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WHILE WORLD WAR I WAS EXPLODING IN FOREIGN LANDS It's 1915. In Europe, men are dying in trenches. In Washington, sentiment is growing for war against the Kaiser. And in Mexico, an explosive plot is set in motion by a German agent, a deposed dictator, and an army of murderous rebels. A NEW WAR WAS BLAZING ALONG THE RIO GRANDE... Amidst the chaos of Pancho Villa's revolution, a force of embitteredTejanos has crossed the Rio Grande, burning ranches, killing Texans, and gathering fighters in its wake. For the Germans, the goal is to paralyze America. For a daring Special Agent and a Texas Ranger, the mission is to go deep behind enemy lines and cut out the heart of an astounding conspiracy--before the West is drawn into a bloody war of its own...