Every month, Baen Books sends us a selection of their newest releases and we share them with you. They’ve been bringing readers science fiction and fantasy for decades. Here are the previews for Baen Books December releases.
Fenrir
Written by: Eric Flint & Ryk E Spoor
Cover Artist: Dominic Harman
Format: Hardcover
RELEASES June 3, 2025
When astronomer Stephanie Bronson uncovers a massive alien vessel named Fenrir racing toward the Sun, she must lead a desperate mission to rescue its crew before a catastrophic failure dooms them both to fiery destruction.
It was just a dot of light . . .
. . . a dot of light that appeared out of nowhere. Stephanie Bronson thought she might have found a distant supernova. Instead, what she’d found was something more than a thousand miles across, moving towards the Sun at almost a third the speed of light from the constellation of Lupus, the Wolf. Even more frightening, the object—called Fenrir, after the Norse Wolf of the World’s End—was slowing down. It was not a comet or even a rogue planet.
It was an alien vessel.
And despite the increasingly detailed and insistent messages of greeting from Earth, it showed no sign of responding. As the world braced itself for the arrival of the immense, frighteningly silent alien visitor, Stephanie held hope that they still might communicate with Fenrir—until something happened that no one had imagined: Fenrir flared and its drive died, leaving the huge ship careening out of control to a fiery death inside the orbit of Venus.
There was—just possibly—a chance for Earth to act—to rescue the now-shipwrecked “Fens.” But even Stephanie—or those trying to stop her and the rescue ship Carpathia—could not imagine that not merely the fate of the aliens, but that of Earth itself, would be decided by Fenrir.
Not That Kind of Good Guy
Written by: John Ringo
Cover Artist: Sam R. Kennedy
Format: Hardcover
RELEASES June 3, 2025
ALL IT TAKES
It’s there for anyone to see: There are dark forces at work on the world, working to destroy civilization. All it takes for evil to triumph is for good men to stand by and do nothing. We need a good guy.
NOT ALL HEROES WEAR CAPES—BUT SOME DO
For a generation, individuals have arisen with super powers, able to change the course of history, or at least save a few lives. But these people have free will—and not all choose to work for the forces of good. We want someone with an unblotted escutcheon, a Galahad for the 21st Century, someone pure of ethics and morality.
NOT THAT KIND OF GOOD GUY
What we get is Michael: the product of a broken childhood, raised in the foster system of one of America’s most dangerous inner cities, his wisdom comes from drug addicts and whores. Maybe he’s not the hero we asked for, but he’s the hero we need. And he’s about to hit puberty.
Rise From Ruin
Written by: Melissa Olthoff
Cover Artist: Pierluigi Abbondanza
Format: Paperback
RELEASES June 3, 2025
When a prank bonds Harper Tavros to a fierce griffin instead of the dragon she always dreamed of, she must battle her doubts and rise to the front lines, forging an unbreakable alliance to save her country from impending doom.
Together we fly, divided we fall.
All Harper Tavros ever wanted was to be a dragon rider.
But after a prank goes wrong, she ends up soul bonded to a griffin. Now, she’ll have to learn an entirely new skillset before she ends up on the front lines of a war her country is slowly losing.
If she’s going to make a difference, she’ll need to rise up from the ruin of her dreams and embrace a new path. One that includes her accidental bondmate, an utterly ridiculous, insanely brave griffin. But in order to form a strong enough bond to defend their country, they’ll need to keep the pressures of war, loss, and doubt from tearing them apart. Because the only way Harper and her griffin will survive is together.

All Roads Lead to Rome
Edited by: Hank Davis & David Afsharirad
Cover Artist:
Format: Paperback
RELEASES June 3, 2025
Imperium Sine Fine
Step back in time and traverse the stars with classic stories that reimagine the grandeur of the Roman Empire—with a science fiction twist.
From the vastness of interstellar conquests to the intricate politics of alien worlds, these tales blend history and imagination, exploring what might have been if Rome had extended its reach beyond the solar system.
Join us as we uncover the stories that blend the glory of the past with the possibilities of the future—where the empire never truly fell, but soared among the stars.
The Icarus Plot
Written by: Timothy Zahn
Cover Artist: Dave Seeley
Format: Paperback
RELEASES June 3, 2025
NEW SCIENCE FICTION SERIES FROM THE CREATOR OF THE COBRA SERIES AND STAR WARS’ ADMIRAL THRAWN
There wasn’t much money to be made as a Trailblazer, searching out new worlds for possible development. Still, it was safer than the bounty hunter career that had cost Gregory Roarke his left arm six years ago. And thanks to his Kadolian partner Selene’s ultrasensitive sense of smell, they occasionally discovered a medically promising seed or spore they could sell under the table. It was a quiet life, uneventful and mostly legal.
Until Roarke was approached by two men with a proposal: track down a mysterious woman named Tera and, through her, locate a secret project called Icarus.
The challenge was intriguing. The unlimited budget was tempting. But Roarke had a more personal reason to accept the job.
The chance for long-delayed payback.
And if Lorenzo can accomplish that—well then, the Crossroads awaits the sword of Exodus.
The Icarus Changeling
Written by: Timothy Zahn
Cover Artist: Dave Seeley
Format: Mass Market Paperback
RELEASES May 27, 2025
Gregory Roarke — agent for the ultra-secret Icarus Group – has received a new assignment: locate a teleportation portal on a backwater colony world. But what should be a an easy assignment leads to a string of murders, and a race against an alien enemy.
Gregory Roarke—former bounty hunter, former Trailblazer, current agent for the ultra-secret Icarus Group—has received a new assignment: locate a suspected but as-yet undiscovered teleportation portal on the backwater colony world of Alainn.
The rival Patth are also searching for the device, and have considerably more resources at their disposal. Fortunately, Roarke has Selene and her incredibly sensitive Kadolian sense of smell. On paper, it should be a straightforward enough job.
But that was before there was a murder in the small town of Bilswift . . . and another one . . . and the discovery that the Patth are already on the scene and have narrowed the search to a heavily forested area in the hills and mountains east of town.
Most disturbing of all is the discovery that one of Selene’s people, a Kadolian teenaged boy named Tirano, is working at one of Bilswift’s fish markets. A boy who may have lost his parents before his proper socialization was completed. A boy who may be connected to both the murders and the Patth.
A boy who may be the potentially dangerous wild card that the Kadolians call changelings.
Hyde & Seek
Written by: Simon R. Green
Cover Artist: Todd Lockwood
Format: Mass Market Paperback
RELEASES May 27, 2025
With the monsters of old wiped out, Daniel and Tina of Hyde, Inc., face a greater foe— from beyond the stars.
Whatever happened to all the old monsters?
The vampires, the werewolves, the ghouls . . . Daniel and Tina Hyde wiped them out, to make the world a safer place. But nature abhors a vacuum, supernature even more . . . Something’s got to fill the gap left by all those monster clans. The question now is, what happened to all the old aliens? The Martians, the Bug-Eyed Monsters, the Reptiloids and the Greys?
They’re coming out of the shadows with a vengeance, and Daniel and Tina Hyde are about to discover there are much worse things than monsters. Fortunately, the Hydes love a good fight.
Daniel and Tina are in for the fight of their lives, with the whole world at stake.
Publisher – Baen Books

Founded by Jim Baen, Baen Books has been bringing readers pulse-pounding, thought-provoking adventures straight from the heart of science fiction and fantasy for decades. We publish books in hardcover, paperback, and electronic form, and are one of the few traditional publishers that maintains its own ebooks webstore (with at least four new titles added every month). We are also perhaps the only book publisher to make our electronic advanced readers copies (eARCs) available for sale to devoted fans before a book’s official release date. In addition, we also sell ebooks from other publishers. We sell more than 2000 books from over 500 authors published by 24 different companies. Good reading to all!
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