Greek underworld his duty was to bring these souls to the underworld and no one would persuade him to do otherwise. Cerberus (Kerberos), or the "Hell-Hound", is Hades' massive multi-headed (usually three-headed) dog with some descriptions stating that it also has a snake-headed tail and snake heads on its back and as its mane. Born from Echidna and Typhon, Cerberus guards the gate that serves as the entrance of the underworld. Cerberus' duty is to prevent dead people from leaving the underworld. Heracles once borrowed Cerberus as the final part of the Labours of Heracles. Orpheus once soothed it to sleep with
Greek underworld name. Not much is known about her, but she is an ally of Zeus and lives in the underworld. Eurynomos is one of the daemons of the underworld, who eats off all the flesh of the corpses, leaving only their bones. In the Greek underworld, the souls of the dead still existed but they are insubstantial and they flitted around the underworld with no sense of purpose. The dead within the Homeric underworld lack "menos", or strength, and therefore they cannot influence those on earth. They also lack "phrenes", or wit, and are heedless of what goes on around them