The origins of the harpies can be traced back to ancient days. When the Benelim race was young and adventurous. Domina Terra had recently gifted the Benelim with the Lifesong and the Earth Goddess gave her blessing to explore the Mortal Realms. One tribe of Benelim ventured into the mountains, forming their own kingdom high in the peaks, Regnum Frigida, named after the cold and rocky terrain. 

Despite growing a respectable kingdom over the course of a century, the mountain Benelim wished to go higher. They grew jealous of the many birds that flew in their mountains. No Benelim could ever fly, while some Benelim were more like upright walking animals, known as Animites, none were ever bird like. None of them had wings. The desire grew too much, so they sought aid from the Gods.

They parlayed with Dominus Venatus, God of the Hunt, Domina Terra and lastly Dominus Caelus, the God of the Sky. But they all refused to grant them wings. They all said the same thing. If they were meant to have wings, they would have gotten them by now. Terra advised them to take a step back and be grateful for what they had, not obsess over what they didn't. Even Caelus, whose domain was the very heavens believed it would be too risky to alter their being to grant them their desire. Once an essence is set in stone, altering it could have unexpected consequences.

Dejected and bitter, the Benelim went back home to their mountains. The following night a great storm visited their peaks. A tempest which caused untold devastation to their cities and towns, yet left the Benelim unharmed. A deity had come to their peaks and wished to make an offer.

Domina Tempestia, the Goddess of Chaos and the Storm.

The wife of Dominus Tenebrous, she was seen as a being of fear and dread. An enemy of Caelus and harbinger of destruction. Yet she came to them as a friend, someone who wished to help them when the other Gods would not. She fanned their flames of bitterness, claiming the Gods could have given them wings but simply chose not to. Denying what they wished out of spite and to keep them under their control.

Tempestia offered them the wings they so craved, if they just pledged their souls and essences to her forevermore. The mountain Benelim, eager for the chance to fly, accepted her terms. Thus the Benelim were altered by the magic of Tempestia and the first Harpies were brought into being. Rejoicing the harpies soared into the skies, relishing in their new found freedom. 

But as they flew, they spotted a trading caravan of Benelim and a strange urge overtook them. A bloodlust, a desire to spread chaos! Like wailing sprites they descended on the merchants, slaughtering them in an orgy of carnage. The harpies realized in horror what they had just done. Tempestia laughed at their plight, and revealed that as they are bound to her, they serve her desires now, for Tempestia is a being of chaos. 

Some of the harpies valiantly refused to play along, claiming they would beg for help from Terra or hide themselves away. Tempestia cared nothing for their words and punished them in retaliation. The dissenters turned to dust. Tempestia warned the rest that they must always spread chaos and discord where ever they go. If they wait too long or try to flake out of their service, they would turn to dust as well. Despair and madness filled the hearts of the remaining harpies and they accepted that this was their life now.

Over the centuries, such madness warped into a fanatical devotion. The harpies love their patron deity like few others. Generations of harpies sang the praises of their chaotic master. For Tempestia's part, she was not without gratitude. For their centuries of service, the eldest of the harpies found themselves gifted extra sets of wings and even the ability to cast storm magic, in imitation of the Storm Goddess herself. As a result, never has their bond been stronger.