Cerberus is the guard dog of the Underworld, and a servant of Hades (Saint Seiya). He is the legendary three headed dog, that guards the underworld, the only way to have any person pass, is to feed all three heads the same amount. Its name means demon of the pit. In Greek Mythology, Cerberus was the three-headed dog that guards the gates to the Underworld. He was the son of the demon Typhon and his mate, Echidna who were created by Gaia to defeat Zeus as revenge for his imprisonment of the Titans in Tartarus. After Typhon was imprisoned beneath Mount Etna, Zeus let Echidna's offspring live so that they may present a challenge for future heroes. Contrary to Dante and Kurumada's depictions of him, Cerberus has an appetite for live meat, he is friendly to any dead soul who enters the underworld, but if they try to escape then he gets angered. The only way to calm him down is with either drugged honey cakes, which is what the Cumaean Sybill did when she helped Aeneas venture through the underworld, or with music as with Orpheus did with his enchanted lyre. Hercules, on the other hand, used his bare strength to bring Cerberus up to the surface on his 12th and final labor, after which he returned the dog to Hades as he promised. Cerberus is one of many children of Tyhon, and scariest of canines next to his younger brother, Orthus, the two headed dog.