Ace imprint: 1302 books

Kris Longknife is back in the good graces of the brass—and to demonstrate that, they've promoted her to Admiral.  Now her mission is to find the home base of the space pirates who are plaguing the fringes of the galaxy.   But no mission is ever simple when your name is Longknife. And this time...

Following a successful coup against the tyrannical Syndicate, the leaders of the rebel Midway Star System work to forge a government free enough to please its citizens yet strong enough to secure power. But in a world where former rulers have become new foes, an alien threat to humanity may turn old...

Kris Longknife has been assigned to The Wasp, the best warship beyond the Rim of Human Space. But while hunting for pirates, Kris stumbles upon something. It’s a plan to kill one of the members of the aristocratic Peterwald family—and the would-be killers are setting her up as the assassin.

Susan Calvin is about to enter her second year as a psych resident at the Manhattan Hasbro teaching hospital when a violent crime strikes very close to home.   When she was young, Susan lost her mother in a terrible car wreck that also badly injured her father. She now believes the accident was orchestrated...

The acclaimed classic novel and fan favorite—the far-future story of one man's quest to discover the truth behind a galactic war hero.

BEAUTY AND THE BATTLEFIELD Her Imperial Highness the Grand Duchess Victoria Maria Teresa Inez Smythe-Peterwald, daughter of wealth and power, was raised to do little except be attractive and marry well. Then everything changed—her brother, her father’s favorite and the heir apparent, was...

First in a brand new thought-provoking science fiction series. The lines. No ship can traverse the void without them. Only linesmen can work with them. But only Ean Lambert hears their song. And everyone thinks he’s crazy… Most slum kids never go far, certainly not becoming a level-ten...

A young fleet officer and a Marine stand together to defend their colony in the continuation of the powerful and action-packed Genesis Fleet saga from New York Times bestselling author Jack Campbell. In the three years since former fleet officer Rob Geary and former Marine Mele Darcy led improvised...

It's the year 2030. The oceans have risen rapidly, and soon the entire planet will be submerged. But the discovery of another life-sustaining planet light years away gives those who remain alive hope. Only a few will be able to make the journey-Holle Groundwater is one of the candidates. If she makes the cut, she will live. If not, she will be left to face a watery death...

The competing teams of astronauts sent to explore the asteroid Keanu discovered it was, in fact, a giant spacecraft with an alien crew carrying a plea for help. A brave new frontier beckons. But it will come at a price. Without warning, the aliens transport small groups of humans to the vast interior...

From the New York Times bestselling author of the Legion of the Damned® novels and the Mutant Files series comes the second novel in a postapocalyptic military science fiction series about America struggling to overcome a natural disaster but starting a second civil war… As people fight...

Earth, A.D. 2519. Less than a year has passed since the clone military of the Enlisted Man’s Empire toppled the government of the Unified Authority. Now the clones rule Earth, but a new enemy has emerged—and set off civil war… Formerly trained to fight for the U.A., clone Marine Wayson...

Carmen Dula and her husband spent six years travelling to the distant home of the powerful race known as "The Others," in the hopes of forging a truce. But by the time Carmen returns to Earth, fifty years have passed-and the Earthlings have built a flotilla of warships to defend Earth against...

At the close of the twenty-fourth century, a series of revolutions has caused the galaxy to descend into chaos. With the Galactic Union Army stretched thin, mercenary units have arisen for those who have the need—and the means—to hire them…   Kay, the alien member of the Cutter Force Initiative,...