Helen of Troy to the underworld, the domain of Hades, to kidnap Persephone. 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 most accounts of this event, Helen was quite young; Hellanicus of Lesbos said she was seven years old and Diodorus makes her ten years old. On the other hand, Stesichorus said that Iphigenia was the daughter of Theseus and Helen,
Helen of Troy was "the famous egg that legend says Leda brought forth". Pausanias traveled to Sparta to visit the sanctuary, dedicated to Hilaeira and Phoebe, in order to see the relic for himself. Two Athenians, Theseus and Pirithous, thought that since they were both sons of gods, both of them should have divine wives; they thus pledged to help each other abduct two daughters of Zeus. Theseus chose Helen, and Pirithous vowed to marry Persephone, the wife of Hades. Theseus took Helen and left her with his mother Aethra or his associate Aphidnus at Aphidnae or Athens. Theseus and Pirithous then traveled