Them Bones

Madison Yazoo Leake, of the bombed-out, radiation-ridden 21st century, wanted to go back in time to stop World War III before it began. When he stepped through the time portal, he thought he was entering 1930s-era Louisiana. Instead, he found himself in a world where Arabs had explored America, Christianity and the Roman Empire had never existed, and Aztecs performed human sacrifices near the Mississippi as wooly mammoths roamed nearby...