Hephaestus make love to Athena: at the moment of climax she pushes him aside, and his semen falls to the earth where it impregnates Gaia." Hephaestus was associated by Greek colonists in southern Italy with the volcano gods Adranus (of Mount Etna) and Vulcanus of the Lipari islands. The first-century sage Apollonius of Tyana is said to have observed, "there are many other mountains all over the earth that are on fire, and yet we should never be done with it if we assigned to them giants and gods like Hephaestus". In the Trojan war, Hephaestus sided with the Greeks, but
The God Beneath the Sea Eurynome and the two goddesses tell him various Greek creation myths. The novel continues with myths of the Olympians and the age of gods and mortals, and concludes with Hephaestus returning to Olympus, having been cast down for a second time after reproaching Zeus. Garfield, Blishen, Keeping, and Longman collaborated on a sequel entitled "The Golden Shadow" (1973, ). It is based on myths of the later heroic age, when divine activity was limited. "The God Beneath the Sea" is divided into three parts. Part one begins with the image of the infant Hephaestus plummeting from Olympus to the ocean.