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Nothing wrecks Captain Eva Innocente’s vacation plans quite like an anonymous threat to vaporize billions of people. Hundreds of monoliths have suddenly materialized in space, broadcasting the same looped message: surrender or be exterminated. Is the universe being epically spammed?

The night the sky fell, Jack and Nora Abernathy’s daughter vanished in the woods. And Mia’s disappearance broke her parents’ already fragile marriage. Unable to solve her own daughter’s case, Nora lost herself in her work as a homicide detective. Jack became a shell of a man; his promising career as a biologist crumbling alongside the meteor strikes that altered weather patterns and caused a massive drought. It isn’t until five years later that the rains finally return to nourish Seattle.

New York Times best-selling author Ian Douglas delivers the action-packed second military sci-fi adventure in his Solar Warden series set in a wildly imaginative alternate present where conspiracy theories are terrifying realities and reptilian aliens team up with Nazis in space.

Nearly a thousand years removed from Earth, the remnants of humanity cling to existence inside giant, space faring creatures known as the Zenzee. Abused and exploited by humans for generations, these majestic animals nearly went extinct, but under the command of its newly minted ruler, Doka Kaleigh, life in the Parados I has flourished. Thanks to careful oversight and sacrifice by all of its crew, they are now on the brink of utopia, and yet Doka's rivals feel threatened by that success.

2425. The civil war between the United States of North America and the Pan-European Confederation is over. But before a new era of peace on Earth can begin, humankind must martial its interstellar forces as one fleet to engage in a war against an alien entity in Omega Centauri. Without provocation, it destroyed a Confederation science facility inhabited by 12,000 people, and it must be neutralized before it sets its sights on Earth.

War heroes aren't usually called out of semi-retirement and sent to the far reaches of the galaxy for a routine investigation. So when Colonel Carl Butler answers the call from an old and powerful friend, he knows it's something big - and he's not being told the whole story. A high councilor's son has gone MIA out of Cappa Base, the space station orbiting a battle-ravaged planet. The young lieutenant had been wounded and evacuated - but there's no record of him having ever arrived at hospital command.

The year is 2162. Thirty-eight years after first contact, Lord Commander Grayson St. Clair leads the Tellus Ad Astra on an unprecedented expedition to the Galactic Core, carrying more than a million scientists, diplomats, soldiers, and AIs. Despite his reservations about their alien hosts, St. Clair is deeply committed to his people - especially after they're sucked into a black hole and spat out four billion years in the future. Civilizations have risen and fallen. The Andromeda Galaxy is drifting into the Milky Way. And Earth is most certainly a distant memory.

Danika Silva can’t stand Lt. Greer Burns. Her roommate’s older brother may be sexy as hell, but he’s also a cold, unfeeling robot. She just wants to graduate and forget about her scowling superior. But when a dangerous mistake lands Danika on probation - under Greer’s watch - she’s forced to interact with the big, hulking jerk. Call him daily to check in? Done. Ride shotgun in his cruiser every night? Done. Try not to climb into his giant, muscular lap and kiss him? Umm....

Seventeen-year-old Ryn Whittaker is a Citadel: an elite, enhanced soldier specially chosen to guard a Rift, a mysterious and dangerous portal to alternate Earths scientists cannot control or close. Trained from the age of 14, Ryn can run faster, jump farther, and fight better than a Navy SEAL - which is good when you’re not sure if a laser-wielding Neanderthal or an axe-wielding Viking is trying to make it through the Rift and into your world. But the teenager’s military conditioning and education have not prepared her for the boy who crosses through.

Having battled aliens to prove humanity’s worth as a star-faring species, Admiral Trevor Gray has a new mission: follow the directives of the super-AI Konstantin and lead the star carrier America on a mission through time and space to determine if humanity can truly transcend into Singularity...and avoid the pitfalls that have plagued so many of the aliens Earth has encountered since it gained faster-than-light travel.

In the final days of World War II, the Allies ransacked Berlin. Third Reich scientists were highly sought-out prizes for Americans and Russians desperate to possess Nazi nuclear knowledge. But they failed to capture one of the most vital members of Adolf Hitler’s inner circle, Hans Kammler, a liaison with the Nazis’ silent partners whose technological wonders nearly helped the Axis win the war - the alien species the Germans called the Eidechse. More than seven decades later, US Navy SEAL Mark Hunter witnesses the impossible in North Korea....

Following his mission on Cappa, Colonel Carl Butler returns to a mixed reception. To some, he is a do-or-die war hero. To the other half of the galaxy, he’s a pariah. Forced into retirement, he has resettled on Talca Four where he’s now Deputy VP of Corporate Security, protecting a high-tech military company on the corporate battlefield - at least, that’s what the job description says. Really, he’s just there to impress clients and investors. It’s all relatively low risk - until he’s entrusted with new orders.

Earth is a distant memory. Habitable extrasolar planets are still out of reach. For generations, humanity has been clinging to survival by establishing colonies within enormous vacuum-breathing space beasts and mining their resources to the point of depletion. Rash, dreamy, and unconventional, Seske Kaleigh should be preparing for her future role as clan leader, but her people have just culled their latest beast, and she’s eager to find the cause of the violent tremors plaguing their new home.

Trevor Gray has been stripped of his command of the starship America and is unsure what to do with his life. Having dedicated so much of himself to the service, he knew following the super-AI Konstantin’s advice could have severe consequences. He just never thought he would be out of the fight. Because that’s what Earth is in: a fight against a sinister alien force that is so technologically advanced, there seems little hope. That’s why he had disobeyed his orders in the first place: to figure out a way to stop them. But now he’s beached - just what Konstantin wanted.

Teenage supersoldier Ryn Whittaker started an uprising. For three years Ryn was stationed at The Battle Ground Rift site - one of the 14 mysterious and unpredictable tears in the fabric of the universe that serve as doorways to alternate Earths - and then she met Ezra Massad. Falling in love and becoming a rebel Citadel wasn't part of Ryn's life plan, but with Ezra there asking all the right questions, they began to decode what's really going on with the Allied Rift Coalition, and what they discovered was enough to start a civil war.

Abyss Deep is a foreboding ocean planet torn by extremes: boiling storm world on one side, unbroken glacier on the other. Humans established a research colony there to study the planet's giant sea serpents - but the colony has gone ominously silent. When Carlyle's team arrives, they discover a vessel belonging to a warlike alien species hovering above the atmosphere. But below the ice lurks a mystery so chilling it will make even Elliot Carlyle's blood run cold.

The Saurians, a highly evolved reptilian species which escaped extinction 65 million years ago, have an agenda: to achieve behind-the-scenes dominance over Earth. Operating from hidden bases, they use psychosocial techniques to plant conspiracy theories and instill fear within the human population. Too weak in numbers to militarily conquer a world they believe to be their own, they seek to renew Nazi strongman ideologies and surrogates to gain absolute control.

The comet, Cain, came from beyond our solar system, its debris containing elements unknown. Now, in the isolated region of Fairbanks, Alaska, the skies shift and stretch as an interstellar dust cloud seeds the atmosphere. When a plane shudders its way through pulpy, swirling, bruise-shaped clouds, lit with sudden cracks of lightning, the sky opens and the aircraft vanishes…but only for a minute. When the flight lands, everyone on board and in the community will be changed forever.

Colonel Butler has paid his dues and just wants to enjoy his retirement on a remote planet. But the galaxy has had other plans. He has been roped into searching for a politician’s missing son and an industry magnate’s missing daughter. He has been kidnapped, violated numerous laws, and caused the destruction of colonial facilities. He’s famous—or infamous, depending on who you ask—praised and reviled in equal measure across the galaxy for his exploits.

Centuries in the future, the Galactic Authority reigns over millions of advanced civilizations throughout the cosmos. From deep within the Galactic Core, the Authority’s principal Mind has won the allegiance of myriad nations, offering security, connection, and access to a network of interstellar Gates in exchange for compliance.