Callaghen (Louis L'amour's Lost Treasures)

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"Callaghen's business is soldiering. For twenty years he fought all over the world, from China to the deserts of California; now he's a private in the U.S. Cavalry, poorly paid, his enlistment about to run out. He's ready to move on ... until he comes across a startling discovery: a treasure map belonging to a dead lieutenant who may not have been all that he seemed. The map points the way to an underground river of gold ... or does it? To find out, Callaghen will have to fight the toughest battle of his life: against a fierce Indian warrior, a vindictive commanding officer, and a ruthless gang of outlaws who'll turn what may be a river of gold into a river of blood."--Page 4 of cover