The Aberrant Mark
The Dawn of Time
At the beginning of time, called the Age of Dragons, three progenitor dragons fought. Proud Siberys was slain by dark Khyber, who in turn was bound by vibrant Eberron. The scattered remains of Siberys, the Dragon Above, became the ring that encircles the world. The body of Eberron, the Dragon Between, formed the seas and continents. Under the surface, the bones and blood of Khyber, the Dragon Below, created labyrinthine passages.