Hypnos Hypnos In Greek mythology, Hypnos (; , "sleep") is the personification of sleep; the Roman equivalent is known as Somnus. In the Greek mythology, Hypnos is the son of Nyx ("The Night") and Erebus ("The Darkness"). His brother is Thanatos ("Death"). Both siblings live in the underworld ("Hades") or in Erebus, another valley of the Greek underworld. According to rumors, Hypnos lived in a big cave, which the river Lethe ("Forgetfulness") comes from and where night and day meet. His bed is made of ebony, on the entrance of the cave grow a number of poppies and other hypnotic plants.
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