Primordials

The Primordials are the true creators of Illantior. Their powers forged together the world and pulled it from the mass of chaos. It was only when The Powers imposed order upon the land that the world was truly whole.
These titans are responsible for the Vestiges and Genasi who now guard their prisons, sealed under layers of Orichalcum. These Places of Power leech the power of the Primordials and keep them dormant after their defeat and they are the source of all magic within the world.
The Primordials have a very small following and these hidden cults are often propogated by the words of the Harbinger. Some Genasi who seek to reveal the Great Lie also worship their creators.
No one knows how many Primordials there are, although most agree there are at least 5. For those who research, the destruction of all the Places of Power will unlock the locks and free the Primordials once more.