In the primordial days when Thesis was young and magic flowed like rivers across the land, there existed a realm of pure arcane energy called Aethermoor. This was the heart of all magic, where the very fabric of reality was woven by the hands of the First Mages.

But power, even divine power, corrupts when unchecked. The rivalry between Arcanus the Lightbringer and Valdris the Shadowweaver would cause the realm to fracture along the lines of opposing forces, scattering crystalline fragments of pure magic across the world we know today. These fragments became the source of all magical arts, but also the root of conflicts that echo through the ages.

This cataclysmic fracturing created the magical ley lines that adventurers can sense today, and explains why certain locations hold such potent arcane energies...