Those who had been cast down, the demons who would be gods, began to whisper to men from their tombs within the earth. And the men of Tevinter heard, and raised altars to the pretender-gods once more, and in return were given, in hushed whispers, the secrets of darkest magic.
But it was not worship the false gods craved.
They urged the magisters to ever-greater depravity, rewarding them with power and more. Arrogance became a great caged beast in the lands of Tevinter, an emptiness that consumed all and could never be filled. To satisfy its hunger, the mage-lords, at the goading of their gods, assaulted the Golden City, heart of all creation, to take the Maker's power for themselves.
The moment they entered the city of the Maker, their sin poisoned it. What had been golden turned black, and violently they were flung from the world of dreams back into the waking world. Twisted and corrupted by their crime and their magic into monsters, they fled underground, unable to bear the light of day. The first darkspawn.