Also known as the Furies, these vengeful spirits brought curses and torment to those mortals who committed crimes against the natural order or didn't keep an oath. The sisters, Alecto, Megaera, and Tisiphone, were particularly concerned with homicide, unethical conduct, offenses against the gods, and perjury. These foul creatures were servants to Hades and Persephone, who entrusted them as well with the punishment of the souls trapped in the Dungeon of the Damned.