The Erinyes are the avengers of the Underworld. Also known as the Furies, they pursue, punish and torment sinners. The Erinyes are called: Alecto (unnameable), Magaera (grudging) and Tisiphone (vengeful destruction). In the Goddess Girls series, they appear to enjoy making pacts.
The Erinyes were born from Uranus' genetalia when it was chopped up and thrown into the sea.
They are described by authors to have snakes for hair, dog heads, coal black bodies, and blood-shot eyes.
Their official Greek name Ἐρῑνύες.