Count Hamnet Thyssen is a minor noble of the drowsy old Raumsdalian Empire. Its capital city, Nidaros, began as a mammoth hunters camp at the edge of the great Glacier. But that was centuries ago, and as everyone knows, its the nature of the great Glacier to withdraw a few feet every year. Trasamund, a clan chief of the mammoth-herding Bizogots, the next tribe north, has come to town with strange news. A narrow gap has opened in what they'd always thought was an endless and impregnable wall of ice.

Menedemos, the young dashing sea captain, and his helper, the scholarly Sostratos, are sea-traders from the Greek island of Rhodes. Fearless sailors, they will travel any distance to make a profit or to search for rich treasures. While they trade in fineries such as wine and silk (and even, to the chagrin of many, peacocks), they live in dangerous times with pirates, thieves, and barbarians.

It's 1974, and Jerry Stieglitz is a grad student in marine biology at UCLA with a side gig selling short stories to science fiction magazines, just weeks away from marrying his longtime fiancée. Then his life is upended by grim-faced men from three-letter agencies who want him to join a top-secret "Project Azorian" in the middle of the north Pacific Ocean—and they really don't take "no" for an answer. Further, they're offering enough money to solve all of his immediate problems.

Publius Quinctilius Varus, a Roman politician, is summoned by the Emperor, Augustus Caesar. Arminius, a prince of the Cherusci, is playing a deadly game. He serves in the Roman army, gaining Roman citizenship and an officer's rank, and learning the arts of war and policy as practiced by the Romans. An epic battle is brewing, and these two men stand on opposite sides of what will forever be known as the Battle of the Teutoberg Forest---a ferocious, bloody clash that will change the course of history.

What if mankind's "missing link", the apelike Homo erectus, had survived to dominate a North American continent where woolly mammoths and saber-toothed tigers still prowled while the more advanced Homo sapiens built their civilizations elsewhere? Now imagine that the Europeans arriving in the New World had chanced on these primitive creatures and seized the opportunity to establish a hierarchy in which the sapiens were masters and the "sims" were their slaves.

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.

In the extraordinary Worldwar tetralogy, set against the backdrop of World War II, Harry Turtledove, whom Publishers Weekly has called the "Hugo-winning master of alternate SF," wove an explosive saga of world powers locked in conflict against an enemy from the stars.

Senior investigator Khalid al-Zarzisi is a modern man, a product of the unsurpassed educational systems of North Africa and the Middle East. Liberal, tolerant, and, above all, rich, the countries and cultures of North Africa and the Middle East have dominated the globe for centuries. But one region has festered for decades: Europe. Now, Khalid has been sent to Rome, ground zero of backwater discontent. He and his partner Dawud have been tasked with figuring out how to protect the tinpot Grand Duke, the impoverished Pope, and the overall status quo.

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.

The year is 1901. Germany's navy is the second largest in the world; their army, the most powerful. But with the exception of a small piece of Africa and a few minor islands in the Pacific, Germany is without an empire. Kaiser Wilhelm II demands that the United States surrender its newly acquired territories: Guam, Puerto Rico, Cuba, and the Philippines. President McKinley indignantly refuses, so with the honor and economic future of the Reich at stake, the Kaiser launches an invasion of the United States, striking first on Long Island.

The world of man was brought to its knees with the zombie apocalypse. A hundred and fifty years have passed since man clawed and climbed his way back from the brink of extinction. Civilization has rebooted, man has begun to rebuild, creating new communities and society. It is on this fragile new shaky ground that a threat worse than the scourge of the dead has sprung... Once again, one man finds himself once thrust into the forefront of a war he wants nothing to do with and seemingly cannot win.

Some feel the Lady, newly risen from centuries in thrall, stands between humankind and evil. Some feel she is evil itself. The hardbitten men of the Black Company take their pay and do what they must, burying their doubts with their dead - until the prophesy: The White Rose has been reborn, somewhere, to embody good once more. There must be a way for the Black Company to find her....

Eric didn't ask to be a vampire. In fact he didn't even believe in them. Biting your own tongue with your fangs does a lot of convincing. Even so, being a part-time undead isn't as easy as you might think. It can let you hold down a day job, true, but sometimes the night "life" can be more than a little difficult, what with those bloodthirsty urges and predatory instincts kicking in.

Refusing to marry a pig farmer and joining the army, even if it means never seeing her family again, Paksenarrion begins an adventure that enables her to restore an overthrown ruler.

Apprenticed to a venerable wizard when his hunter and trapper parents disappear into the forest never to be seen again, Darian is difficult and strong willed - much to the dismay of his kindly master. But a sudden twist of fate will change his life forever when the ransacking of his village forces him to flee into the great mystical forest. It is here in the dark forest that he meets his destiny, as the terrifying and mysterious Hawkpeople lead him on the path to maturity.

Count Hamnet Thyssen is a minor noble of the drowsy old Raumsdalian Empire. Its capital city, Nidaros, began as a mammoth hunters camp at the edge of the great Glacier. But that was centuries ago, and as everyone knows, its the nature of the great Glacier to withdraw a few feet every year. Trasamund, a clan chief of the mammoth-herding Bizogots, the next tribe north, has come to town with strange news. A narrow gap has opened in what they'd always thought was an endless and impregnable wall of ice.

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.

Publius Quinctilius Varus, a Roman politician, is summoned by the Emperor, Augustus Caesar. Arminius, a prince of the Cherusci, is playing a deadly game. He serves in the Roman army, gaining Roman citizenship and an officer's rank, and learning the arts of war and policy as practiced by the Romans. An epic battle is brewing, and these two men stand on opposite sides of what will forever be known as the Battle of the Teutoberg Forest---a ferocious, bloody clash that will change the course of history.

January 1864: General Robert E. Lee faces defeat. The Army of Northern Virginia is ragged and ill-equipped. Gettysburg has broken the back of the Confederacy and decimated its manpower. Then, Andries Rhoodie, a strange man with an unplaceable accent, approaches Lee with an extraordinary offer. Rhoodie demonstrates an amazing rifle: its rate of fire is incredible, its lethal efficiency breathtaking - and Rhoodie guarantees unlimited quantities to the Confederates. The name of the weapon is the AK-47.

From the master of alternate history comes an epic of the second Civil War. It was an epoch of glory and success, of disaster and despair. 1881: A generation after the South won the Civil War, America writhed once more in the bloody throes of battle. Furious over the annexation of key Mexican territory, the United States declared total war against the Confederate States of America in 1881.

In the Hereditary Tyranny of Tartesh, what was once a vast sea basin is now a dried-out, unforgiving desert. When the kingdom's enemies try to shake down the Barrier Mountains and let the ocean in, Trench Park tour guide Radnal vez Krobir must stop them or be destroyed along with everything he holds dear. Down in the Bottomlands received the 1994 Hugo Award for Best Novella.

In the Hugo Award nominee Forty, Counting Down, computer genius Justin Kloster travels to the past to stop himself from making a terrible mistake. But all actions have their consequences. Then, in Twenty-One, Counting Up, Kloster's college life and romantic dreams are rudely interrupted when the 40-year-old Justin arrives from the future to save him from himself.

In the real world, Reinhard Heydrich, the number-two man in the SS and an architect of the Holocaust, was assassinated in Czechoslovakia in May 1942. In The Man with the Iron Heart, Heydrich survives that fated assassination attempt, only to hatch an insurgency as insidious as anything conceived by Osama bin Laden.

What if mankind's "missing link", the apelike Homo erectus, had survived to dominate a North American continent where woolly mammoths and saber-toothed tigers still prowled while the more advanced Homo sapiens built their civilizations elsewhere? Now imagine that the Europeans arriving in the New World had chanced on these primitive creatures and seized the opportunity to establish a hierarchy in which the sapiens were masters and the "sims" were their slaves.

On December 7, 1941, the Japanese launched an attack against U.S. naval forces stationed in Pearl Harbor, Hawaii. But what if the Japanese followed up their air assault with an invasion and occupation of Hawaii? This is the question explored by Harry Turtledove in Days of Infamy, with frightening implications.