Set in a world in which the Roman Empire never fell, Clash of Eagles finds Praetor Gaius Marcellinus leading his 33rd Legion into Nova Hesperia. But there his conception of the world is challenged by encounters with the Powhatani, Iroqua, and Cahokiani tribes.

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.

During the test flight of a prototype faster-than-light craft, Lt. Commander Ky is flung into an ancient past that never existed. Rome has fallen, defeated by the mighty Carthaginian Empire, its survivors chased off the continent and onto what had been the remote province of Britannia. Hounded by the Carthaginians bent on conquering the known world, Rome is on the verge of destruction. Stranded and alone, except for a tactical AI implanted in his head, Ky has lost everything and must find a way to live in a world different than anything he's ever known.

Inheriting your uncle's supervillain business is more complicated than you might think. Particularly when you discover who's running the place. Charlie's life is going nowhere fast. A divorced substitute teacher living with his cat in a house his siblings want to sell, all he wants is to open a pub downtown, if only the bank will approve his loan. Then his long-lost uncle Jake dies and leaves his supervillain business (complete with island volcano lair) to Charlie. But becoming a supervillain isn't all giant laser death rays and lava pits.

Five days after Owen Zastava Pitt pushed his insufferable boss out of a 14th story window, he woke up in the hospital with a scarred face, an unbelievable memory, and a job offer. It turns out that monsters are real. All the things from myth, legend, and B-movies are out there, waiting in the shadows. Some of them are evil, and some are just hungry. Monster Hunter International is the premier eradication company in the business. And now Owen is their newest recruit.

In this alternate history of the American frontier and the Jacksonian era, a small change takes place in the Battle of the Horseshoe Bend during the War of 1812. What results is a cascade of new developments that becomes an avalanche. In our world, Ensign Sam Houston, just turned 21, led the charge on the creek barricade in that battle and almost died from a terrible wound that took him a year to recover from. In this world, his wound is minor, so he is able to continue fighting the British—and develop his close relationship with Andrew Jackson much sooner.

Nick Morrison always wanted to be an astronaut. When a start-up company recruits him to build a lunar launch system at the moon’s south pole, Nick gladly leaves behind his troubled life on Earth—but Nick doesn’t know that the company is in financial and legal trouble. Deprived of support from Earth, the team on the moon must figure out how to survive on their own. Worse yet, there’s another base at the lunar south pole, run by a ruthless contractor who has big plans for the moon...and for Earth.

Rumors begin to spread of a species of hyperintelligent, dangerous octopus that may have developed its own language and culture. Marine biologist Dr. Ha Nguyen, who has spent her life researching cephalopod intelligence, will do anything for the chance to study them. The transnational tech corporation DIANIMA has sealed the remote Con Dao Archipelago, where the octopuses were discovered, off from the world. Dr. Nguyen joins DIANIMA’s team on the islands: a battle-scarred security agent and the world’s first android.

Deep in the Arctic wilderness, Peter Freuchen awoke to find himself buried alive under the snow. During a sudden blizzard the night before, he had taken shelter underneath his dogsled and become trapped there while he slept. Now, as feeling drained from his body, he managed to claw a hole through the ice only to find himself in even greater danger: his beard, wet with condensation from his struggling breath, had frozen to his sled runners and lashed his head in place, exposing it to icy winds that needed only a few minutes to kill him. If Freuchen could escape that, he could escape anything.

Lynn Raven may be the boss master of WarMonger 2050 with her online persona of "Larry the Snake", but when the CEO of Tsunami Entertainment personally asks her, as a favor, to beta test a new augmented-reality game, she has to face her greatest fear: going outside and dealing with, ugh, people.

Dr. Sam Anderson is one of the most celebrated scientists in history. Ten years ago, he invented a device that changed the world forever. Now his life is about to be ripped apart—and his own creation may be to blame. One fateful morning, Sam discovers that his girlfriend has been murdered and that his daughter is accused of the crime. Sam believes she's innocent, but he can't prove it. There's only one thing he can do to save his daughter: confess to the crime. And so he does. But in the future, murderers aren't sent to prison. They're sent to the past.

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.

Tesla Crane, one of the richest women in the world, is on her honeymoon on an interplanetary space liner, cruising between Earth and Mars. She’s traveling incognito and is reveling in her anonymity. Then someone is murdered and her husband is named as the prime suspect. To save him from the frame-up, Tesla will risk exposure and face demons from her past. Even though doing so might make her the next victim.

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.

Nancy Kranich (played by Emmy-nominated actress Natasha Lyonne of Russian Doll and Orange Is the New Black) is a night nurse on an orbiting space station. But Nancy hates her job, is sick of space, and longs to find adventure and a safe place to smoke cigarettes that won’t blow everyone up. But when Nancy gets caught up in an outer-space conspiracy involving President Kennedy, former vice-president Richard Nixon, and an intergalactic object that could change the course of history, she gets way more adventure than she bargained for.

The Year is 2040. The Marines have landed on Mars to guard the unearthed secrets of an ancient and dangerous alien race: Ourselves. Scientists have discovered something astonishing in the subterranean ruins of a sprawling Martian city: startling evidence of an alternative history that threatens to split humanity into opposing factions and plunge the Earth into chaos and war.

Tucked away in a high-tech Tactical Operations Center, inside an isolated safehouse in the Horn of Africa, sits Agency analyst Zack Altringham. He is Kenyan-born, Princeton-educated, badly burnt-out - and condemned by his language and cultural skills to a lifetime of fighting America's shadow counter-terror wars.

Humankind has escaped a dying Earth and set out to find a new home among the stars aboard an immense generation ship affectionately named the Ark. Bryan Benson is the Ark's greatest living sports hero, enjoying retirement working as a detective in Avalon, his home module. The hours are good, the work is easy, and the perks can't be beat. But when a crew member goes missing, Bryan is thrust into the center of an ever-expanding web of deception, secrets, and violence.

When humanity reaches for the stars, our probes are destroyed. They crash into an incredibly advanced piece of technology: a massive force-field. Unknown beings have placed a barrier around our star and planets, enclosing us within. We’re locked inside a Great Sphere. Was this invisible obstacle built to imprison us - or to protect us? No one knows the truth, but it soon becomes clear the barrier has leaks. Aliens infiltrate and try to sabotage our efforts to escape our cage.

When the Colony on Hayden's world went black, a team was sent to investigate. It was supposed to be a training mission: skip in, find out the Casimir Transmitter had gone dead, report back and wait for resupply from the Fleet. By the time the only surviving member of the team made landfall, it was spectacularly clear that this wasn't a training mission.

Astronaut David Dixon's first mission to space goes horribly awry when a gunfight breaks out on a Russian space station. He finds himself making an emergency landing from orbit and becomes the most wanted man on Earth. Desperate to unravel the plot he's found himself in, he takes his pursuers on a wild chase from space to the backstreets of Rio and beyond. Dixon's survival relies on his skills as a pilot and willingness to do whatever it takes.

In the summer of 1947, an unidentified object crashed in Roswell, New Mexico. There were no survivors. Now it's happened again. But this time, two creatures have emerged from the wreckage alive.

On June 30, 1908, an object fell from the sky, releasing more energy than a thousand Hiroshima bombs. A Siberian forest was flattened, but the strike left no significant crater. The anomaly came to be known as the Tunguska Event, and scientists have never agreed whether it was the largest meteor strike in recorded history - or something else. Alien artifacts have been uncovered since the 1908 event, and a new star drive is discovered.

The award-winning, bestselling author's first novel. The beamjacks work in zero-gravity constructing satellites in the vacuum of deepest space. And they're not going to let the military control them anymore.

Dreamland is the place where the nation's top minds come to develop artillery and aircraft that push beyond the cutting edge. And where the Air Force's top guns come to test them, on the frontlines of a new era in warfare. The fiasco of a spy's infiltration has the Pentagon looking for an excuse to close Dreamland down. To clean up the mess, and save Dreamland from the congressional chopping block, Lt. Colonel Tecumseh "Dog" Bastian is sent in.

Cloaked by the mists of dawn, Task Force 61 - carrying tanks, aircraft, and over 5000 Marines - steams toward Syria with deadly intent. Their mission: rescue 100 hostages from a terrorist stronghold - alive. With realism seldom seen in military fiction, The Med is a magnificent and timely epic that brings the human drama of armed conflict compellingly to life.

Hybrid fighters merging human and alien technology. Massive cannon emplacements on the moon and Mars. A planetary defense force with the finest military personnel ever trained. For two decades we've known the enemy would return. The nations of Earth have collaborated on a unified defense program designed to defend the planet.

They came from the brightest star in the southern constellation of Carina. First they studied us. Now they're among us, threatening human existence as they search for the Starcore, the greatest device of the lost Polarions. Logan is captured in the Nevada desert but escapes in Greenland. There he finds an extraterrestrial stealth ship, giving him the means to take the battle to the enemy.

In your hands is the handwritten journal depicting one man's struggle for survival. Trapped in the midst of global disaster, he must make decisions; choices that ultimately mean life, or the eternal curse to walk as one of them. Enter, if you will, into the world of the undead.

Geoff and his friends live in Phocaea, a distant asteroid colony on the Solar System's frontier. They're your basic high-spirited young adults, enjoying such pastimes as hacking matter compilers to produce dancing skeletons that prance through the low-gee communal areas, using their rocket-bikes to salvage methane ice shrapnel that flies away when the colony brings in a big (and vital) rock of the stuff, and figuring out how to avoid the ubiquitous surveillance motes.