Aeolis, the seemingly uninhabited Eden-like planet named for the unexpected winds, is terraformed and humanity begins colonization, establishing a feudal system of government, economy and society. But unidentifiable corpses are turning up all over and pose a bizarre threat to human control of the planet. A detachment from Earth is sent to investigate, to solve whether or not Aeolis is really inhabited and the secret of corpses, a secret whispered by the winds every day and that could spell the end of human life on the planet.

