The myth of Imdeduya and Yolina is one of the great love stories of the Trobriand Islands. Imdeduya is a woman whose beauty is famed throughout the Kula region; the young man Yolina resolves to marry her and makes a long journey from village to village and island to island to reach her home. Their story, which turns from love to hate and ends tragically, has been documented in five variants by the linguist Gunter Senft: two tellings of the myth proper, a short story, a song cycle, and the English-language epic poem 'Sail the Midnight Sun' by the Trobriand poet John Kasaipwalova, which draws directly on the tradition. The corpus is a key case study of oral variation and the changing role of myth in modern Trobriand society.