The Unchosen WeekEthan Rao has spent his life standing still—calculating risks, avoiding involvement, walking past strangers who need help. When a woman runs past him to save a cyclist he ignored, the moment fractures something inside him, opening a door to six months of quiet torment. Then he discovers the Divergence Engine, a machine that promises to show him who he might have been if he had stopped that night. But the machine doesn't simulate alternate lives—it creates them, birthing entire universes from human curiosity, and every world it builds comes at the cost of another. Now Ethan must confront the man whose life he borrowed, the billions of displaced souls fighting to return, and the terrifying possibility that the only way to save everyone is to become someone he never imagined he could be.
