A New York Times Bestselling Author On the teeming Thames waterfront one summer afternoon, William Monk witnesses the horrifying explosion of the Princess Mary, sending nearly two hundred merrymakers to their deaths. This was no accident, and as commander of the River Police, Monk should handle the case. But it is given to the Metropolitan Police, and an Egyptian man is swiftly caught, tried and sentenced to die. And almost as quickly, Monk discredits their evidence.