Franklin Roosevelt is the assistant secretary of defense. Thomas Dewey is running for president with a blunt-speaking Missourian named Harry Truman at his side. Britain holds onto its desperate alliance with the U.S.A.'s worst enemy, while a holocaust unfolds in Texas. In Harry Turtledove's compelling, disturbing, and extraordinarily vivid reshaping of American history, a war of secession has triggered a generation of madness. The tipping point has come at last.