiver, then drop down and loot the white treasure chest. Doing so completes the location.