Hypnos comes from the name of his Latin counterpart, Somnus. (in- "not" + somnus "sleep"), as well as a few less-common words such as "somnolent", meaning sleepy or tending to cause sleep and hypersomnia meaning excessive sleep, which can be caused by many conditions (known as secondary hypersomnia) or a rare sleep disorder causing excessive sleep with unknown cause, called Idiopathic Hypersomnia. 3D model of "Bronze head of Hypnos" via laser scan of a cast of British Museum's bronze. Hypnos In Greek mythology, Hypnos (; , "sleep") is the personification of sleep; the Roman equivalent is known as Somnus. In the
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