After the West Virginia town of Grantville was unceremoniously hurled back through time to the 1630s, the seventeenth century would never be the same. Teenage capitalist girls have formed an investment group; a linotype operator, whos...

National bestselling author S. M. Stirling introduces us to the first generation of people to come of age on an Earth where technology no longer functions.

In this alternate history of the Second World War, New York Times bestselling author Harry Turtledove poses the question, Suppose Roosevelt, Stalin, Churchill, Hitler, and Hirohito had united to conquer an even greater foe?

National bestselling author S. M. Stirling introduces us to the first generation of people to come of age on an Earth where technology no longer functions.

Swept from the World War II Pacific into an alternate world, Lietenant Commander Matthew Patrick Reddy and the crew of the USS Walker have allied with the peaceful Lemurians in their struggle against the warlike, reptilian Grik. But t...

Jay Lake's first trade novel is an astounding creation.  Lake has envisioned a clockwork solar system, where the planets move in a vast system of gears around the lamp of the Sun. It is a universe where the hand of the Creator is vis...

When William of Normandy, whom history will call the Conqueror, rises to power, the fate of the land rests on actions inspired by the words found in an ancient scroll. It is known as The Prophecy, and it reveals secrets about the futu...

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 ...

Usually Crosstime Traffic concerns itself with trade. Our world owns the secret of travel between parallel continuums, and we mean to use it to trade for much-needed resources with the worlds next door. Preferably without letting th...

During World War II, three of the world's deadliest foes are forced to join efforts to save the planet from aliens, but Earth might be completely destroyed in order to win the war, in the conclusion of Harry Turtledove's Worldwar seri...