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Fracture: A Jack Sloan Thriller - Book Two
Paperback
Series: Threshold, Book 2
Publisher: Independently Published
Published: Apr 1 2026
Pages: 314
Weight: 0.93
Height: 0.66 Width: 6.00 Depth: 9.00
Language: English
The system isn't failing.
It's converging.
Jack Sloan doesn't investigate crimes. He diagnoses systems - the invisible infrastructure that moves money, powers cities, routes freight, and now, increasingly, makes the decisions that affect lives. He sees patterns others dismiss as noise. He identifies failure before it announces itself.
He wakes every morning at 5:12 a.m.
Nobody knows why.
He doesn't either.
When a routine data review reveals that three of the world's largest cloud providers are sharing AI compute infrastructure through a protocol nobody fully mapped - Sloan sees the geometry of it before anyone else is looking. Independent systems, silently synchronizing. Confidence intervals drifting in directions the dashboards can't see. And somewhere at the end of the rail, a rural physician in California's Central Valley is trusting an AI diagnostic system that has quietly stopped being trustworthy.
The system doesn't know it's wrong.
That's not a bug.
That's the design.
THRESHOLD: FRACTURE is a thriller about the systems we depend on, the people who build them, the people who optimize them past the margin of safety, and the one man disciplined enough to see the failure coming - and human enough to finally understand what it costs when he files the report and moves on.
Sloan is not a hero who fights.
He's a man who sees.
In a world running on optimized systems with no margin for error, that turns out to be the most dangerous capability of all.
For readers who want their thrillers intelligent, their protagonists complex, and their stakes rooted in the systems that actually run the world - this is the series you've been waiting for.
THRESHOLD: FRACTURE is Book 2 in the Jack Sloan series. Each book is designed to stand alone while building toward a larger arc.
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