Jon Mills Books in Order
Explore Jon Mills books in order, with quick summaries, series guides, background, and where-to-start tips for Debt Collector, Undisclosed, and more.
Last updated: July 9, 2026
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Publication Order
21 books
Undisclosed
by Jon Mills
2012
In secretive Los Alamos, teen Travis Marshall is thrown into danger when his molecular biologist father vanishes. Joined by a strange group of outsiders, he stumbles into a hidden war tied to human origins and long-buried secrets.
The Promise
by Jon Mills
2013
Hailey Welland is trying to save her late parents' treatment center when help arrives with a catch. To keep the doors open, she must guide a troubled Hollywood actor through rehab, and the arrangement quickly gets personal.
Clandestine / One
by Jon Mills
2014
After escaping near death in Peru, Travis tries to save Jayde and expose the shadowy agency called ONE. Mysterious packages from an unknown ally offer hope, but every answer raises a new question about loyalty.
Retribution / Decoded
by Jon Mills
2014
One year after the disaster in New Mexico, Travis Marshall is changed, haunted, and still searching for his brother. A trail involving James Forrestal and a legendary artifact pulls him into another fight over humanity's fate.
The Debt Collector
by Jon Mills
2015
Fresh out of prison, former mob hitman Jack Winchester wants a clean life. His old boss forces him into one last job in a Maine town, where a missing target, a troubled woman, and her son complicate everything.
True Connection
by Jon Mills
2015
When an NYU student misses his ride home for Thanksgiving, a chance encounter changes the course of two lives. The story follows love, loss, and second chances across more than two decades.
Vengeance
by Jon Mills
2015
Back in New York, Jack finds his friend murdered and his sister taken by the Sicilian Mafia. Trying to protect his new family only pushes him deeper into a personal war he cannot walk away from.
Angel of Death
by Jon Mills
2016
A wealthy businessman hires Jack to rescue his daughter from a dangerous cult in Peru. The job carries him from Florida to the Amazon, where federal pressure and fanatical followers close in fast.
Hard to Kill
by Jon Mills
2016
Wanted by the FBI and hunted by a mafia assassin, Jack drifts into New Orleans to reconnect with an old flame. A storm, a drug lord, and a desperate family crisis make leaving town impossible.
Prey
by Jon Mills
2016
When police write off a kidnapped twelve-year-old as a runaway, Jack takes the mother's plea seriously. Another missing boy points to a larger, darker pattern, and Jack races to stop it before more children disappear.
Reborn
by Jon Mills
2016
Trying to disappear on Skid Row, Jack instead gets pulled into a case involving a trafficked brother and sister from Hong Kong. Saving them means taking on the Triads and accepting that his old skills still define him.
Hard Time
by Jon Mills
2017
A mysterious job takes Jack to Honduras, where he is framed for murder and thrown into a savage prison. To survive, he must uncover who betrayed him before the warden's deadly games finish the job.
Her Last Breath
by Jon Mills
2017
Armed with clues from a murdered journalist's recorder, Jack heads to a strange West Virginia town to find a missing young woman. The place runs on fear, silence, and rules that suggest something rotten is hiding in plain sight.
Narc
by Jon Mills
2017
Jack agrees to help an old enemy investigate a brutal case in the Florida Everglades. The search pulls him from swamp country to Miami and toward a confrontation with the one fear he cannot easily outrun.
Trail of the Zodiac
by Jon Mills
2017
New murders and taunting ciphers convince San Francisco police the Zodiac may be back. When an old flame contacts Jack after her son's death, the unsolved legend becomes personal and turns into a deadly cat-and-mouse hunt.
Fight Game
by Jon Mills
2018
After tragedy, Jack retires with Dana to a quiet Colorado town, hoping the violence is behind him. A devastating mystery sends him south and into the brutal underground fighting world he wanted to leave for good.
I'm Still Here
by Jon Mills
2018
Homicide detective Kara Walker returns to her hometown on the Olympic Peninsula after her mother's death and finds new clues about her brother's old disappearance. Reopening the case means challenging the past, the trial, and her own fragile grip.
Lost Girls: The Maine Murders
by Jon Mills
2018
After leaving the FBI, Benjamin Forrester is pulled into a new series of grisly killings in Eden Falls, Maine. Working with rookie detective Dakota Woods, he must face old trauma before the killer strikes again.
Cry Wolf
by Jon Mills
2019
Following a lead on Dana Grant's disappearance, Jack Winchester stops in a frightened Arkansas town under siege by a white supremacist group. One small act of kindness puts him in the crosshairs and drags him into another violent fight.
Oblivion
by Jon Mills
2019
Days after *Cry Wolf*, a dying man's clue sends Jack to a notorious town in upstate New York in search of answers about Dana Grant. The trail leads into a brutal place where old enemies are still playing games.
Murder Games: The New York Murders
by Jon Mills
2020
A taunting video message drags profiler Ben Forrester back to New York and into a killer's timed game. With Detective Dakota Woods beside him, he has to solve the clues before the next victim dies.
Where should I start?
If you want a vigilante thriller series: The Debt Collector → Vengeance → Reborn
If you prefer FBI profiler suspense: Lost Girls: The Maine Murders → Murder Games: The New York Murders
If you want a standalone mystery: I'm Still Here
If you want YA conspiracy thriller energy: Undisclosed → Retribution / Decoded → Clandestine / One
If you want relationship drama instead: The Promise → True Connection
Author bio
Jon Mills was born in London, is originally from England, and moved to Canada in 1997. He writes mostly thrillers, but his catalog shows he does not mind changing lanes when a story calls for it.
That mix of speed and curiosity runs through almost everything he publishes.
His first novel under this name was Undisclosed in 2012, a YA conspiracy thriller set in Los Alamos, New Mexico. It blends secret groups, missing people, strange science, and big questions about human origins. The follow-ups, Retribution / Decoded and Clandestine / One, turned that idea into a full trilogy and showed early on that Mills liked high stakes and hidden systems.
A few years later he moved hard into crime fiction with The Debt Collector. That series introduces Jack Winchester, a former mob hitman who keeps getting pulled toward people in trouble even while he is trying to outrun his own past. Across books like Vengeance, Hard Time, Trail of the Zodiac, and Oblivion, Mills sends Jack from small-town Maine to New York, Los Angeles, Peru, West Virginia, California, and beyond. The pattern is easy to spot. Fast pacing, dangerous jobs, and a lead character who is rough around the edges but still easy to root for.
He clearly likes stories where the past does not stay buried.
That shows up in his standalones too. I'm Still Here follows homicide detective Kara Walker as she returns home and reopens the wound of her brother's disappearance. The Promise shifts in a different direction, leaning into relationship drama as an addiction counselor tries to save her family's treatment center while helping a troubled actor. Even the short True Connection stretches one missed ride home into a story about love, loss, and second chances.
Then there is Lost Girls: The Maine Murders and Murder Games: The New York Murders, which bring in FBI profiler Ben Forrester and detective Dakota Woods. Those books sit closer to police procedural territory, but they still carry the same Mills habits, missing people, old damage, tight deadlines, and the feeling that danger is always one wrong turn away.
What ties these books together is his interest in ordinary-seeming places that hide real menace. Small towns, highways, prison blocks, and city streets all become pressure cookers once a disappearance or a murder cracks them open.
Mills is also notably prolific. On his author bio, he says he has published more than ninety books under different pen names, each aimed at different genres. Even if readers know him mainly for Jack Winchester or the Undisclosed books, that detail helps explain the range. He writes like someone comfortable moving between YA conspiracy fiction, crime thrillers, relationship drama, and shorter emotional stories without making a big fuss about the switch.
Now based in Canada, he keeps a fairly simple public profile. He describes himself as married, a father of two girls, and a fan of caffeine, action movies, thrillers, and stories with heart. That small list feels fitting. His books tend to move fast, but they are usually anchored by grief, loyalty, guilt, or the stubborn hope that damaged people can still do one decent thing.
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