It came to pass that Dios favored a certain group of mortals greatly. These mortals were called elves, and they were full of life. The Magus's power shone brightly in them. They were the first mortals It put Its entire self into creating, and that light was a beacon. Every elf that gave praise to the Sun, gave praise to the Light, was another spark of The Magus's power reclaimed.
Nyx grew envious.
She had no mortals of her own to play with. The elves, as She knew, feared the Night, for they could not see in the darkness. In the beginning, the elves were the only mortals worth playing with: they were the only mortals who could think. They made plans, they had dreams. No other mortal could boast such things.
And so Nyx went down amongst the elves at night, disguising Herself as a beautiful, if blind, young woman.
"Why do you hide?" She called out to them, standing in the town square.
One very brave elf cracked open the shutters to his window to respond. "It isn't safe," he explained. "You should go inside."
She shook Her head. "The Night is beautiful, if only you could see It." She beckoned the elf, and he closed the window to Her.
So it went. Nyx would cajole the elves to leave their homes, and one by one, the elves refused, until at last, a small child left her empty home. Nyx knew this child. Once in the forest, her family had been slaughtered by wolves. Nyx had watched with interest, but had not intervened.
"They won't come," the child explained. "They are too afraid."
Nyx smiled down at the child. "Why are they so afraid, little one?"
"The darkness hides fearsome beasts," said the girl. "We cannot see them to fight back."
Nyx rested a hand over the girl's eyes. "Then I will give you sight to pierce the darkness," She spoke, and so it was. The girl could see in darkness.
"The creatures are too strong to fight, Mistress," said the child.
And Nyx shifted Her hand, resting it atop the child's head. "Then I shall make you strong enough to face any challenge. No beast will be too great for you."
The Goddess did this for each member of the clan Ba'naelro, and She became diminished for her efforts. Her spark shone dark, shadowing The Magus' own, and her people were strong.
God-touched, Her children did not age. They were masters of all beasts. They were strong, and they were cunning. However, although as creatures of the light they had been able to suffer the darkness, as Children of Night, the reverse was no longer true. Sunlight burned them, as did places and things consecrated to Dios. Submersion in fresh waters weakened them, burning their skin like acid.
However, the Night was beautiful to them, and they were powerful. They became content with their new place in the world, and Nyx was content with her single clan of mortals.
One day, Dios learned of this treachery.
He raged endlessly, unable to find, much less punish, the wayward tribe. In His stead, He sent His most powerful clerics, and His fiercest warriors, to kill the Night Children.
The Night Children sent the warriors and clerics back in pieces, suffering only few losses.
So it continued for some time, and this grieved Nyx. She is above all else, a goddess of healing, not war. Her children's deaths weighed heavy on her heart, especially as they could not reproduce as mortals did to replenish their numbers.
In her grief, Nyx bestowed upon her children new powers. They would be able to become as beasts, or fine mist, and they could heal any wound
Most importantly, by sharing their blood with a true mortal, they could create new Night Children, and thereby replenish their ranks. These new creatures were the first vampires, and they did not have the divine spark their parents were given. They craved it,
needed it to sustain their power - no, their very lives. Before long, they turned on their parents, killing almost every last elf of the clan Ba'naelro.
Then, when there were no more Children to be found, the vampires turned outward. They hunted down any elves they could find. Some did choose to expand their numbers, creating a great many vampires. Many did not, choosing instead to leave a wake of drained bodies behind.
So ended the time of the elves.