William Dover, a fur trapper in the Wyoming frontier, has long been warned to stay away from Hathor's Canyon. It is a dangerous place, especially in winter, with eerie rock formations that seem to belong to another world. But when a freak blizzard strikes, William finds himself driven into that very canyon by the storm, huddling against cold far worse than any he's ever known. The snow blinds and the frost chills, but the most fearsome thing of all is what he hears carried on the wind.