P. G. Nagle, "author of some of the best fiction written about Texas history" (Edward T. Cotham, Jr., author of Battle on the Bay: The Civil War Struggle for Galveston), writes with power and poignancy of a bloody campaign little chronicled but of great strategic to both North and South. Nagle tells the story of the struggle for dominance among the bayous and rivers of the Mississippi basin in an authoritative narrative both unflinching and compassionate,...