More than a year ago, Kim babysat her grandson while her daughter went out for a date night with her boyfriend. The young couple never came home, and Kim never stopped searching, knowing Tallulah wouldn't leave her baby behind. So when a writer named Sophie finds an engagement ring buried in the woods near where the missing couple was last seen, Kim teams up with the stranger to uncover what Tallulah was hiding in the days before her disappearance in this latest unputdownable thriller from Lisa Jewell.