Get ready to experience two more origin stories in the Backyard Starship universe.

Indiana Jones meets The X-Files in this thrilling, globe-spanning adventure about the greatest treasure hunt of all time—where ancient secrets collide with cutting-edge technology. In the high-stakes world of ancient artifacts and clandestine organizations, a trio of unlikely misfits are drafted into a desperate race to prevent the assembly of a long lost device.

As a powerful, cybernetically enhanced elite soldier her job is to do all the dirty work for the mega-corporation she belongs to. She and her elite cyborg squad are deployed on the most dangerous missions – to protect Olympias from threats outside and inside at any cost. One day, a malfunction in her implants separates her from the all-controlling grid. For the first time in her life, Nephilim is free.

Nephilim is a Guardian Angel, one of the cybernetically enhanced super-soldiers, created to protect and destroy. Protect the Olympias Conglomerate, the mega-corporation that owns them, and destroy its enemies– at any cost. Nephilim is ruthless, sexy, and the best of these elite cyborgs–an unstoppable killing machine. But like all of her kind, she wasn’t born like that; she was made.

Homicide detective Siro Ferreira-Nunes must solve his most challenging case. More and more people end up dead in the “city of dreams,” an allegedly perfect society. The victims haven’t just been murdered; they’ve been also horribly mutilated and stripped of their neural implants and augmentations. This is not the work of a serial killer but the signature of crime syndicates who sell the costly augmentations on the black market. A specialist in organized crime, detective Ferreira-Nunes is the right man for job.

The Amazon rainforest holds a world-changing secret—a ship lost to time from another world. College student Will Kaufman unearthed the biggest archaeological discovery in human history… he just needs to find a way back to Earth to tell people about it. Four thousand years ago, a Federation bounty hunter Void ship crashed on a remote and primitive planet. There it remained until Will found it and accidentally reactivated it, launching him light-years away.

Carpenter Lowell is a disgraced Marine assigned to a remote US research station on Saturn's moon Enceladus, where scientists have made an extraordinary discovery in the ocean below. A special forces team, led by Lowell’s murderous former commanding officer, shows up to investigate. Almost immediately, everything begins to unravel. Something beneath the surface has been activated.

When Gunnar McConnell inherits a treasure map after his uncle's death, he goes on the hunt of his life and can't believe what he finds. There isn't just gold on those mountains, but the secret of a lifetime—a starship that can take him to worlds unknown, and a universe full of life.

Orphaned and alone, Moss is happy to have found a place in the world. But his humdrum working routines take a terrifying turn when a mysterious woman breaks into his apartment and hands him a data chip from his dead parents. Suddenly hearing messages revealing his benevolent employer has a far darker side, he braves the dangerous megacity streets in search of the truth. Surrounded by outcasts and criminals and running on instinct, Moss stumbles onto a rebel group intent on exposing their corrupt oppressors.

Dirriken Friedel used his aristocratic connections to rescue his troops. He didn't plan on starting a war or killing them himself. Now he spends his days in jail, waiting for an assassin sent by his dead officers families to end his misery. When he's broken out by off-duty marines he has a chance to start over, if he's worthy. During his ramshackle escape he collects a broken-down trading ship, a bitter former army officer, a genetically altered religious fanatic, a runaway ingenue, a sham engineer, and a murderous femme fatale.

The Hygrometric Dehabitation Region, or the "Zone," is a growing band of rainforest on the equator, where the heat and humidity make it impossible for warm-blooded animals to survive. A human being without protection in the Zone is dead in minutes. Twenty years ago, Marks went into the rainforest with a group of researchers led by Doctor Elaine Fell, to study the extraordinary climate and see if it could be used in agriculture. The only thing she learned was that the Zone was no place for people. There were deaths, and the program was cut short. Now, they're sending her back in.

The war against the AI was won but a new threat is rising. Hank Spears is content with his life as a scrapper until he unearths an artificial intelligence who warns him of a grave threat to all life in the universe. Since AI has long been outlawed and anyone caught harboring one is imprisoned or executed, the two must go on the run, fleeing into the far reaches of space. They must avoid capture, all for the sake of those who would imprison them. Looking for help from old friends to fight new enemies, Hank must find a way to save himself so that he can save the universe.

He knows it, and so does everyone else in the star nation of Prometheus. A promising naval career down the drain just because he accidentally killed 504 civilians. So, it's time for him to give up and accept a dead-end command on Persephone, the worst starship in the fleet. Until he meets the beautiful and cunning Jessica Lin, his new executive officer, who harbors a terrible secret of her own. Now, with an enemy warship four times their size bearing down on them, Brad's in a race to save Jessica and his stupid ship.

In the year 2107, the world has both made astounding leaps forward and reduced humanity to its most basic existence. While the megacorps and those who rule them enjoy lives of extraordinary comfort and ease, most people barely scrape by, doing whatever they can to keep going. Juliet Bianchi is one of the latter. She works cutting metal in a scrapyard and doesn't have much to show for it except for a small group of equally bereft, fiercely loyal friends. Still, she maintains a bright disposition, possessing more hope and optimism than anyone would expect her to—and she's going to need it.

After the Final War, after the appearance of the Bug aliens and their enforced peace, Shining Smith is still alive, still doing business from the old scrapyard bequeathed to her by her father. But Shining is now something more than human. And the scrapyard is no longer just a scrapyard, but a place full of secrets. This life she has built, while empty, is predictable and safe. Until the only friend left from her previous life shows up, dead, in the back of a scrapped Tesla warplane. Clutched in her cold fingers is a note to Shining - warning her of a coming attack.

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

Two astronomers have detected a strange, pulsing signal from deep space. Within hours, the US government goes into lockdown, restricting airspace and scrubbing scientific data. Was the signal an intercepted communication revealing alarming plans for an enemy’s military strike? Or has humanity at long last found proof of extraterrestrial life?

It’s 1984, and life has changed beyond recognition. Airstrip One, formerly known as Great Britain, is a place where Big Brother is always watching, and nobody can hide. Except, perhaps, for Winston Smith. Whilst working at the Ministry of Truth, rewriting history, he secretly dreams of freedom. And in a world where love and sex are forbidden, where it’s hard to distinguish between friend and foe, he meets Julia and O’Brien and vows to rebel.

Six days ago, astronaut Mark Watney became one of the first people to walk on Mars. Now, he's sure he'll be the first person to die there. After a dust storm nearly kills him and forces his crew to evacuate while thinking him dead, Mark finds himself stranded and completely alone with no way to even signal Earth that he’s alive - and even if he could get word out, his supplies would be gone long before a rescue could arrive. But Mark isn't ready to give up yet.

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.

As a powerful, cybernetically enhanced elite soldier her job is to do all the dirty work for the mega-corporation she belongs to. She and her elite cyborg squad are deployed on the most dangerous missions – to protect Olympias from threats outside and inside at any cost. One day, a malfunction in her implants separates her from the all-controlling grid. For the first time in her life, Nephilim is free.

Nephilim is a Guardian Angel, one of the cybernetically enhanced super-soldiers, created to protect and destroy. Protect the Olympias Conglomerate, the mega-corporation that owns them, and destroy its enemies– at any cost. Nephilim is ruthless, sexy, and the best of these elite cyborgs–an unstoppable killing machine. But like all of her kind, she wasn’t born like that; she was made.

Gabriel Stone, an active duty US Marine, and Chloe Lidell, a resourceful Texas farm girl, are thrust into a deadly game where each round is more perilous than the last. Joined by a band of misfits—including a lovable service droid named Shit Bot—Gabriel and Chloe must navigate treacherous rounds, form alliances, and uncover a diabolical alien agenda. With every victory, they edge closer to the heart of the mystery…

Homicide detective Siro Ferreira-Nunes must solve his most challenging case. More and more people end up dead in the “city of dreams,” an allegedly perfect society. The victims haven’t just been murdered; they’ve been also horribly mutilated and stripped of their neural implants and augmentations. This is not the work of a serial killer but the signature of crime syndicates who sell the costly augmentations on the black market. A specialist in organized crime, detective Ferreira-Nunes is the right man for job.

They banned him from space. But someone has offered him a way back. Can he afford the price? Famed engineer and test pilot Jericho Fox has been grounded for reasons he'd rather put behind him. But a political leader from a rival party offers to send him back to space. Fox finds himself stuck between working for the enemy and doing what he loves again. Meanwhile, high above Earth on Astraea Station, decorated astrophysicist Dr. Evelyn Park is on the verge of a scientific breakthrough that could make history.

When a salvage job on an old battlefield goes awry, Kril's left with no crew, no food, a suspiciously absent client, and far too many enemies. Fortunately, it's a big universe, and he's got a fast ship and the best pilot in twenty light-years to watch his back. His journey to keep 'er flying and get a crew back together will take him from rescue operations in collapsing freighters to fighting dinosaurs in the sewage canals of pirate paradises and to points beyond. The odds are stacked against him, but Kril keeps it simple.

In the distant future, humanity wages war on many fronts. In the core systems resides a deity for all to follow—Eden. The youthful monarch is symbolic, serving annual terms to keep humanity blessed under her salvation.

Umbra is the first book in the Sentient Stars trilogy, an intergalactic, space opera, adventure story, with a slow burn enemies to lovers romance, told from 3 POV’s with fully sentient starships, a militaristic society, alien worlds, and a signal in the darkness that threatens to destroy humanity.

Grant Masterson is a man with nothing left to lose.... A disgraced ex-cop, framed by a crooked politician, abandoned by his family, he’s forced into the life of a bounty hunter just to survive. Tracking down a traitor who stole military-grade weapons to sell on the black market, Masterson finds out things aren’t as simple as the wanted poster made them seem. Because Delia Beckett isn’t a traitor, simply a patsy, and the forces manipulating her may be the same ones responsible for Masterson’s fall from grace.

There are only three real powers in the Spiral: the corporate power of the Trust versus the Union's labor's leverage. Between them the Guild tries to keep everyone's hands above the table. It ain't easy. Branded a Guild deserter, Jal "accidentally" lands a ride on a Guild ship. Helmed by an AI, with a ship's engineer/medic who doesn't see much of a difference between the two jobs, and a "don't make me shoot you" XO, the Guild crew of the Ambit is a little . . . different.

Noth, humanity's greatest threat, has awoken and he's out for blood. So is Cole and his merry crew of misfits. They have the means to get it, too. Sort of. Their weapon might not be fully functional, but it just needs a power boost. How hard can it be? Pretty freaking hard, as it turns out. Especially when their enemies will do anything to stop them. When someone close to the crew is murdered and Cole is framed for the deed, things only get more complicated. Under the circumstances, that problem should be put on the backburner, but nothing is ever as it seems.

In the year 3152, humanity is at war with three species who suppress our existence. While one is more ruthless than the others, our species is viewed as an unstable threat to the galactic balance. Resources are finite, battle is ubiquitous, and the enemies of Earth are unrelenting. The average human is born to fight for the species’ survival, deprived of a normal life so that one day a future generation may know peace. The expansions of Alpha Centauri are under siege while the Wolf System is down to just a few outposts. Not all is lost, though.

Catherine "Cat" Leblanc is an orphan that is about as far from super-rich as one can be. When the Incursion alarms start blaring and the sky starts raining hungry xenos, it's just another blemish on an already piss-poor afternoon.

Faebos is home to violent and nasty creatures, but also great beauty. Survival will mean cooperation between PS12’s captives and captors. But will it be enough? Faced with hardship no one expected, needing to tap into old skills and new, Predaxes and Malik find themselves in their own form of Purgatory. Rogue Stars is a brand new military space opera series by #1 Audible and Washington Post bestseller Jaime Castle, creator of the Black Badge series. Perfect for fans of David Weber, Larry Correia, JN Chaney, and Rick Partlow.

Humanity is on the brink of annihilation. Only one man can turn the tide. For centuries, we explored the stars and settled new worlds. But a mysterious alien threat emerged, launching devastating attacks and seizing entire star systems. Every fifty years they come, silent and relentless, before disappearing again into the dark. And as they close in on humanity’s home worlds, one more defeat could mean total extinction.