She lived in the island of Aeaea and when Odysseus on his wanderings came to her island, Circe, after having changed several of his companions into pigs, became so much attached to the unfortunate hero, that he was induced to remain a whole year with her. At length, when he wished to leave her, she prevailed upon him to descend into the lower world to consult the seer Teiresias.
After his return from thence, she explained to him the dangers which he would yet have to encounter, and then dismissed him. Her descent is differently described by the poets, for some call her a daughter of Hyperion and Aerope (Orph. Argon. 1215), and others a daughter of Aeetes and Hecate.
According to The Theogony of Hesiod (1011) she became by Odysseus
the mother of Agrius. The Latin poets too make great use of the
story of Circe, the sorceress, who metamorphosed Scylla and
Picus, king of the Ausonians. (Metamorphoses by Ovid