Callaghens business is soldiering. For twenty years hed fought all over the world, from China to the deserts of California; now hes a private in the U.S. Cavalry, poorly paid, his enlistment about to run out. Hes ready to move onuntil 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 goldor does it? To find out, Callaghen will have to fight the toughest war of his life: against a fierce Indian warrior, a vindictive commanding officer, and a ruthless gang of outlaws wholl turn what may be a river of gold into a river of blood.From the Paperback edition.