DW Ulsterman Books in Order
Explore D.W. Ulsterman's books in order, with concise summaries, series background, and practical guidance on where to start reading.
Last updated: July 15, 2026
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DW Ulsterman books in publication order
25 books
Dominatus: Liberty. Freedom. Family.
by DW Ulsterman
2013
After the United States falls, a small community in Alaska's interior clings to personal liberty under the rule of the New United Nations. Mac Walker and the survivors prepare to fight for their freedom.
Mac Walker's Benghazi
by DW Ulsterman
2013
Days before the Benghazi attack, Mac Walker and his hired team enter a chaotic Libyan city on an assignment with unclear motives. As danger grows, they realize the people behind the mission may want them silenced.
Mac Walker's Betrayal
by DW Ulsterman
2013
In the aftermath of Benghazi, former Navy SEAL Mac Walker faces a betrayal that reaches beyond one failed mission. As hidden agendas close in, he must decide who is worth trusting and what truth is worth risking.
Mac Walker's Regret
by DW Ulsterman
2013
This Mac Walker story returns to the former Navy SEAL's world of missions, consequences, and difficult loyalties. Mac's hard-earned instincts are tested when the past refuses to stay behind him.
The Second Oldest Profession
by DW Ulsterman
2013
Young Washington newcomer Colin O'Shea tries to protect a woman caught in the jealous rage of a powerful congressman. Lust, ambition, and political corruption turn the capital into a dangerous place to seek justice.
Tumultus
by DW Ulsterman
2013
Two years after the attack on Dominatus, Mac Walker and fellow survivors cross dangerous former Canadian territory seeking a priest and a weapon. Their mission may offer hope against the New United Nations regime.
Bonita
by DW Ulsterman
2014
Former Washington insider Frank Bennington works as a private investigator in a city built on secrets and ambition. His case draws him deeper into the corrupt political world he knows too well.
Illuminati
by DW Ulsterman
2014
Frank Bennington and the covert T3 Group confront a powerful otherworldly enemy moving to tighten its grip on humanity. Political intrigue gives way to a supernatural battle between deception, darkness, and resistance.
Mac Walker's 40,000 Feet
by DW Ulsterman
2014
When terrorists hijack an airliner, former Navy SEAL Mac Walker teams with mysterious Vatican operative Stasia Wellington. Saving the passengers is only the beginning, as the hijacking conceals a far deadlier plot.
Take Two and Call Me in The Morgue
by DW Ulsterman
2014
Private investigator Frank Bennington races to save the life of a friend. His search exposes powerful corporate and government interests connected to a cancer cure that may be more dangerous than the disease.
The Irish Cowboy
by DW Ulsterman
2014
Set against Montana country, this family drama follows people wrestling with regret, loss, and the chance to make amends. Love and old wounds shape a story about finding hope when life seems beyond repair.
Mac Walker's American Jihad
by DW Ulsterman
2015
Former Navy SEAL Mac Walker has seventy-two hours to stop terror cells planning an attack on vulnerable Americans. Racing against time, he is pushed to the physical and mental limits of his skills.
Race Wars: Omnibus One: Seasons 1-5
by DW Ulsterman
2015
In a divided future America, an authoritarian system turns cities into prison camps and rural regions into war zones. A diverse group of survivors begins to resist the forces using fear and division to control them.
Dark Waters
by DW Ulsterman
2016
After college, aspiring journalist Adele Plank returns to the San Juan Islands and finds a young woman's murder shaking the community. Doubts about the new sheriff and an unexpected clue leave Adele unsure whom she can trust.
Race Wars: Omnibus Two: Seasons 6-10
by DW Ulsterman
2016
The second omnibus continues a dystopian America fractured by political manipulation, violence, and fear. As separate survivors' paths converge, they must choose whether to unite against the forces profiting from the country's collapse.
The Writer
by DW Ulsterman
2016
College journalist Adele Plank receives a rare interview with reclusive novelist Decklan Stone on his private island. Her assignment soon becomes a deadly investigation into a tragedy that someone has worked very hard to hide.
Murder on Matia
by DW Ulsterman
2017
Winter brings death and unanswered questions to the San Juan Islands. Reporter Adele Plank travels by land and sea to piece together a dangerous puzzle, while hidden enemies decide whether she should survive it.
Rosario's Revenge
by DW Ulsterman
2017
When a man is shot and Adele Plank's friend is accused of murder, the island reporter follows a trail toward a Russian crime lord. To clear the name of someone she cares about, she must stay ahead of killers.
Mr. Diaz's Revenge
by DW Ulsterman
2018
Amos Diaz is a teacher whose unhappy job and failed marriage have left him near collapse. When his path crosses that of a father seeking justice, both men are forced into a reckoning with a broken system.
Savage
by DW Ulsterman
2018
Morning discovers the journal of her great-grandfather, Cy, and finds her own life becoming tied to his story. Across generations, family memory, danger, and destiny converge in the Montana wilderness.
The Bowman Boys
by DW Ulsterman
2018
In Prohibition-era Sultan, Washington, Levi Bowman and his four sons build a whiskey business in a hard, isolated mountain town. As enemies circle, the family must decide what it will take to protect its home.
Roche Harbor Rogue
by DW Ulsterman
2019
A message from a dead mentor sends Adele Plank searching for answers in Roche Harbor. A stranger, an island shaman, and the threat of an old enemy pull her toward a mystery with roots in both past and future.
Turn Point Massacre
by DW Ulsterman
2020
Reporter Adele Plank faces an adversary determined to return to the San Juan Islands and avenge a brother's death. With trust in short supply and a personal crisis looming, she must uncover who is planning the next strike.
Deadman Island:
by DW Ulsterman
2021
Two dead kayakers and a badly injured child draw reporter Adele Plank into a terrifying new island mystery. As the danger deepens, Adele is pushed to confront both the case and the limits of her own resolve.
Vaughn's Hill
by DW Ulsterman
2022
Returning to the Montana world of Savage, this story follows people preparing to defend their community, land, and way of life as instability closes in. Family history and spiritual connections shape the choices they must make.
Where to start with DW Ulsterman
For island-set mysteries: The Writer → Dark Waters → Murder on Matia → Rosario's Revenge.
For Montana family drama: The Irish Cowboy → Savage → Vaughn's Hill.
For military action: Mac Walker's 40,000 Feet → Mac Walker's American Jihad → Mac Walker's Benghazi.
For Washington, D.C., noir: The Second Oldest Profession → Bonita → Take Two and Call Me in The Morgue.
For dystopian survival fiction: Dominatus: Liberty. Freedom. Family. → Tumultus → Race Wars: Omnibus One: Seasons 1-5.
DW Ulsterman sub-series and character series
Bennington P.I. books in order
Explore this seriesMac Walker books in order
Explore this series
Dominatus: Liberty. Freedom. Family.
by DW Ulsterman
2013Mac Walker, Book 1
Mac Walker's Betrayal
by DW Ulsterman
2013Mac Walker, Book 3
Mac Walker's Regret
by DW Ulsterman
2013Mac Walker, Book 4
Tumultus
by DW Ulsterman
2013Mac Walker, Book 2
Mac Walker's 40,000 Feet
by DW Ulsterman
2014Mac Walker, Book 5
Mac Walker's American Jihad
by DW Ulsterman
2015Mac Walker, Book 6
Mac Walker books in chronological order

Dominatus: Liberty. Freedom. Family.
by DW Ulsterman
2013Mac Walker, Book 1
Tumultus
by DW Ulsterman
2013Mac Walker, Book 2
Mac Walker's Betrayal
by DW Ulsterman
2013Mac Walker, Book 3
Mac Walker's Regret
by DW Ulsterman
2013Mac Walker, Book 4
Mac Walker's 40,000 Feet
by DW Ulsterman
2014Mac Walker, Book 5
Mac Walker's American Jihad
by DW Ulsterman
2015Mac Walker, Book 6
Mac Walker : Benghazi books in order
Explore this seriesMontana Adventures books in order
Explore this seriesRace Wars books in order
Explore this seriesSan Juan Islands Mystery books in order
Explore this series
Dark Waters
by DW Ulsterman
2016San Juan Islands Mystery, Book 2
The Writer
by DW Ulsterman
2016San Juan Islands Mystery, Book 1
Murder on Matia
by DW Ulsterman
2017San Juan Islands Mystery, Book 3
Rosario's Revenge
by DW Ulsterman
2017San Juan Islands Mystery, Book 4
Roche Harbor Rogue
by DW Ulsterman
2019San Juan Islands Mystery, Book 5
Turn Point Massacre
by DW Ulsterman
2020San Juan Islands Mystery, Book 6
Deadman Island:
by DW Ulsterman
2021San Juan Islands Mystery, Book 7
San Juan Islands Mystery books in chronological order

The Writer
by DW Ulsterman
2016San Juan Islands Mystery, Book 1
Dark Waters
by DW Ulsterman
2016San Juan Islands Mystery, Book 2
Murder on Matia
by DW Ulsterman
2017San Juan Islands Mystery, Book 3
Rosario's Revenge
by DW Ulsterman
2017San Juan Islands Mystery, Book 4
Roche Harbor Rogue
by DW Ulsterman
2019San Juan Islands Mystery, Book 5
Turn Point Massacre
by DW Ulsterman
2020San Juan Islands Mystery, Book 6
Deadman Island:
by DW Ulsterman
2021San Juan Islands Mystery, Book 7
The Sultan Saga books in order
Explore this seriesStandalone DW Ulsterman books
Author bio
D.W. Ulsterman writes mysteries, thrillers, political suspense, and stories about people under pressure. His books move from the misty waters of Washington's San Juan Islands to Washington, D.C., Montana ranch country, remote Alaska, and imagined futures where survival is never simple.
He has kept much of his early life private, so public profiles do not offer much detail about where he was born or raised. What is clear is that the Pacific Northwest matters to his work. The region's islands, forests, small towns, and long stretches of water show up again and again, not just as scenery but as places where people carry secrets and have to live with what they choose.
Ulsterman began publishing fiction in the early 2010s. His early work included the Mac Walker stories, fast-moving action thrillers centered on a former Navy SEAL, and the Frank Bennington books, which follow a weary former Washington insider turned private investigator. Both series mix danger, political distrust, and characters who tend to act before they have every answer.
He has said that he sometimes gets up and acts out scenes while writing, a habit that helps him picture how a moment might unfold. His listed influences include writers such as Vince Flynn, Brad Thor, Tom Clancy, Stephen King, J. D. Salinger, Elmore Leonard, Charles Bukowski, and C. J. Box. That broad reading list helps explain why his books can shift between military action, private-eye mysteries, family drama, and the supernatural.
Then came The Writer, the novel that introduced college journalist Adele Plank and the San Juan Islands Mystery series. Adele starts as a young reporter drawn into a troubling interview with a reclusive novelist, then becomes the center of a continuing run of island-set mysteries. The books pair murders, local history, uneasy friendships, and romance with the practical details of boats, marinas, weather, and close-knit communities.
The island setting has become a home base for his fiction.
Outside that series, The Irish Cowboy takes a more personal route, using Montana country and family history for a story about regret, love, and second chances. The later Montana Adventures books, including Savage and Vaughn's Hill, keep returning to questions of inheritance, land, loyalty, and what a community will do when its world begins to change. The Bowman Boys goes back to Prohibition-era Washington, following a family trying to protect its place in a rough mountain town.
Ulsterman also writes overtly speculative and political fiction. Dominatus and Tumultus imagine a future United States under an authoritarian global regime, while the Race Wars omnibus volumes follow a country split apart by violence and manipulation. These books are blunt, high-stakes stories, often built around people deciding whether to run, hide, or resist.
His work is connected by a few steady interests: outsiders who become protectors, communities with long memories, family bonds, political power used badly, and the cost of telling the truth. Even when the stories move into conspiracy or apocalypse, they usually stay focused on a small group of people trying to hold on to one another.
Ulsterman has described living in the Pacific Northwest with his wife and family, and spending time on the waters around the San Juan Islands. That connection comes through on the page. The boats know the tides, the towns know their gossip, and the landscape is never merely a backdrop.
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