Two realities.
One catastrophic mistake.
And a system that just started to wake up.

"A rip-roaring read!" - SPR Editorial Review ?????

He thought it was just cargo.
He didn't know it could destroy the universe.

Jon Simmons is a broke interstellar trucker flying solo on a shady delivery job. His cargo? Sealed. His instructions? Don't ask.

But what's inside isn't just black-market tech -- it's the blueprint for a planet-killer.

Worse still... he delivers it to the wrong people.

Now entire star systems are collapsing. And to stop the chain reaction, Jon must do the unthinkable: team up with his future self.

Because time is breaking.
And so is reality.

"A most excellent space adventure" ?????

"Good escapist fun" ?????

"Fans of this genre are truly going to love this book!" ?????

Meanwhile, in Base Reality...

Teenager Kalen RIX_647 has pushed his rented simulation beyond safe limits. Inside, a rogue Simulant -- Arthur-882 -- is rewriting his own code and fracturing the laws of his digital universe.

If the system crashes, millions die.

And if Kalen gets caught... he might vanish for good.

"A page turning delight" ?????

"Highly recommended!" ?????

Previously Number One in the Amazon Bestseller Charts in Numerous Categories!

Ideal for hard sci-fi, time travel, space opera, cyberpunk, space exploration, humorous sci-fi, and science fiction and fantasy lovers.

Perfect for fans of The Bobiverse, Project Hail Mary, The Murderbot Diaries, The Hitchhiker's Guide to the Galaxy, Dr Who, Terry Pratchett, and Red Dwarf -- Zeno's Last Grain is a mind-bending sci-fi epic blending simulation theory, dark humour, and time-loop chaos into a fast-paced galactic thrill ride.

Join the mayhem -- buy your copy NOW before the universe crashes.

Note: This is the Second Edition of Zeno's Last Grain, originally published as part of The Galaxy Marshals series. This updated edition features new "base reality" chapters, a redesigned cover, and a new series title as part of a rebrand. The core story remains largely the same as the original edition, and some existing reviews may still refer to The Galaxy Marshals.

• We started tracking this book on July 29, 2021.
• This book was $4.99 when we started tracking it.
• The price of this book has changed 19 times in the past 1,530 days.
• The current price of this book is FREE last checked one hour ago.
• The lowest price to date was FREE last reached on October 3, 2025.
• This book has been FREE 2 times since we started tracking it.
• The highest price to date was $4.99 last reached on March 20, 2022.
• This book has been $4.99 3 times since we started tracking it.
• This book is currently at its lowest price since we started tracking it.

• Text-to-Speech: Disabled
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• Print Length: 304 Pages
• File Size: 34 KB