Quint Adler Books in Order
Part ofBrian O'Sullivan Books in OrderExplore the Quint Adler series by Brian O'Sullivan in order, with book summaries, series background, and clear guidance on where to start reading.
Last updated: July 14, 2026
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Quint Adler books in publication order
8 books
Revenge at Sea
by Brian O'Sullivan
2020
After a bar fight lands crime reporter Quint Adler in the hospital on his fortieth birthday, he overhears a disturbing conversation. His investigation into a string of murders soon makes him the prime suspect.
The Bay Area Butcher
by Brian O'Sullivan
2020
A letter-writing killer announces a murder spree and singles out Quint Adler by name. As bodies begin to fall, Quint must decipher the taunts and stop a murderer determined to outdo the Bay Area's most infamous crimes.
Hollywood Murder Mystery
by Brian O'Sullivan
2021
Newly licensed private investigator Quint Adler visits Los Angeles, where a Hollywood producer fears for his life. When the producer is murdered the next morning, Quint enters a dangerous world of secrets, suspects, and studio power.
Nine Days In Vegas
by Brian O'Sullivan
2021
Quint Adler heads to Las Vegas to find missing showgirl Emmy Peters, but there are no suspects and almost no evidence. Casinos, gambling, and a startling text message push his investigation toward a far darker truth.
Quint Adler, P.I.
by Brian O'Sullivan
2021
A ninety-two-year-old man asks Quint Adler to solve his grandson's twenty-year-old murder after police stop investigating. Moved by the man's grief, Quint takes the cold case and finds himself facing his most dangerous work yet.
A Knife Through The Heart
by Brian O'Sullivan
2022
When businessman Archer Keats is arrested for murdering his wife, his defense team hires Quint Adler to investigate. What looks like a simple case quickly fills with suspects, secrets, and reasons to doubt every version of events.
Persona Non Grata
by Brian O'Sullivan
2023
Private investigator Quint Adler takes on another dangerous case where the people involved have plenty to hide. As the mystery deepens, he must decide whom to trust before the investigation turns against him.
The Final Chapter
by Brian O'Sullivan
2024
A grieving wife believes the missing final chapter of her husband's autobiography explains his murder. Quint Adler is skeptical until people who read the manuscript begin dying, forcing him into a case with deadly stakes.
Quint Adler books in chronological order

Revenge at Sea
by Brian O'Sullivan
2020Quint Adler, Book 1
The Bay Area Butcher
by Brian O'Sullivan
2020Quint Adler, Book 2
Hollywood Murder Mystery
by Brian O'Sullivan
2021Quint Adler, Book 3
Nine Days In Vegas
by Brian O'Sullivan
2021Quint Adler, Book 4
Quint Adler, P.I.
by Brian O'Sullivan
2021Quint Adler, Book 5
A Knife Through The Heart
by Brian O'Sullivan
2022Quint Adler, Book 6
Persona Non Grata
by Brian O'Sullivan
2023Quint Adler, Book 7
The Final Chapter
by Brian O'Sullivan
2024Quint Adler, Book 8
Series background & context
The Quint Adler books are crime thrillers about a man who starts as a dissatisfied crime reporter and gradually becomes a private investigator. Quint wants bigger stories than his small-town beat can offer, but his curiosity keeps placing him in situations that no sensible person would choose. He follows leads, asks difficult questions, and has a habit of treating official warnings as a reason to dig deeper.
It begins in Revenge at Sea, when Quint lands in the hospital on his fortieth birthday and overhears a conversation he was never meant to hear. His decision to investigate pulls him into a string of murders and makes him a suspect. That first case establishes the series pattern: Quint is not a cop, he does not have much protection, and powerful people would prefer he stop looking.
He rarely does.
The series moves through California, Los Angeles, Las Vegas, and the world around each case. In The Bay Area Butcher, a letter-writing killer draws Quint into a terrifying murder spree. Hollywood Murder Mystery sends him to Los Angeles, where the death of a producer leaves a growing pool of suspects. Nine Days In Vegas finds him looking for a vanished showgirl among casinos, gambling, and the distractions of Sin City.
By Quint Adler, P.I., Quint has his own firm and is asked to revisit a murder that has gone unsolved for two decades. The later books keep testing him with legal trouble, old secrets, dangerous clients, and cases where the obvious explanation is usually the wrong one. A Knife Through The Heart turns on the murder of a businessman's wife, while The Final Chapter sends Quint after the missing last section of an unfinished autobiography that may explain a killing.
The stakes are personal, but the mysteries are the engine.
These are brisk, plot-led books with a noir-flavored private-eye setup. Quint is resourceful but not invincible, and his cases can take him from police stations and courtrooms to casinos, film-industry parties, and places far less welcoming. The series also has room for recurring relationships and the cost of Quint's choices, so reading in order gives the strongest sense of his growth from reporter to investigator.
Start with Revenge at Sea. Each case has its own main mystery, but the eight-book sequence works best as a continuous run, ending with The Final Chapter.
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