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.

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.

The New York Times best-selling master of alternate history delivers the captivating first novel in his new World War II series. Harry Turtledove imagines how the war in Europe would have ended had British prime minister Chamberlain refused to allow Hitler's annexation of the Sudetenland.

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.

There's a reason We Are Legion was named Audible's Best Science Fiction Book of 2016: Its irresistibly irreverent wit! Bob Johansson has just sold his software company for a small fortune and is looking forward to a life of leisure. The first item on his to-do list: Spending his newfound windfall. On an urge to splurge, he signs up to have his head cryogenically preserved in case of death. Then he gets himself killed crossing the street. Waking up 117 years later, Bob discovers his mind has been uploaded into a sentient space probe with the ability to replicate itself.

In 1914, they called it The Great War, and few could imagine anything worse. For nearly three decades, a peace forged in blood and fatigue has held sway in North America. Now, Japan dominates the Pacific, the Russian Tsar rules Alaska, and England, under Winston Churchill, chafes for a return to its former glory. But behind the façade of world order, America is a bomb waiting to go off. Jake Featherston, the megalomaniacal leader of the Confederate States of America, is just the man to light the fuse.

Following the initial Martian invasion of England, President Theodore Roosevelt tries to prepare the United States for the potential of another Martian incursion. As the possibility of a stronger invasion is increasingly clear, the US government tries to mobilize nations to share information and technology to defend humanity. Newly minted ordinance officer Andrew Comstock has been placed in charge of developing new technology that has to be tested on the fly in a race against time if humanity is to survive.

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.

A mysterious convergence of natural disasters threatens to destroy life as we know it, and people across the United States are going missing. With no one left to investigate, Special Agent Kendra Baker takes the case, trying to solve the disappearances before she’s out of time. Among those abducted is Valeria Miller, the daughter of ex-Marine Corporal Andrew Miller, and he’ll stop at nothing to find her. With the help of an unstable conspiracy theorist, they find themselves on the trail of a reclusive billionaire who just might have all the answers. 

Shortlisted for the Audiobook Download of the Year, 2007.
Here is the novel that will be forever considered a triumph of the imagination. Set on the desert planet Arrakis, Dune is the story of the boy Paul Atreides, who would become the mysterious man known as Maud'dib. He would avenge the traitorous plot against his noble family and would bring to fruition humankind's most ancient and unattainable dream.

In the not-too-distant future, the United States loses its status as a world Superpower. With the military cut to a barebones level and American leaders focused solely on the nation's internal struggles, the door will open for new powers to emerge on the world stage. In the wake of this power vacuum, China and Russia begin to flex their military muscles and expand their dominance in the world. They have the most up-to-date technological innovations ready for battle: railguns, unmanned drone tank vehicles, exoskeleton suits, and cyber warfare.

In Battlefield Ukraine, all the usual suspects are hard at work: battles over resources, money, and miscommunication. This predictive novel explores a potential war between NATO and Russia over the fate of the separatist regions in eastern Ukraine. Lines have been drawn in the sand, but how firm are they? Will the massive disinformation campaign by the Russians trick the new American administration to do their bidding? Will the new American president back down, or will the world creep one step closer toward global war?

There are many who have tried unsuccessfully to defeat the USA through direct action in the past, but technology has rewritten those old rules. A new enemy has arisen, more cunning and crafty than before. A cabal of wealthy puppet masters has created a plan to divide America from within. Cloaked in secrecy and blind loyalty to their leader, these masters of manipulation will embark upon a journey that will change the future of humanity. As the next US presidential election begins, will it be free and fair, or will it be rigged?

The impossible has spawned the unthinkable. In 2021, a quantum military experiment goes horrifically wrong. A multinational taskforce of ultramodern warships is suddenly transported back in time to 1942...right into the path of the US naval battle group bound for Midway Atoll. History is rewritten in an instant as the future smashes into the past, and high-tech hardware goes head to head with World War Two technology. In the chaos that ensues, thousands are killed, but the maelstrom has only just begun.

Alec works in the Detroit Overseer-factories, building a mysterious alien device. When three strangers appear, he's provided an opportunity to escape after years of servitude. Cole, a Freeborn loner, encounters Lina after her village is destroyed by the alien Occupation. Together, they make the arduous journey to a fabled safe-zone, trying to stay one step ahead of the enemy drones on their trail. Dex is a Hunter, working for the Occupation to track down escaped factory slaves, or Roamers, at all costs. But his latest hunt uncovers a massive secret.