"Reminiscent of Ursula Le Guin's paradigm-shattering The Left Hand of Darkness, this piercingly moving story belongs in most fantasy collections."--Library Journal There are secrets beneath her skin. Sorykah Minuit is a scholar, an engineer, and the sole woman aboard an ice-drilling submarine in the frozen land of the Sigue. What no one knows is that she is also a Trader: one who can switch genders suddenly,...