Hades was the brother of Zeus and Poseidon and the god of the Underworld. He was allotted this kingdom when the three brothers took a draw to decide who will take each of three (heavens, sea and the Underworld). He liked to live in the dark and shadowed world of the dead and was rarely seen on Olympus. This is why, although he is one of the most important gods, some lists do not include him in the 12 Olympians. He was also known as Pluto. "Plutos" in Greek means wealth. The Earth is giving us a lot of treasures and since Hades' kingdom is underneath it, the ancient Greeks believed that he was the one delivering the wealth to them. They actually preferred to call him Pluto because the name Hades was another name for the Underworld and they did not like the idea of death. The entrance to the Underworld is guarded by a monstrous dog, Hades' favorite pet, the three-headed Cerberus. In order for your soul to cross the silent river, you need to pay the ferryman, Charon, to carry you to the other side on his boat.