City of Stone

In March 1916 a detachment of Pancho Villa's army invaded the sleepy New Mexico border village of Columbus. Villa's troops killed eighteen people, half of them local residents and half U.S. soldiers encamped nearby. A "punitive expedition" was immediately launched as Brigadier General John J. Pershing led five thousand American soldiers in search of Villa. Pershing's staff included Lt. George Patton, fresh out of West Point.
About half a million dollars in gold was to be used as mordida, bribery, to learn Villa's whereabouts and set him up for capture. British, German, and American spies pursued their differing interests along the border. But now, the anti-Villa bribery cache has vanished in the confusion of 1917 as Pershing's army lands in France.
Twenty-seven years later during a World War II visit to Canterbury, Patton challenges a family of English spies that has served the realm for a thousand years to find the gold and reveal the truth about other long-held secrets. Three sibling agents set out, one by one, to learn what happened to the gold amid the contemporary border carnage of drug smugglers that double as cattle rustlers. Their timing couldn't have been more disastrous. City of Stone is fiction - like much of what governments may try to pass of as history.