The Temple of the Desert Eye was once a prime Landmark and place of religious teachings for the Viri people during the Elven Rule Time Period. Until it exploded and caved into itself. Ever since then it lay dorment as but rubble along the Mountainside.
Later, when the Mummies awoken from their slumber. What was left of the Temple that was undamaged by the explosion was used by Baal and his undead minions as a startegic hideout so they can plan there greatest battles yet to come.