That Mad Game is a novel of World War II. It is the story of two brothers, born to an English mother and a German father. Raised in both countries, James chooses to join the Royal Navy and fight Germany. John, however, is tasked with a grimmer duty -- to remain in Germany, fight as a tank commander in the Panzer Corps, and spy for for England. After being wounded in action, John plays a dangerous game as the fox in the henhouse working at German Intelligence Headquarters. James patrols the English channel, helping to stop infiltration and watching for a potential invasion. Both will find love and adventure in this gripping tale of war and brotherhood.