The Sam Colton Mysteries Books in Order
Part ofRobert M Kerns Books in OrderSee The Sam Colton Mysteries in order by Robert M Kerns, with quick case summaries, series background, and where to start with these noir PI stories.
Last updated: June 30, 2026
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The Sam Colton Mysteries books in publication order
2 books
Mistaken Identity
by Robert M Kerns
2022
Former detective Sam Colton is roughed up over a case he knows nothing about, then pulled into a murdered PI's last investigation. A coded message and a storage unit full of secrets send him hunting answers the hard way.
The Key to Happiness
by Robert M Kerns
2022
An unmarked key turns up in Sam Colton's pocket after a stranger brushes past him. Following it leads him to an old friend, fresh trouble, and a case that turns out to be much bigger than it first looks.
The Sam Colton Mysteries books in chronological order
Series background & context
The Sam Colton Mysteries are the shortest works in Kerns's main lineup, but they carry a very different flavor from the big fantasy and science fiction series. These stories live in PI territory: cheap offices, bad mornings, people with too much to hide, and a lead who has already paid for a few wrong turns. Sam Colton is a former detective turned private investigator, and he is the kind of man trouble seems to recognize on sight.
He is not polished. That is the point.
Sam scrapes by on instinct, stubbornness, and just enough professional pride to keep him from walking away when he should. He sleeps on his office couch, gets pulled into cases that arrive sideways, and tends to keep digging once other people would sensibly stop. Kerns writes him with a hard-boiled edge, but also with some warmth. Sam may sound dry and tired, yet he still has a conscience, and that conscience is usually what gets him hit.
Mistaken Identity is the right place to start. It throws Sam into a case he was never supposed to touch after a pair of goons rough him up over the wrong name. From there he gets pulled into the last breaths of another PI, a coded message, and a storage unit full of secrets. It is quick, bruising, and very clear about the kind of world Sam lives in. People lie, violence arrives early, and answers come with a bill.
He keeps taking the case.
The Key to Happiness keeps the format lean while widening Sam's personal world a little. An unmarked key turns up in his pocket after a chance encounter, and that small mystery leads him toward an old friend, fresh danger, and another problem that is much larger than it first looks. Because the stories are short, the pace matters. Kerns does not spend long on setup. He likes the moment when a simple mistake stops being simple, and both stories get there quickly.
These are not sprawling detective novels. They are fast, noir-leaning stories with a modern voice and enough wit to keep the mood from going flat. If you like private investigators who are smart, worn down, and still just stubborn enough to do the right thing, Sam Colton is easy to settle into. The books read like side streets in Kerns's catalog, smaller, darker, and worth the detour.
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