From the #1 New York Times bestselling author of Small Great Things and A Spark of Light comes a riveting novel about the choices that alter the course of our lives. Everything changes in a single moment for Dawn Edelstein. She’s on a plane when the flight attendant makes an announcement: Prepare for a crash landing. She braces herself as thoughts flash through her mind. The shocking thing is, the thoughts are not of her husband but of a man she last saw fifteen years ago: Wyatt Armstrong. As the story unfolds, Dawn’s two possible futures unspool side by side, as do the secrets and doubts long buried with them. Dawn must confront the questions she’s never truly asked: What does a life well lived look like? When we leave this earth, what do we leave behind? Do we make choices . . . or do our choices make us? And who would you be if you hadn’t turned out to be the person you are right now?