Anne-Marie Duff continues Cynan Jones' electrifying series set in the very near future - a future a little, but not quite like our own.Water is commodified and the Water Train that feeds the city is increasingly at risk of sabotage. Today: the wife of police marksman, John Branner, writes her husband a letter... for the last time.Reader: Richard GouldingWriter: Cynan Jones Producer: Justine WillettMusic: Original music by Kirsten Morrison