Water, water, everywhere: His brother has drowned, but Carl can't remember a thing. Until it all comes flooding back...with a vengeance. By the author of the internationally bestselling NUMBERS seriesWith a jolt, Carl opens his eyes. He's on the bank of a lake, soaked to the bone. Rob, his brother, is being zipped up in a body bag. And a girl, drenched and trembling, is talking to the police. Who is she? What happened in the water? And why...