Here are 32 books that The Invisible Code fans have personally recommended if you like The Invisible Code. Book DNA is a community of 12,000+ authors and super readers sharing their favorite books with the world.

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Book cover of Dog on It: The Chet and Bernie Mystery, Book 1

Jacqueline Diamond Author Of The Case of the Questionable Quadruplet

From my list on unusual and heartwarming mysteries.

Why am I passionate about this?

Half a century ago (hard to believe!), as a young newspaper reporter, I began every day at a police station, reading the log and talking to the watch commander. Occasionally, I was able to contact the detectives as well. For me, the way crimes and criminal investigations unfolded, and the personalities of the officers involved, were multi-dimensional and touched with surprising, and often unexpected, moments of humor. In my reading as well as my writing, I seek a balance between authenticity and a sense of the absurd, without which the experience of solving murders—real or fictional—could become emotionally crushing. 

Jacqueline's book list on unusual and heartwarming mysteries

Jacqueline Diamond Why Jacqueline loves this book

A mystery narrated by a dog? It sounded like a gimmick to me, until I started reading. Honestly, this dog thinks and reacts like a dog, and he’s hilarious! The tightly woven storyline—Chet “belongs” to a detective who’s investigating a girl’s disappearance—pulled me along nonstop, but mostly I fell in love with the writing. As a rule, I enjoy experiencing the world from a fresh perspective, along with a storyline that turns and twists and makes perfect sense in an unexpected way, as this one does. Trigger warning: Chet the pooch has some scary and even near-death moments en route to his happy ending. 

By Spencer Quinn ,

Why should I read it?

2 authors picked Dog on It as one of their favorite books, and they share why you should read it.

What is this book about?

The first book of the New York Times bestselling Chet and Bernie mystery series, an “enchanting one-of-a-kind novel” (Stephen King) that is “nothing short of masterful” (Los Angeles Times).

Chet, the wise and lovable canine narrator of Dog on It, and Bernie, a down-on-his-luck private investigator, are quick to take a new case involving a frantic mother searching for her teenage daughter. This well-behaved and gifted student may or may not have been kidnapped, but she has definitely gotten mixed up with some very unsavory characters. With Chet’s highly trained nose leading the way, their hunt for clues takes them…


If you love The Invisible Code...

Book cover of These Blue Mountains

These Blue Mountains by Sarah Loudin Thomas,

A moving story of love, betrayal, and the enduring power of hope in the face of darkness.

German pianist Hedda Schlagel's world collapsed when her fiancé, Fritz, vanished after being sent to an enemy alien camp in the United States during the Great War. Fifteen years later, in 1932, Hedda…

Book cover of A Morbid Taste for Bones

Roxanne Dunn Author Of Murder Richly Deserved

From my list on the good guys win and the bad guys lose.

Why am I passionate about this?

Bad things happen to good people every day, and it seems unfair. I’ve lost friends to cancer, heart disease, and accidents, and I always wonder why it had to be someone who was decent and good and kind. At the same time, other people get away with all sorts of crimes, including murder. I can’t change the way the world works. So, in my own books and the books I like to read, the good guys might have some tough times, but in the end, they win. And the bad guys get what they deserve.

Roxanne's book list on the good guys win and the bad guys lose

Roxanne Dunn Why Roxanne loves this book

I love learning how people lived in other times via historical fiction, and Cadfael, a Benedictine monk who practiced healing arts in England in the 1100s, is one of my favorite characters.

I like hearing his opinions about the civil war that raged at that time and the church’s role in it. I like the fact that he’s a bit of a maverick who pushes beyond the bounds of his role as a monk to solve mysteries.  

By Ellis Peters ,

Why should I read it?

8 authors picked A Morbid Taste for Bones as one of their favorite books, and they share why you should read it.

What is this book about?

In the gentle Shrewsbury spring of 1140 the midnight matins at the Benedictine abbey suddenly reverberates with an unholy sound - a hunt in full cry. Pursued by a drunken mob, the quarry is running for its life. When the frantic creature bursts into the nave to claim sanctuary, Brother Cadfael finds himself fighting off armed townsmen to save a terrified young man. Accused of robbery and murder is Liliwin, a wandering minstrel who performed at the wedding of the local goldsmith's son. But his supposed victim, the miserly craftsman, is still alive, although a strongbox lies empty. Brother Cadfael…


Book cover of Louisiana Longshot

Wendy Delaney Author Of Trudy, Madly, Deeply

From my list on lighthearted mysteries for some fun escapism.

Why am I passionate about this?

I’d always been a bookworm, but once I settled into a not-so-exciting career, I became a voracious reader of romance and mystery to escape the monotony of my day job. I’d frequent the library during my lunch breaks and devour the titles by my favorite authors. While this was entertainment, it was also educational. My love for writing became rekindled, and I started studying cozies and romantic mysteries with the goal to write what I most loved to read: fun, lighthearted mystery. I especially enjoy writing and reading humorous whodunits that are populated by quirky, loveable characters as reflected by my list. I hope you enjoy them too!   

Wendy's book list on lighthearted mysteries for some fun escapism

Wendy Delaney Why Wendy loves this book

A CIA assassin who is forced to go undercover as a girly girl in the tiny bayou town of Sinful, Louisiana? From that premise alone, I knew this would be a fun read, and wow, does Jana DeLeon ever deliver in book one of her Miss Fortune Mystery series.

It’s a fabulous fish-out-of-water story filled with quirky characters of all ages, secrets that refuse to stay buried, and wrongs to be made right. There’s a splash of romance and plenty of laughs in this well-paced, sassy whodunit. My favorite kind of lighthearted mystery!

By Jana DeLeon ,

Why should I read it?

8 authors picked Louisiana Longshot as one of their favorite books, and they share why you should read it.

What is this book about?

It was a hell of a long shot....


CIA assassin Fortune Redding is about to undertake her most difficult mission ever-in Sinful, Louisiana. With a leak at the CIA and a price placed on her head by one of the world's largest arms dealers, Fortune has to go off-grid, but she never expected to be this far out of her element. Posing as a former beauty queen turned librarian in a small bayou town seems worse than death to Fortune, but she's determined to fly below the radar until her boss finds the leak and puts the arms dealer out…


If you love Christopher Fowler...

Book cover of The Last Whaler

The Last Whaler by Cynthia Reeves,

This book is an elegiac meditation on the will to survive. Tor, a beluga whaler, and his wife, Astrid, a botanist specializing in Arctic flora, are stranded during the dark season of 1937-38 at his remote whaling station in the Svalbard archipelago when they misjudge ice conditions and fail to…

Book cover of Murder by Misrule

Jacqueline Diamond Author Of The Case of the Questionable Quadruplet

From my list on unusual and heartwarming mysteries.

Why am I passionate about this?

Half a century ago (hard to believe!), as a young newspaper reporter, I began every day at a police station, reading the log and talking to the watch commander. Occasionally, I was able to contact the detectives as well. For me, the way crimes and criminal investigations unfolded, and the personalities of the officers involved, were multi-dimensional and touched with surprising, and often unexpected, moments of humor. In my reading as well as my writing, I seek a balance between authenticity and a sense of the absurd, without which the experience of solving murders—real or fictional—could become emotionally crushing. 

Jacqueline's book list on unusual and heartwarming mysteries

Jacqueline Diamond Why Jacqueline loves this book

In Elizabethan England, Christmas revelries were presided over by a Lord of Misrule. During this season of legitimized misconduct, the brilliant Sir Francis Bacon requires surreptitious help in solving the murder of a fellow barrister in hopes of regaining the queen’s favor, from which he’s been ousted. It falls to his protégé, Thomas Clarady, to probe through disguises and earn the trust of a range of women, from the educated to the bawdy, in order to find the answers in time to prevent catastrophe. I love the Tudor period with all its riches, and this first entry in the Francis Bacon Mystery Series feels emotionally and historically credible.

By Anna Castle ,

Why should I read it?

1 author picked Murder by Misrule as one of their favorite books, and they share why you should read it.

What is this book about?

Brilliant Francis Bacon is at a loss -- and in danger.
Bacon must put down his books and investigate the murder of a fellow barrister at Gray's Inn in order to regain the queen's favor. He recruits his unwanted protégé, Thomas Clarady, to do the tiresome legwork. The son of a wealthy privateer, Tom will gladly do anything to climb the Elizabethan social ladder. The first clues point to a Catholic conspirator, but other motives for murder quickly emerge. Rival barristers contend for the victim's legal honors and wealthy clients. Highly-placed courtiers are implicated as the investigation reaches from Whitehall…


Book cover of Bad Monkey

Wendy Church Author Of Knife Skills

From my list on plot twists that nail the art of surprise.

Why am I passionate about this?

I’m a thrill seeker when it comes to reading, and I want to be so immersed in a story that I have to read it in one sitting and then can be completely taken by surprise by a plot twist. It was extremely hard to pick only five titles, so to narrow it down, I 1) made an attempt to pick from a few different sub-genres and, 2) stipulated that Agatha Christie could populate the entire list. All of these titles blend wonderful writing with great twists, and I hope you enjoy them. I did my best to avoid spoilers in the descriptions, although by being on this list, it’s a little bit of a spoiler…

Wendy's book list on plot twists that nail the art of surprise

Wendy Church Why Wendy loves this book

This book is the first in Hiaasen’s Andrew Yancy series, and like all of his books, most of it takes place mucking around in Florida wetlands. I lived in Winter Haven for a few years as a teenager, and enjoyed reminiscing about that time while following Yancy around the state.

Hiaasen’s known for being a little wacky and a lot funny, more than his plot twists, but this book brings the surprise. This one’s funnier than the rest of the books on this list, making it the ultimate beach read, ideally accompanied by a cool glass of swampwater. 

By Carl Hiaasen ,

Why should I read it?

3 authors picked Bad Monkey as one of their favorite books, and they share why you should read it.

What is this book about?

When a severed arm is discovered by a couple on honeymoon in the Florida Keys, former police detective - now reluctant restaurant inspector - Andrew Yancy senses that something doesn't add up. Determined to get his badge back, he undertakes an unofficial investigation of his own.

Andrew's search for the truth takes him to the Bahamas, where a local man, with the help of a very bad monkey (who allegedly worked on the Pirates of the Caribbean movies) is doing everything in his power to prevent a developer from building a new tourist resort on the island, with deadly consequences…


Book cover of Light Thickens

R. J. Koreto Author Of Death at the Emerald

From my list on mysteries in the theatre world.

Why am I passionate about this?

I grew up in New York City, practically within walking distance of the Broadway theatre district. My first show was the original production of 1776. Everything grabbed my attention: Ian McKellan in Amadeus, Patrick Stewart in Macbeth, Richard Dreyfuss in Julius Caesar, and Rex Harrison in My Fair Lady. In high school, I was an eager, if not especially talented, member of the theatre club. I became curious about the whole theatre scene, and what could be a better place for a mystery, where actors, directors, and scene designers are already creating an alternate world.

R. J.'s book list on mysteries in the theatre world

R. J. Koreto Why R. J. loves this book

Marsh was one of the great mystery novelists, but her great love was theatre, and in this book, they come together. Few mysteries delve so deeply into the details of the theatre world. In this case, the play is Macbeth, and the murders behind the scenes eerily echo the violent play itself. The scene and setting are so gripping that it's impossible to stop reading and the ending is both surprising and satisfying. 

By Ngaio Marsh ,

Why should I read it?

1 author picked Light Thickens as one of their favorite books, and they share why you should read it.

What is this book about?

The bad news: This is the last in Ngaio Marsh's marvelous Inspector Alleyn" series. The good: It's one of her very best. The secret to Light Thickens' success may lie in its combination of some of Marsh's greatest passions, including her native New Zealand -in the person of, unusually, a Maori character - and the theater. Indeed, the plot centers on a production of...well, let's skirt disaster by calling it the Scottish play," a play that Dame Ngaio produced and directed several times. Among theater folk, the Scottish play is considered unlucky, so much so that tradition requires anyone who…


If you love The Invisible Code...

Book cover of White Picket Fences

White Picket Fences by Kyle Ann Robertson,

Tina Edwards loved her childhood and creating fairy houses, a passion shared with her father, a world-renowned architect. But at nine years old, she found him dead at his desk and is haunted by this memory. Tina's mother abruptly moved away, leaving Tina with feelings of abandonment and suspicion.

Raised…

Book cover of Plum Island

Janet Fix Author Of The Broken Soul

From my list on intriguing whodunits.

Why am I passionate about this?

Writer, reader, editor, reviewer, publisher… those are all parts of me. With a lifetime of experience in the “words” industry, I have a pretty good handle on what makes a book not just good, but hot. I say this with the understanding that each reader brings their own histories to the reading experience, and what one person may like, another may not. Nonetheless, I offer you my professional and personal favorites in the mystery/thriller/suspense categories. It is my sincere hope that you find these books as addictive as I’d found them. Superb and clever writing, engaging characters, unpredictable plots—yes, please! Though I occasionally step outside my comfort zone, I'm consistently drawn back to these categories. 

Janet's book list on intriguing whodunits

Janet Fix Why Janet loves this book

Two words for this absolutely primo mystery: John Corey. Corey is the main character in this series by the same name, and Plum Island is the first book in that series by the amazing Nelson DeMille. This is one of those books where I will always remember the actual reading experience. Why? I often read into the wee hours of the night and the entire household was fast asleep. I hit a particular scene (I won’t spoil it), and I simply burst out laughing hysterically. I couldn’t stop, thereby waking everyone up. Turned out, there was a lot of good humor still to come, and the plot was absolutely high intrigue! I always recommend this book to anyone who likes their mysteries with a dash of humor. 

By Nelson DeMille ,

Why should I read it?

2 authors picked Plum Island as one of their favorite books, and they share why you should read it.

What is this book about?

'...a page turning, high octane novel that's firing on all cylinders,' - EDINBURGH EVENING NEWS

'...a good old-fashioned murder mystery which keeps you enthralled till the very last page.' - YORKSHIP EVENING PRESS

NYPD homicide detective John Corey has moved to Long Island, restlessly recuperating from wounds received in the line of duty when he's hired to consult on the murder of Tom and Judy Gordon, biologists who worked on Plum Island, the site of animal disease research for the Department of Agriculture.

Were the Gordons murdered because they'd stolen some valuable new vaccine, or even a dreaded virus? They'd…


Book cover of Cover Her Face

H L Marsay Author Of A Long Shadow

From my list on classic English murder mysteries.

Why am I passionate about this?

I grew up binge-reading murder mysteries and promised myself that some day, I would write one too. A Long Shadow is the first book in my Chief Inspector Shadow series set in York. Luckily, living in a city so full of history, dark corners, and hidden snickelways, I am never short of inspiration. When I’m not coming up with new ways to bump people off, I enjoy red wine, dark chocolate, and blue cheese—not necessarily together! 

H L's book list on classic English murder mysteries

H L Marsay Why H L loves this book

This is another murder mystery set in a quintessential English village and where we meet detective Adam Dalgleish for the first time. The day after the church fete, Sally Jupp is found dead in her bedroom, the door locked from the inside. I loved the way tension gradually builds through the story and how expertly each character is drawn. Nobody is who they seem, including the victim.

By P. D. James ,

Why should I read it?

1 author picked Cover Her Face as one of their favorite books, and they share why you should read it.

What is this book about?

The first in the series of scintillating mysteries to feature cunning Scotland Yard detective, Adam Dalgliesh from P.D. James, the bestselling author hailed by People magazine as “the greatest living mystery writer.”

Sally Jupp was a sly and sensuous young woman who used her body and her brains to make her way up the social ladder. Now she lies across her bed with dark bruises from a strangler’s fingers forever marring her lily-white throat. Someone has decided that the wages of sin should be death...and it is up to Chief Inspector Adam Dalgliesh to find who that someone is.


Book cover of The Ice Princess

Chelsea Cain Author Of Heartsick

From my list on read alone in the dark.

Why am I passionate about this?

I’m a taxidermy-loving vegan who had a pet cemetery as a kid. So, I guess you could say I’m a bit of a Wednesday Adams. My airplane reading? Forensic pathology textbooks. When my first thrillers were published, a lot of people were surprised. “You seem so nice!” they said. “You’re so funny and happy!” Here’s a secret: thriller writers are some of the most jolly people I know. We get it all out on the page. We get to murder people for a living. So, if you cut me off in traffic or don’t RSVP to my Evite, it's no big deal. I won’t get upset. I’ll just kill you later...in a book. 

Chelsea's book list on read alone in the dark

Chelsea Cain Why Chelsea loves this book

Camilla is the so-called Queen of Nordic Noir. I got way into her books during the pandemic, which is to say I read every single one of them right after the other while I had a fever. The great thing about the Scandinavians is that they describe truly horrible happenings matter-of-factly.

I love Camilla’s books because she also adds another tension – my favorite kind of tension – the “when will the protagonists kiss?”. I will endure the most gruesome crime scenes because I’m invested in a relationship, and her series pays this off over and over.

By Camilla Läckberg , Steven T. Murray (translator) ,

Why should I read it?

3 authors picked The Ice Princess as one of their favorite books, and they share why you should read it.

What is this book about?

“A top-notch thriller, one of the best of the genre” (Minneapolis Star Tribune) from international crime-writing sensation Camilla Läckberg tells the story of brutal murders in a small Swedish fishing village, and the shattering, decades-old secrets that precipitated them.

In this electrifying tale of suspense from an international crime-writing sensation, a grisly death exposes the dark heart of a Scandinavian seaside village. Erica Falck returns to her tiny, remote hometown of Fjällbacka, Sweden, after her parents’ deaths only to encounter another tragedy: the suicide of her childhood best friend, Alex. It’s Erica herself who finds Alex’s body—suspended in a bathtub…


If you love Christopher Fowler...

Book cover of The Duke's Christmas Redemption

The Duke's Christmas Redemption by Arietta Richmond,

A Duke who has rejected love, a Lady who dreams of a love match, an arranged marriage, a house full of secrets, a most unneighborly neighbor, a plot to destroy reputations, an unexpected love that redeems it all.

Lady Charlotte Wyndham, given in an arranged marriage to a man she…

Book cover of Artists in Crime

Helen A. Harrison Author Of An Accidental Corpse

From my list on mystery novels set in the art world.

Why am I passionate about this?

Having spent my entire professional life in the art world as a practicing artist, art historian, journalist, curator, and museum director, and as an avid reader of mysteries, I’m excited when I find fiction in which art and crime coincide. Authentic settings, strong characters, and plenty of deception are de rigeur. The occasional dead body is always a plus, though not strictly required. It’s a specialized genre, but it speaks to me and inspires me to write my own series of art-world mysteries, combining fictional characters with real people from my own background and experience.

Helen's book list on mystery novels set in the art world

Helen A. Harrison Why Helen loves this book

I had great fun deciphering the period English and Australian slang in this 1938 Inspector Roderick Alleyn mystery. The ingeniously plotted murder is set in a private art school, with a cast of eccentric characters right out of a London music hall revue.

The story works best if you know some of the types (including their prejudices) whom Marsh, a prolific mystery writer, is lampooning. Alleyn and Agatha Troy, the artist who runs the school, are so well imagined that I could feel the sparks flying between them as their romance ignited.

By Ngaio Marsh ,

Why should I read it?

2 authors picked Artists in Crime as one of their favorite books, and they share why you should read it.

What is this book about?

One of Ngaio Marsh's most famous murder mysteries, which introduces Inspector Alleyn to his future wife, the irrepressible Agatha Troy.

It started as a student exercise, the knife under the drape, the model's pose chalked in place. But before Agatha Troy, artist and instructor, returns to the class, the pose has been re-enacted in earnest: the model is dead, fixed for ever in one of the most dramatic poses Troy has ever seen.

It's a difficult case for Chief Detective Inspector Alleyn. How can he believe that the woman he loves is a murderess? And yet no one…


Book cover of Dog on It: The Chet and Bernie Mystery, Book 1
Book cover of A Morbid Taste for Bones
Book cover of Louisiana Longshot

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