Before humans, one of the Kaliths (deities) visited an unfriendly village and was killed by its inhabitants. His friends, searching for him, were met with unkindness except from the woman Milathk, who told them of the death. They resolved vengeance by flooding the village, and suggested Milathk save herself on a raft. Milathk perished in the flood, but was recalled to life and became the mother of mankind. [Kelsen, in Dundes]
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References: Dundes, Alan (ed.) The Flood Myth, University of California Press, Berkeley and London, 1988.