Hypnos No light and no sound would ever enter his grotto. According to Homer, he lives on the island Lemnos, which later on has been claimed to be his very own dream-island. He is said to be a calm and gentle god, as he helps humans in need and, due to their sleep, owns half of their lives. Hypnos lived next to his twin brother, Thanatos (Θάνατος, "death personified") in the underworld. Hypnos' mother was Nyx (Νύξ, "Night"), the deity of Night, and his father was Erebus, the deity of Darkness. Nyx was a dreadful and powerful goddess, and even Zeus
Pluto (mythology) . Jupiter got the sky, Neptune got the sea, and Pluto got the shaft." In Riordan's explanation, Hades "was more of a death god," but acquired his identity as a god of wealth among the Romans, along with a new name. Scientific terms derived from the name of Pluto include: Pluto (mythology) Pluto (Latin: "Plūtō"; , "") was the ruler of the underworld in classical mythology. The earlier name for the god was Hades, which became more common as the name of the underworld itself. In ancient Greek religion and mythology, Pluto represents a more positive concept of the god