Beschreibung:
During Graham Ison's thirty year career in Scotland Yard's Special Branch he was involved in several espionage cases. He also spent four years at 10 Downing Street as Protection Officer to two Prime Ministers.
March, 1918. The Great War is grinding slowly to its bloody finale. Divisional Detective Inspector Ernest Hardcastle, head of the Whitehall Division of the Metropolitan Police, is called to a body is recovered from the Thames.