Henry Kuttner 
Mask of Circe 

Jay Seward remembered a former life in a land of magic, gods, and goddesses…a time when he was Jason of Iolcus, sailing in the enchanted ship Argo to steal the Golden Fleece from the serpent-temples of Apollo. But one night the memories became startlingly real, as the Argo itself sailed out of the spectral mists and a hauntingly beautiful voice called: "Jason…come to me!" And suddenly he was on the deck of the Argo, sailing into danger and magic…