Circe, a sorceress, the daughter of Helios and of the ocean nymph Perse. She was able by means of drugs and incantations to change humans into wolves, lions, and swine. The Greek hero Odysseus visited her island, Aeaea, with his companions, whom she changed into swine. But Odysseus, protected by the herb moly (a gift from Hermes), compelled her to restore them to their original shape. He stayed with her for one year before resuming his journey.