About the Book
A mother in mourning on a mission of vengeance. A guilt-ridden scientist desperate for redemption. A cosmic rift that can rewrite their lives—or erase their world.
When a mysterious near-Earth rift appears in space, the world calls it a harmless anomaly—until its matter-erasing flares begin wiping cities off the map. For Calida, the devastation is personal: a flare killed her husband and daughter. Certain the rift is being manipulated by Dio, the ruthless trillionaire who controls Earth’s most powerful corporate empire, Calida sets out to expose the truth—no matter the cost.
On the Moon, biomedical scientist Sol pursues a different truth. Haunted by the death of his twin sister, he believes the rift’s time-bending energy may hold the key to curing disease. But when Dio brings him to her lunar base, Sol discovers the rift is far more than a cosmic wound. It’s alive. And it’s changing him.
As Calida closes in on Dio’s secrets and Sol uncovers the terrifying consequences of the rift’s power, their fates collide across a decade of fractured timelines. With the rift’s secrets laid bare, the past is theirs to rewrite, but only by wagering their future—and the future of the world itself.
Genre and Themes
Genre: Adult Science Fiction
Setting: Near future; Earth, Moon, and beyond
Style: Character-driven, high-concept speculative fiction
Tone: Emotional, philosophical, and suspenseful
We Are Stardust is a standalone near-future science fiction novel that blends grounded science with speculative ideas about the non-linear nature of time.
Written to welcome both longtime sci-fi readers and newcomers to the genre, the story focuses as much on deeply human themes as it does on the science.
Core Themes
-Love and loss and how far we will go to reclaim what time has taken away
-The cost of rewriting the past
-Trauma, identity, and the moments that define us
-Hope in the face of irreversible loss
Perfect For Readers Who Enjoy
-Emotionally powerful speculative fiction
-Big ideas grounded in human stories
-Science fiction that asks philosophical questions
Fans of Emily St. John Mandel will appreciate the emotional resonance, while readers who enjoy the mind-bending twists of Blake Crouch, the philosophical depth of Ted Chiang, and the cinematic, science-grounded storytelling of Andy Weir will find familiar elements to love.
If you’re drawn to stories where science meets the soul, We Are Stardust lives in that space—where time bends, choices echo, and every moment matters.
About the Author
S.T. Seitz is a science fiction author, freelance writer, and editor who crafts stories about the future through the lens of what it means to be human.
With a background in biology and a lifelong fascination with living systems—human and otherwise—she creates near-future and speculative science fiction that blends big ideas with emotional depth. Her work explores themes of grief, power, and connection, grounding cosmic concepts in deeply personal stakes.
She fell in love with storytelling in the second grade and wrote her first novel in high school, confirming early on that she prefers imagined worlds to the real one—though she remains deeply invested in both. Her novels in progress have been shortlisted for the Launch Pad Prose Competition and the Andromeda Award.
She lives in the foothills of Colorado with her husband, their wildling daughter, and a small menagerie of animals. When she isn’t writing, she’s outside marveling at the planet, worrying about the planet, or observing its creatures with gentle scientific curiosity.
The idea for We Are Stardust was born from exploring questions about grief. Specifically, what it can do to us when it becomes powerful enough to reshape reality. And when the desire to fix the past becomes stronger than our ability to accept it.
Where to Buy
We Are Stardust is available in paperback and Kindle ebook. You can buy both on Amazon (Kindle Unlimited members can download it at no extra cost). Or you can purchase the paperback directly from IngramSpark.
Want More?
Want to know what happens before the rift sent Calida and Sol on a collision course across space and time?
Join the S.T. Seitz Reader Club newsletter to get exclusive access to free short stories, novellas, and sneak peeks, including Before Now: A We Are Stardust Mini Prequel.
Before Now captures the first appearance of the anomaly and the choices that begin to draw Calida, Sol, and Dio onto a shared and dangerous path. It is a short read, only about 30 minutes, and a great way to enter the world of We Are Stardust.
Sign up to get your free download link today!
