In the wide-open country of Montana, the land keeps its secrets—and U.S. Marshal Danny Coogan has a habit of digging them up.
From the moment a trusted friend leaves him for dead in the frozen backcountry, Coogan’s life becomes a relentless pursuit of truth across the rugged West. What begins as small-town violence quickly spirals into something far darker: cattle rustling operations tied to drugs and murder, shadowy societies stirring unrest on tribal land, missing persons cases that refuse to stay buried, and fugitives with nothing left to lose.
A decorated Afghanistan veteran turned lawman, Coogan walks the thin line between federal authority and frontier justice. But every case pulls him deeper into a world where loyalty is fragile, corruption runs quiet and deep, and the next shot could come from someone he knows.
With a growing family at home and enemies closing in, Danny must rely on instinct, grit, and a dry streak of wilderness humor just to stay alive.
Perfect for fans of Craig Johnson, C.J. Box, and William Kent Krueger, the Frontier Marshal series delivers gripping Western crime, layered mystery, and high-stakes action under big Montana skies.
Saddle up—Darwin’s quiet days are over.
$3.99 to $7.99 on Kindle.
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Disclaimer: The price of Frontier Series was accurate when this post was published on March 04th, 2026. However, Amazon can and does change Kindle book prices frequently and without notice. Always look closely at the price of an ebook on Amazon before clicking that yellow button. If you purchased a Kindle book by accident, it's simple to return, just follow the return instructions here.