It's 1898. Kismet brings about a chance reunion at a London club between Dr. Watson and Colonel "Maiwand Mike" Fenlon, former military comrades from their Northwest Frontier days and the desperate Battle of Maiwand. A week later an urgent cable seeking Sherlock Holmes's help arrives from the Bailiwick of Guernsey, a British Crown Dependency 30 miles off the coast of Normandy. A retired high-ranking British Indian Army officer who commanded the troops...