Greek underworld are the unburied which can't be taken across from bank to bank until they receive a proper burial. Across the river, guarding the gates of the underworld is Cerberus. There is also an area where the Judges of the underworld decide where to send the souls of the person — to Elysium, the Fields of Asphodel, or Tartarus. While Tartarus is not considered to be directly a part of the underworld, it is described as being as far beneath the underworld as the earth is beneath the sky. It is so dark that the "night is poured around it in
The God Beneath the Sea throws Hephaestus for a second time from Olympus. Hephaestus lands on the isle of Lemnos and is nursed to health by the locals. He returns to Olympus and is greeted by Hermes. At the novel's conclusion, Autolycus muses in a letter to his daughter that his grandson Odysseus may one day visit the new city of Troy. Blishen and Garfield began work on "The God Beneath the Sea" after discovering that Greek mythology had had similar impacts on them as primary school children. In Blishen's words, "these stories seemed to illuminate, to make clear, what was going on around me