History professor Benjamin Schroder lives a happy life. He has a job he loves in a profession he adores. Then everything changes. A student's dissertation on Operation Yellow Brick, the Pacific Allies' invasion of Vladivostok, staged through occupied Japan to meet their Imperial German allies sets off a psychotic episode in SchrÞoder. It has to be psychotic, right? SchrÞoder is flooded with memories of a different, ghastly world in which Operation Yellow Brick never happened. Memories of helpless civilians slaughtered in extermination camps. A world where the Chinese Communists succeeded. Where the Middle East became a festering sore of bloodshed and fanaticism. Worst of all—a world filled with thousands of nuclear warheads waiting to launch! Then a lunatic knocks on SchrÞoder’s door. He’s a man with an impossible story about alternate realities, time travel, temporal knots, and a dozen doomed universes which must inevitably die. It’s all beginning to sound... true. And if it is, then Benjamin SchrÞoder could be the one man who will decide which universe lives and which dies. Including the universe that contains the woman he loves more than life itself.