For years stories had been passed down the generations of horned horses. They performed great deeds of magic, and any young woman would have died for the gift to touch the beast's glorious mane, said to flow in waves behind her. They were said to always be female, as delicate in their beauty as they were powerful with magic.
They said they came with grace and peace but on this day there was terror. The great beast that thundered across the ridge was horrid. His hooves pounded the earth and drew even the fire from his touch, where delicate, gentle eyes belonged gaped open holes, and he snorted wildly, throwing his head back. For the unicorns of legend were only those of light. Forgotten were the other elements. A stallion of fire swept through the land now. He bore no resemblance to those creatures of legend, though the horn upon his crown was unmistakable.
His brethren were less malicious, more controlled. They spent less time in the open, but a strike drawn by a mare of thunder had brought him roaring into the world to spread his fiery magic.
As he danced through the flames new stories were weaving, of demons that rode on the flames themselves. He was no demon, but he would be remembered forever.
(Character mine, thankies)