The Years of Salt and Rice, written by Kim Stanley Robinson, is an alternative history mystery that explores the consequences of a different outcome for the Mongol Empire. In this novel, Genghis Khan converts to Buddhism and promotes a peaceful and environmentally conscious empire. The story follows a group of characters who are reincarnated throughout history, witnessing the rise and fall of civilizations and grappling with questions of power and human nature. With its thought-provoking exploration of alternative historical paths, The Years of Salt and Rice is a captivating read for fans of both alternative history and mystery genres.