In Greek mythology, Erebus, also Erebos or Erebes (Ancient Greek:, "deep darkness or shadow"), was the son of a primordial god, Chaos, and represented the personification of darkness and shadow, which filled in all the corners and crannies of the world. His name is used interchangeably with Tartarus and Hades since Erebus is often thought of as part of the underworld. Erebus married his sister Nyx (goddess of the night) and their children included Aether, Hemera, Nemesis, and Charon. Etymology… (More on Erebus)