Crosstime Traffic — by Harry Turtledove

• Dec-2003
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Jeremy Solter is a teenager growing up in the late 21st century. During the school year, his family lives in Southern California--but during the summer the whole family lives and works in the city of Polisso, on the frontier of the Roman Empire. Not ...

• Oct-2004
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In a parallel-world 21st-century San Francisco where the Kaiser's Germany won World War One and went on to dominate the world, Paul Gomes and his father Lawrence are secret agents for our timeline, posing as traders from a foreign land. They run a st...

• Jan-2006
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In the twenty-first-century Kingdom at Versailles, the roads are terrible and Paris is a dirty little town. Serfdom and slavery are both common, and no one thinks that's wrong. Why should they? Most people spend their lives doing backbreaking farm wo...

• Sep-2006
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Time travel doesn't work. You can't go backward or forward; you're stuck at "now". What you can do is travel sideways, to the same "now" in another timeline where history turned out differently. So far, only our home timeline has figured out how to d...

• Jun-2007
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The Soviet Union won the Cold War. The Russians were a little smarter than they were in our own world, and the United States was a little dumber and a lot less resolute. Now, more than a century later, the world's gone Communist, and capitalism is a ...

• Jul-2008
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THE MISSION OF CROSSTIME TRAFFIC: TO TRADE WITH PARALLEL EARTHS WITHOUT EVER REVEALING THE SECRET OF CROSSTIME TRAVEL. IT'S A TOUGH JOB. In a Los Angeles where nuclear war broke out back in 1967, survival is a matter of neighborhood versus neighborh...