Private Investigators Mysteries

The story is not your typical murder mystery. The sleuth is not a detective, private eye, or lawyer. He's an ordinary guy with an extraordinary dog. Jacob Martin is trying to make the best of a divorce and mid-life crisis when he gets a call at two o'clock Sunday morning from his mother. His sister has been arrested for the murder of her fourth husband, and his father is near death. Thus begins an adventure that takes Jake and his golden retriever from their Colorado retreat to a backwater town in the Missouri Ozarks.

When an old acquaintance, finance magnate Eleanore Paget, hears August is back in town, she tries to hire him to investigate suspicious goings-on at her investment bank. August declines - detective work is no longer his beat. When Eleanore is found dead the next day of an apparent suicide, August doesn't buy it for a minute. His search for her killer will drag him into a rat's nest of Detroit's most dangerous criminals.

For the men of Madison Avenue, the battle between soft-drink giants Cherr-o-key and AmeriCherry seems heaven-sent. For years now, the firm of Mills/Lake/Ryman has fought to help Cherr-o-key become the nation’s favorite fizzy cherry soda, but each time they come up with a new slogan, mascot, or jingle, AmeriCherry somehow beats them to it. There’s a mole inside the agency, and only Nero Wolfe can ferret him out.

Vivian, a former reporter and a newlywed, doesn’t know what to do with herself after an incident with her husband forces her to question their partnership and her future. Yearning for the ocean air and a sense of home, she retreats to Tybee Island to clear her head and visit her Nana, a retired PI who now struggles with dementia. The phone rings: Catherine Grant, a housewife living in a private development nearby, woke up to find her husband and their baby girl missing, and she is desperate for help.

Sarah Booth just wants the perfect Christmas holiday. Even with the dissolution of her engagement, she refuses to lose her Christmas spirit. But when Theodora Prince - an ex classmate and current Pastor's wife - comes calling with a year-old case and cash upfront, Sarah Booth must find the truth about the boys who ruined last year's Christmas pageant in time to stop them from doing it again.

Some people think Hawaii is paradise, but Monk knows that danger, like dirt, lurks everywhere. Look at Helen Gruber, the rich tourist who took a fatal blow from a coconut. The police say it fell from a tree, but Monk suspects otherwise. His assistant Natalie isn't exactly thrilled about Monk's latest investigation. It was bad enough Monk followed her on vacation, and now it looks like the vacation is over.

Far beneath the sands of Alexandria, an archaeological team digs deeper than anyone has before, seeking an ancient power older than the pyramids. What they unearth is an evil that threatens the whole world. First it targets the worst of humanity: Ex-Nazis, Central American warlords, and the pushers who peddle drugs to children are found massacred, ripped limb from limb without having fired a shot in their own defense. But the next to die will be ordinary people.

The trouble at the Conlee’s lakeside estate begins when vandals topple and destroy an expensive Italian fountain. Then they slash the tires and damage the paint job on a Jaguar. That’s when Roy Ballard's client, the insurance company, asks him to catch the vandal in the act and prevent future claims. Surprisingly, the homeowner, Norman Conlee, opposes the idea. He intends to address the problem himself by fencing the property and keeping his revolver handy. Eventually, though, he gives in, and Roy goes to work.

Atticus Riot took a bullet to his head the day his partner was killed. Three years later, Riot returns to San Francisco to put his ghosts to rest, but the abduction of an heiress snags his attention. Two ransom demands are delivered, and the husband of the abducted Isobel Kingston is hiding the truth. The clock is ticking. Can Riot find Mrs. Kingston in time, or will she become one more regret among many?

Meet Roy Ballard, freelance videographer with a knack for catching insurance cheats. He's working a routine case, complete with hours of tedious surveillance, when he sees something that shakes him to the core. There, with the subject, is a little blond girl wearing a pink top and denim shorts - the same outfit worn by Tracy Turner, a six-year-old abducted the day before. When the police are skeptical of Ballard's report - and with his history, who can blame them? - it's the beginning of the most important case of his life.

World famous concert pianist Felix Lansman has a collection of postcards sent to him anonymously. He is sure they are from the love of his life, Jamie McLeash. But Jamie disappeared six years ago - the night Felix’s father was murdered. Police failed to make any arrests and the case was closed. Was Jamie a suspect and if so, why is he sending the postcards? Felix wants Ian to find out.

A new novel from Mulholland Books / Little, Brown and Company, publishing September 2025.

Werebear shifter Annette Garsea is a caseworker for the Interspecies Placement Agency. When a selectively mute and freakishly strong teen werewolf is put in her custody, Annette has to uncover the young girl's secrets if she's to have any hopes of helping her. And not even the growling of a scruffy private investigator can distract her from her mission....

September 1909, and Lady Hardcastle and her maid, Florence, have been invited to Lord Riddlethorpe’s country estate for a week of motor racing and parties. They both agree that it sounds like a perfectly charming holiday. But when one of the drivers dies in a crash during the very first race, they discover that what seemed like an uncharacteristic error in judgement may have a more sinister explanation...

Henry Parker's life is looking up. He just landed his dream job as a reporter at the renowned New York Gazette, has a great girlfriend, and the world at his fingertips. Henry is smart. Ambitious. Determined. He's ready to take the world by storm. But Henry's dream is about to turn into a nightmare.... On his first assignment, a man ends up dead, and Henry finds himself on the run and accused of murder. On his trail is a dogged cop who wants to see Henry behind bars, and a ruthless, demented assassin who wants to see Henry dead. Henry's only hope of survival is a woman he barely knows.

A perfectly plotted crime is foiled by a runaway bank clerk as Inspector Littlejohn navigates impersonation, forgery, embezzlement...and a murder. It was meant to be a fool-proof scheme. The victim was a recluse, cut off from the world after the death of his wife. Nobody would think it strange when they didn't see him. Nobody would make inquiries. Yet, even the most meticulous of criminals can be caught out, especially if they don't leave room for human error.

Only a few weeks into her new job as a private investigator, Lexi Graves thinks she may have bitten off more than she can chew with her first solo cases. In between going undercover as a plush pony at a "Bronie" conference and following her cheating brother-in-law, she's got a saboteur-turned-killer to catch and a missing woman to find. Two of her cases may be connected, but how? Her boss, the mysterious Solomon, meanwhile, hopes to get her between the sheets....

Thirty-year-old society matron Lola Woodby has survived her loveless marriage with an unholy mixture of highballs, detective novels, and chocolate layer cake until her husband dies suddenly, leaving her his fortune, or so Lola thinks. As it turns out, all she inherits from Alfie is a big pile of debt. Pretty soon Lola and her stalwart Swedish cook, Berta, are reduced to hiding out in the secret love nest Alfie kept in New York City.

Cleo is hired by the housekeeper at a Mayfair residence after the police rule the sudden death of the butler was the result of natural causes. Not convinced by the verdict, she wants Cleo to prove foul play was involved. Considering he was acting mysteriously around some of the guests, and they were equally mysterious when they saw him, murder is a possibility. When the investigation leads Cleo to another decades-old murder and the sudden disappearance of the primary suspect, she’s even more determined to uncover the truth.

Gus Murphy and his girlfriend, Magdalena, are put in harm's way when Gus is caught up in the distant aftershocks of heinous crimes committed decades ago in Vietnam and Russia. Gus' ex-priest pal, Bill Kilkenny, introduces him to a wealthy businessman anxious to have someone look more deeply into the brutal murder of his granddaughter. Though the police already have the girl's murderer in custody, they have been unable to provide a reason for the killing.