Double Eagles — Andrew J. Fenady

Captain Thomas Gunnison has been entrusted with an extremely vital cargo. His commerce ship, the Phantom Hope, is laden with two thousand Henry rifles, weapons that could turn the tide of victory for the Union. Even more important, though, is fifteen million dollars in newly minted double eagles, money the Union needs to finance the war effort. So when the Phantom Hope is attacked and crippled, Gunnison makes the only possible decision--he and his men will transport the gold across the rugged landscape of Mexico, to Vera Cruz. Gunnison's caravan could change the course of history ... if bloodthirsty Mexican guerrillas and Rebel soldiers don't stop it first!