Labor Four: the Erymanthian Boar

The fourth Labor took Heracles back to Arcadia in quest of an enormous boar, which he was challenged to bring back alive. While tracking it down he stopped to visit the centaur Pholus. This creature -- half-horse, half-man -- was examining one of the hero's arrows when he accidentally dropped it on his foot. Because it had been soaked in poisonous Hydra venom, Pholus succumbed immediately. Heracles finally located the boar on Mount Erymanthus and managed to drive it into a snowbank, immobilizing it. Flinging it up onto his shoulder, he carried it back to Eurystheus, who cowered as usual in his storage jar.