The Story of Dragonvault
Long ago, in a time known as the Godstrife Era, the great powers of this world were at war. The Green Warden and his kin, the Eldrin, were locked in a bloody feud with another race of divine beings whom had awakened in the world of Tarn. These were the Avalar, and they were led by Ereus, whom had his own vision for the world. For hundreds of years, these titanic forces clashed, marring much of creation, in their struggle for dominion over the earth.
But then, a third tribe of gods appeared, from another world entirely. Their home, called Al-Kazael, or Witherdark, had collided with Tarn by chance, while it drifted in the Cosmic Sea. This cataclysmic event was called the Worldrending, and the Vorgar Lords fell like burning stars through a bleeding rift in the heavens.
The Vorgar, led by Maligor the Archfiend, were utterly cruel in nature. With their infernal legions, they established themselves as the new rulers of Tarn, challenging the might of both the Eldrin and the Avalar. In those days, humans had not yet taken shape, but the Vorgar lured many of the Fae into their service. A great temple was constructed at the behest of the Lords. It was called Mal'Gazar.
In the halls of Mal'Gazar, dark rites were performed, and through the union of Vorgar and Fae, new monstrous races came into being. First among these abominations were the Ettins, whom were the spawn of Maligor, and the Fae whom he had tempted to his service. And they were great in stature, and terrible to behold, feasting upon all manner of flesh. Then, came the Trolls, whom Thraxeus, the Lord of Violence had sired. And the Dragons came forth shortly afterward, the winged children of Draegor, and in those ancient days they could take fair forms at will. Many other fell creatures were sired by the Vorgar Lords, and other beasts native to Tarn were corrupted by sorcery. And so the earth was filled with violence.
The threat of the Vorgar and their wretched spawn was so great that the Eldrin and the Avalar were compelled to join forces against them. They sealed the pact through intermarriage, and ceased all hostilities between each other. Then, a great army of Fae, who had not been lured to evil, rallied with them, and stormed the temple of Mal'Gazar.
In the battle which followed, Maligor was slain by Ereus in single combat, and his Vorgar servants were bound in chains, in the Lightless Halls, as far below the earth as the crown of heaven sits above the highest mountain peaks. They laid much of Mal'Gazar to waste, but its evil foundations could not be moved. The Ettins, the Trollfolk and other fell creatures fled to the dark corners of the world. Many of the dragons were destroyed, but some lived on, fleeing to remote places, or underground. Then, Ereus was crowned the king of all creation, and he oversaw the birth of humanity not long after.
Though humans were valiant, driving monsters from their lands, the spawn of the Vorgar slowly multiplied outside the borders of civilization, and in time, they were drawn back to Mal'Gazar. The dragons began using the temple as a treasure-hoard, piling magical artifacts and priceless gems in great heaps in the those accursed halls. And it became known thenceforth as the Dragonvault.
Adventurers travelled from the four corners of the world to brave this untold danger, and to win glory and riches for themselves. But few survived to tell the tale.
You can also learn about the story of Dragonvault: Evernight Vale here.