Prometheus- moulded men out of water and earth [see Creation of Man] and gave them also fire, which, unknown to Zeus, he had hidden in a stalk of fennel. But when Zeus learned of it, he ordered Hephaestus to nail his body to Mount Caucasus, which he did with the help of Cratos (Power) and Bia (Force), but some say it was Hermes who nailed Prometheus . On it Prometheus was kept bound for many years. Every day an eagle swooped on him and devoured the lobes of his liver, which grew by night as much as the eagle had devoured during the day. But when Heracles 1 came to Caucasus he shot the eagle and released Prometheus . Some say that the eagle was the offspring of Typhon & Echidna, but others say that Hephaestus fashioned it [details about Typhon can be read at Zeus].