Magnus is haunted. He is trying to make a life for himself in Edinburgh, but memories of Claire, his sister, who died mysteriously when working in Africa, follow him everywhere. Or are they memories? Why is Magnus adopting Claire's interest in fashion, her romantic grudges, her links to a secretive boarding school? Is Claire herself beginning to take over his life, and his mind? As Magnus's attempts to free himself from his sister's influence grow more desperate, the boundaries between himself and his sister begin to blur. But is he imagining things, or is it really Claire? And how will he escape her?
