I don't want to tell you what happened. I want to tell you how it felt. Cassandra Williams is twelve; her little brother Wayne is seven. One day, when they're alone together, there's an accident, and Wayne is lost forever. Though his body is never recovered, their mother can't stop searching. The missing boy cleaves the family with doubt: How do you grieve an absence? And how does it feel? As C grows older, she relives and retells her story, and she sees her brother everywhere: in cafes, airplane aisles, subway cars. Here is her brother's older face, the light in his eyes, his lanky limbs, the way he seems to recognise her, too. But it can't be, of course. Or can it? And then one day, there's another accident, and C meets a man both mysterious and familiar, a man who's also searching for someone, as well as his own place in the world. His name is Wayne.