During a perfect spring evening on Nantucket, a violent storm erupts and a dome of crawling, colored fire blankets the island. When the howling winds subside and the night skies clear, the stars appear to have shifted. The mainland has become a wilderness of unbroken forest, where tools of bronze and stone litter the beaches, and primitive natives scatter in terror.

Jeremy Wainman is an archaeologist who has achieved a lifelong dream: to travel to Mars and explore the dead cities of the Deep Beyond.

Teyud Zha-Zhalt is the Martian mercenary the Terrans hire as guide and captain of the landship Intrepid Traveller. A secret links her to the deadly intrigues of Dvor il-Adazar, the City That Is a Mountain, where the last aging descendant of the Tollamune Emperors clings to the remnants of his power.

Michael Havel was flying over Idaho en route to the holiday home of his passengers when the plane's engines inexplicably died, forcing a less than perfect landing in the wilderness. And, as Michael leads his charges to safety, he begins to realize that the engine failure was not an isolated incident.

The first novel of the rise and fall of the Drakan Empire, an alternative history saga. In Marching Through Georgia, the Draka begin their conquest of the globe as they fight and best that more obvious horror, the Nazis.

 In 1912, just months before the election, President Taft dies suddenly, and Teddy Roosevelt wastes no time in grabbing power as he wins another term as president. By force of will, he ushers the United States into a new, progressive era with the help of the Black Chamber, the mysterious spy organization watching his back.  

New York Times best-selling author Eric Flint has received glowing critical praise for his Ring of Fire alternate history series. In this first installment, a West Virginia town is transported from the year 2000 to 1631 Germany at the height of the Thirty Years’ War. Thrust into conflict, the town residents must also contend with moral issues such as who should be considered a citizen.

War seethed across the planet. Machines soared through the air, churned through the seas, crawled across the surface, pushing ever forward, carrying death. Earth was engaged in titanic struggle. Germany, Russia, France, China, Japan: the maps were changing day by day. The hostilities spread in ever-widening ripples of destruction: Britain, Italy, Africa...the fate of the world hung in the balance. Then the real enemy came.

A military unit is thrust back into Paleolithic times with only their guns and portable hardware. Ten soldiers on convoy in Afghanistan suddenly find themselves lost in time. Somehow they arrived in Earth's Paleolithic Asia. With no idea how they arrived or how to get back, the shock of the event is severe. They discover groups of the similarly displaced: imperial Romans, Neolithic Europeans, and a small cadre of East Indian peasants.

On their way to fight in the Mexican-American War, a group of American soldiers are swept away to a strange and deadly alternate Earth in this thrilling new adventure set in the world of the New York Times best-selling Destroyermen series.

Pressed into service when World War II breaks out in the Pacific, the USS Walker---a Great-War vintage "four-stacker" destroyer---finds itself in full retreat from pursuit by Japanese battleships. Its captain, Lieutenant Commander Matthew Patrick Reddy, knows that he and his crew are in dire straits. In desperation, he heads Walker into a squall, hoping it will give them cover---and emerges somewhere else.

Hugo Award winner Harry Turtledove is the master of alternate history. In American Front he envisions World War I as it may have been if fought on American soil. The United States and Germany clash with the Confederacy, France, and Britain as the machines of modern warfare litter the landscape with carnage. Meanwhile, oppressed southern blacks head toward a fateful confrontation.

It's the year 2277. For 50 years, Earth has received mysterious data transmissions from random locations in deep space. The streams include advanced technology, allowing humans to achieve faster-than-light travel virtually overnight. As we prepare to take our first tentative steps into interstellar space, we know almost nothing about our alien benefactors, and their motivations remain unexplained.

A generation after the South wins the Civil War, it annexes critical territory in Mexico. Outraged, the United States declares total war. This time the American army faces danger on all sides--Confederates, outlaws, Apaches, French, and even the British. George Custer and Teddy Roosevelt fight hard and give the Americans hope. But to win, they need a commander as brilliant as Stonewall Jackson, and they must stop Jeb Stuart’s glorious cavalry.

Roger Ramius Sergei Chiang MacClintock was young, handsome, athletic, an excellent dresser, and third in line for the Throne of Man. So it wasn't surprising that he became spoiled, self-centered, and petulant. After all, what else did he have to do with his life?

When Earth herself lay under siege by an enemy humankind could not defeat, mankind undertook one last throw of the dice: Operation Ark. Earth's final colonizing expedition was meant to build a new civilization, on a planet so distant even the Gbaba might never find it, and without the high-tech infrastructure whose emissions might betray its location.