Sasha

“Once upon a time, there was only darkness, and there were monsters vast as worlds who swam in it. They were the Gibborium, and they loved the darkness because it concealed their hideousness. Whenever some other creature contrived to make light, they would extinguish it. When stars were born, they swallowed them, and it seemed that darkness would be eternal.

But a race of bright warriors heard of the Gibborium and traveled from their far world to do battle with them. The war was long, light against dark, and many warriors were slain. In the end, when they vanquished the monsters, there were a hundred left alive, and these hundred were the godstars, who brought light to the universe.

They made the rest of the stars, including our sun, and there was no more darkness, only endless light. They made children in their image- seraphim - and sent them down to beat light to the worlds that spun in space, and all was good. But one day, the last of the Gibborium, who was called Zamzumin, persuaded them that shadows were needed, that they would make the light seem brighter by contrast, and so the godstars brought shadows into being.

But Zamzumin was a trickster. He needed only a shred of darkness to work with. He breathed life into the shadows, and as the godstars had made the seraphim in their own image, so did Zamzumin make the chimaera in his, and so they were hideous, and forever after the seraphim would fight on the side of light, and the chimaera for dark, and they would be enemies until the end of the world.”
― Laini Taylor, Daughter of Smoke & Bone