The best private investigator books

The book begins with the death of Lady Julia’s husband at a dinner party at their house. Both Julia and the doctor believe he suffered a heart attack. Only an enigmatic private inquiry agent, hired by her husband, thinks Edward was murdered. When Julia discovers a threatening note to her husband, she determines to find his killer with the help of the inquiry agent. Over the course of their investigation, Julia changes from a naïve young wife to a mature woman, confident in her abilities. I loved the wonderfully eccentric characters in this book. After Edward’s death, Julia’s sister consoles her, “Don’t fret, dearest. You have always looked striking in black.” 

Intricately woven romantic suspense set in New Orleans.

I love a book where the ending is a surprise, and the characters are entertaining and intelligent. You will fall in love with the secondary characters. Gabe is a chef who father is dead, but the authorities call it a suicide. He doesn’t believe it and hires a private investigator, Molly.

There are good cops and some really bad cops. Fantastic ride. Finished it in one sitting. 

Can you call it “urban fantasy” when most of the action happens in rural areas? You really get a sense of how much young Paxton Locke lost when his mother murdered his father to summon a demon, and how that shapes him in the present into a man who goes out of his way to help others all over the country. Paxton isn’t the only character whose layers we get to dig into either. Without spoiling anything, he does pick up a sidekick in his travels who is more than meets the eye, and the narration occasionally switches to some other colourful characters on their own arcs to intersect Paxton’s.

This book is one of a series of Mathew Scudder stories by Block. I enjoy his books because his main character is as flawed as we are. Matt is a hard-drinking former cop who goes about helping friends out of their troubles. And his friends are in a lot of trouble. Action and close calls, as well as humor, abound in this well-crafted story.

The Suicide Murders introduces Benny Cooperman, one of the most beloved characters in Canadian fiction, and a major influence on my own crime fiction. Howard Engel’s 14 Cooperman novels are filled with sharp dialogue and sparkling wit, and play with the tropes of detective fiction. A nice Jewish boy who runs a small detective agency, Benny doesn’t swear or carry a gun, and he’s squeamish about violence—much like my Pat Tierney protagonist--giving the PI genre a distinctly Canadian twist. 

The Suicide Murders was released in 1980, and Engel’s impact on crime fiction was enormous. He set most of the Cooperman books in the fictional town of Grantham, recognizable as St. Catharines, Ontario, where he grew up. Engel proved that writers could set stories on their own turf and have them published.

The Dawn Patrol is the first in Winslow’s Boone Daniels detective series. It has many hallmarks of a Winslow novel: a Southern California backdrop (San Diego), a host of morally ambiguous characters, a generally good guy trying to do what’s right, snappy writing, and surfing. This book also presents a surf culture we’ve come to recognize from television and movies, with a language, that while not universally shared by all surfers, is understood as the sport’s lingua franca—dude, gnarly, epic, wipeout. Where this book excels, however, is in capturing surfing’s dualistic nature as both a solitary pursuit and a place of a tight-knit community. Main character Boone Daniels is both the lone wolf and a member of a pack, one that can both have his back in the lineup and turn on him on dry land.

On the surface at least, Santa Fe is an artsy place full of elegant and sophisticated people. Private investigator Joshua Croft is none of these things, but he does know his way around town. His partner Rita Mondragon is older and wiser and better connected than Joshua. She’s also rather mysterious. Together they solve cases that either have baffled the local police or were of no particular interest to them. In Wall of Glass, the first in the series, a jewelry theft followed quickly by two seemingly unrelated murders draw the pair into the dark world of contraband art and artifacts. We particularly like this series for the complex and nuanced relationship between the two protagonists, and for the ways in which the author captures both the physical and cultural environment of one of America’s oldest cities. 

This book is on the list because it affected me. Rather deeply. 

The story is impossible to label – part thriller, part mystery, part dark comedy – but I recommend taking the journey. It’s the tale of two long unsolved crimes, a brutal armed robbery and the disappearance of a teenage girl, and a quest to find the truth.

Lou Berney is a gifted storyteller. I hope you enjoy him too!

I'm not much into family, so it says a lot that I'm putting this one on my list. At least the Spellmans are dysfunctional. In a funny way. And that's an impressive achievement. There are six books in this series, and I've read them all. No question, time well spent.

I love a good mystery that also makes me laugh. Kinky Friedman does that on almost every page. He is most known for his singing and songwriting, (and his run for Texas Governor), but I’ve found all his books to be page-turners and laugh-out-loud funny. In Spanking Watson, Kinky calls upon his real-life friends to help him solve a mystery that he instigated. Kind of a test to evaluate his future assistant, or Watson to his Sherlock. 

It’s been a while since I read this book, but I remember thinking every place described felt real. It hits all the right notes of thriller with a fallible yet strong heroine who gets the job done, sometimes at great personal cost. Michael is as close to a shapeshifter as normal humans can be. She can become anybody. (Content warning – contains strong language)

The strengths of Wentworth’s books lie in the portrayal of the era, and in the characters who are forced to find their way through unfamiliar and difficult circumstances. They are not all wealthy, they are not all high-born, and we watch them as they try to adapt to wartime conditions and deprivations. 

Wentworth’s mysteries are fascinating, clever, with the protagonist Miss Silver, a spinster who is a professional ‘private enquiry agent’. The Listening Eye, I feel, contains some of the most acute observations of human nature, and this makes the characters just seem so relatable. Wentworth books are ‘clean’ mysteries with a strong thread of romance, little gore, no bad language, or sexy shenanigans.

For those who prefer their mysteries to be driven by British proprieties and comforts set against compelling social issues, Will Thomas is a must-read author. 

The reader is taken downstairs and up, through gritty back alleys and up Pall Mall. You learn the city of London and its history via vivid conversation, prose, and action. I have read them all with pleasure. Listening to the audiobooks becomes necessary when you wish to immerse yourself in the varied accents, narrated by the wonderful Antony Ferguson. The mysteries are each of them excellent, but Barker and Llewellyn, enquiry agents extraordinaire, along with the supportive characters, become like dear friends with whom you wish to revisit regularly.

In Escape from Sunset Grove, Minna Lindgren gives us a delightful contemporary cozy murder mystery whose protagonists, the nonagenarian amateur sleuths of the Lavender Ladies Detective Agency, live in a Finnish Retirement Apartments complex. When their quiet lives are quite literally broken to bits by unskilful plumbers, Siiri and Irma innocently go in search of a quieter place to drink a cup of coffee—and find a murderer.

The humour in Lindgren’s delightful cozy series, excellently translated by Kristian London, is quieter than Caudwell’s sparkling masterpieces but just as enjoyable. Called with some justice “The Finnish Miss Marple” the Lavender Ladies appeal to all age groups.

All of the authors I love do twists really well, twists that make sense and blow you away–no matter how much you try to guess them. This story is set in the world of addictive pharmaceuticals and the desire to make a corrupt company that’s hiding secrets pay for the deaths of innocent patients. A whistleblower is killed early in this story, and this sets everything off. It’s fast-paced with so much action, including bullets flying in the Caribbean as the main characters risk their lives to get incriminating evidence. The ending…oooh, it doesn’t get better than a Joseph Finder twist!

Dave Robicheaux is a New Iberia, Louisiana, sheriff’s detective in a series by James Lee Burke. You don’t want to get on the wrong side of Dave. He is righteous, but flawed. He regularly attends Alcoholics Anonymous meetings, struggles with nightmares of Viet Nam and other unseen demons, but has an acute sense of right and wrong. In Crusader’s Cross, his loyal sidekick, Cletus Prucell says of Dave, "He's got polka dot giraffes running around in his head, but he's the best guy I've ever known.” I’m a Burke fan, and I like everything he writes. In the Electric Mist with Confederate Dead, and Purple Cane Road are my personal favorites. In Electric Mist, Dave is drawn into a 40-year-old unsolved murder that he witnessed as a college freshman. In the midst of his investigation, Dave has regular conversations with the ghost of Confederate General John Bell Hood.… show more.

From the first sentence, “There’s a bullet in my chest…,” you know this story is going to be exciting. Set in the U.P. on the banks of Lake Superior, Paradise is a town with plenty of work for a newly-licensed private investigator. Hamilton’s protagonist is an ex-cop who barely escaped death, is dealing with PTSD, and just wants to live a quiet life chopping wood, having a beer at the pub, and on occasion getting a non-violent case to work. 

This author knows how to ramp up the action and keep the reader turning pages. He makes a well-worn mystery twist (a convicted murderer serving a life sentence appears to be killing people on the outside), seem brand-new and completely original.

Smarmy personals ads. Daring declarations of love. Freelance writer Jaine Austen has penned them all. But no one needs her help more than geeky, gawky Howard Murdoch. His request is simple enough: a letter proclaiming his undying love for Stacy Lawrence, a gorgeous aerobics instructor. The fact that he's never actually met the woman gives Jaine pause—yet she soon overcomes her misgivings, and the unlikely Romeo lands a date! But his triumph is short-lived. On Valentine's Day, Howard finds Stacy bludgeoned to death with a Thigh Master—and is quickly named the prime suspect.

Jaine is shocked. Sure, Howard's awkward and eccentric. But a murderer? That's hard to believe. Especially after a little sleuthing reveals a plethora of people who harbored less-than-loving feelings towards the svelte Stacy. Now Jaine had better wrangle her clues quickly, before a crafty killer catches on—and puts a whole new spin on her ghost-writing career....

You’re… show more.

In many ways, Marcia Mueller started it all by introducing readers to Sharon McCone, a modern-day woman sleuth and staff investigator for All Souls Legal Cooperative. In Edwin of the Iron Shoes, she works to solve the murder of antiques dealer Joan Albritton. Her investigation takes Sharon from the antiques and curios shops of San Francisco’s Salem Street to a museum frequented by the city’s social elite. I love strong, self-deprecating women characters of which Sharon is one. From my observation, Sharon McCone became a role model for Kinsey Milhone, V.I. Warshawski, Stephanie Plum, and so many others including my sleuth, Ricky Steele.

Reading a Lindsey Davis novel is a guilty pleasure. Why? She’s wickedly funny. She brings ancient Rome to vivid life, from the fancy fringe on a tunic hem to the steaming pile of donkey dung in the street. Her sleuth, a tough, no-nonsense woman named Flavia Albia, is assisted (whether she likes it or not) by an extended family of eccentric and sometimes meddlesome characters. I also appreciate how Davis adds just enough historical detail to bring the plot to life without bogging down the action. 

In this book, I particularly enjoyed the interplay between Albia and the officious aedile, Manlius Faustus, who turns out to be nicer (and more interesting) than he first appeared. While each novel is stand-alone, I recommend starting here to get the full backstory.