Atlea and Beyond
Cult of the Elemental Eye
The Elemental Eye was revealed to be a cult with many splinter factions. One such faction is ruled by a drow Priestess of the Elemental Eye who inhabits the underdark.
When questioned about Najala they stated that there is no governing body which controls all the sects of the Elemental Eye. She was probably a rogue agent or leader of a separate sect.