 Hades pretended to offer them hospitality and set a feast, but, as soon as the pair sat down, snakes coiled around their feet and held them there.Helen's abduction caused an invasion of Athens by Castor and Pollux, who captured Aethra in revenge, and returned their sister to Sparta.In Goethe's "Faust," Centaur Chiron is said to have aided the Dioscuri brothers in returning Helen home.