The monster that attacked Odysseus as he sailed through the Strait of Messina on his way home after the sack of the city of Troy. Skylla is a hideous beast and, according to the Argonautika, the daughter of Phorkys (Phorcys) and Hekate (Hecate); Skylla has twelve legs and six heads and swoops down on passing ships or sea creatures from the rock she inhabits; according to the Great Eoiae, Skylla was the daughter of Hekate and Phoebus. -- Stewart, Michael. "People, Places & Things: Skylla", Greek Mythology: From the Iliad to the Fall of the Last Tyrant. Available Online.