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The Gravity Runners: The Halcyon Inheritance
Paperback
Series: The Gravity Runners, Book 2
Publisher: Independently Published
Published: Apr 22 2026
Pages: 160
Weight: 0.49
Height: 0.34 Width: 6.00 Depth: 9.00
Language: English
The sequel to The Quantum Drift - bigger, stranger, and more dangerous than anything Kalen Thorn was prepared for.
Six weeks ago, Kalen changed the galaxy. He broadcast his mother's Veridite synthesis research to every world in the known universe, broke Syndex's hundred-and-thirty-year monopoly, and got out alive. He thought the hard part was over.
He was wrong.
The second coordinate on Sera Thorn's map leads to a region of deep frontier space that Syndex classified as empty forty years ago - and then quietly made sure stayed that way. What's actually there is a living world called Aethon, home to two million people who have spent four decades slowly realizing their astronomical charts don't match their sky. They were moved. Their entire star system, repositioned without their knowledge or consent. Sera Thorn found them and promised to come back with the truth.
She never came back. That's on Kalen now.
But Aethon is only the beginning. Buried in the stellar data is something older - a three-hundred-year-old signal encoded on frequencies that only exist in a theoretical framework published thirty years ago. Someone built the mechanism that moved this world using mathematics that hadn't been written yet. Someone has been leaving coordinates for humanity to find, one by one, in exactly the order they'd be able to understand them.
The Unified Field wasn't discovered. It was placed where humanity would find it.
And Director Caul Maren - the man who ordered Sera Thorn's death - has been following the same map. He's been to the third coordinate. He knows what's there. And he's coming to Aethon to find out if Kalen has figured out what he has.
The Halcyon Inheritance is Book Two of The Gravity Runners - a YA science fiction series built on real physics, driven by characters who earn every revelation, and engineered for readers who want their space operas to mean something.
The science is real. Star systems can be moved. The mathematics exists. Someone figured it out three hundred years before humanity did - and they left instructions. The question is what they left them for.
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