Mystery

Courtroom Crossfire, Vanished Years, and Microbe Threats: Free Mystery / Thriller eBooks

The Grelnocks

The Grelnocks FREE by Jonathan Maas and Weston Scott: A police contractor called in to resolve a penthouse standoff. A warning from the man inside that some things are not meant to be perceived by humans. A mystery with a paranormal edge - read The Grelnocks free May 14 - 18, 2026!

This book is Free on May 16, 2026

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Red Barn (Ruth Baker Thrillers Book 1)

Red Barn (Ruth Baker Thrillers Book 1) FREE by Sam Baron: 2026 FULLY EXPANDED AND REVISED EDITION. Some secrets refuse to stay buried... Texas Ranger Ruth Baker faces her darkest case yet—one that strikes at the heart of her own family. Red Barn is a high-stakes mystery thriller packed with explosive action, psychological warfare, and the trademark emotional punch Baker & Tate fans have come to love.

This book is Free on May 16, 2026

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Confessions of an Accidental Lawyer

Confessions of an Accidental Lawyer FREE by Michael Stockham: Legal Thriller! A young lawyer struggles to ensure that his client, his family, and his integrity all survive. Michael Stockham, a litigation attorney, takes us on a page-turning journey. If you like legal thrillers, you don't want to miss this! American Fiction Award winner. "Exceptionally well-written." - Literary Titan

This book is Free on May 16, 2026

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The Ashes of Eden

The Ashes of Eden FREE by Andrew Parker: Daniel Eden wakes in a hospital bed with no memory of the past 8 years. His partner, Ellie, reveals their 5-year-old daughter, Kacey, is missing, believed to have been taken by a notorious serial killer. But as Daniel uncovers the truth about the missing years, the evidence points toward one horrifying possibility: the monster he’s hunting may have been staring back at him in the mirror all along.

This book is Free on May 16, 2026

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Defense Mechanisms

Defense Mechanisms FREE by Mo Kramer: At an international medical summit, infectious disease specialist Noah Winter meets Dr. Balodis, a scientist who claims to have created microbes that end aging and cure deadly diseases. But Balodis has a darker plan: redesigning humanity itself. Now Noah must stop a global catastrophe before the cure becomes humanity’s extinction.

This book is Free on May 16, 2026

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Small-Town Disappearances, Gritty Battles, and Apocalyptic Clues: Free Mystery / Thriller eBooks

A Little Bit Witchy (A Riddler's Edge Cozy Mystery Book 1)

A Little Bit Witchy (A Riddler's Edge Cozy Mystery Book 1) FREE by A.A. Albright: Join newspaper reporter Aisling Smith as she moves to the small Irish town of Riddler's Edge - a town filled with magic, mystery, and too many murders. With the help of a handsome but grumpy detective and a host of supernatural friends, she discovers - is she a little bit witchy?

This book is Free on May 15, 2026

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Moon Detective: The Jacques Dubois Mysteries (The Outer Earth Mysteries Book 1)

Moon Detective: The Jacques Dubois Mysteries (The Outer Earth Mysteries Book 1) FREE by J.W. Holmes: On Alpha Colony, the premier human settlement on the Moon, follow Detective Jacques Dubois as he and his new partner Cornelia "Corny" Stevenson do their best to keep the colony and its residents safe in these seven cosy adventures filled with action and mystery!

This book is Free on May 15, 2026

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Trail Gone Dark (K-9 Search & Rescue Mysteries Book 1)

Trail Gone Dark (K-9 Search & Rescue Mysteries Book 1) FREE by Sophie Lyon: If you love small-town secrets, loyal dogs, and twists you won't see coming, this is your next binge. Gemma thought Elk Creek would be her fresh start. But when she and K-9 partner Kira find a body, they uncover a decades-old disappearance and a killer hiding in plain sight. Book 1 of K-9 Search & Rescue Mysteries!

This book is Free on May 15, 2026

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The Doomsday Butcher (Cole Chambers FBI Profiler Thrillers Book 1)

The Doomsday Butcher (Cole Chambers FBI Profiler Thrillers Book 1) FREE by S.E. Stitcher: New York, 1993: Rookie FBI agent Cole Chambers must stop a madman who’s turned an amusement park into a ghastly scene from the Book of Revelation. Can he decode cryptic clues linked to apocalyptic prophecies and stop a serial killer bent on unleashing Armageddon? Dive into a chilling race against time with The Doomsday Butcher.

This book is Free on May 15, 2026

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Binding Coil (The Helix Project Book 2)

Binding Coil (The Helix Project Book 2) FREE by J.L. Calder: Mike Green thought he’d built a new life free from covert politics, but when a cartel threatens LA, his new life collides with a mission under McCollister’s command. Between the black ops engineered in Washington and the gang war raging on the gritty streets of Los Angeles, the real battle becomes protecting life from a system designed to erase it.

This book is Free on May 15, 2026

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The Immortality Virus: A Miracle Worth Killing For

The Immortality Virus: A Miracle Worth Killing For FREE by Tom Draycott: Dr. Maya Carter didn't mean to cure death. She just wanted to save a young boy's life.

This book is Free on May 15, 2026

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Escape From Batechu Island

Escape From Batechu Island FREE by T.A. Shelano: What are you capable of under pressure? Who can you trust in a battle for survival? In this fast-paced, high-stakes, heart-stopping thriller, we follow a group of unruly teens pushed to the limit by a deadly dystopian conspiracy as they tackle powerful enemies and each other. Can they avoid a terrifying fate? Will they Escape From Batechu Island?

This book is Free on May 15, 2026

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Queen of Spades Thrillers Box Set (Books 1-6)

Queen of Spades Thrillers Box Set (Books 1-6) FREE by Kristi Belcamino: Mafia boss Eva's world shattered when rival Sicilian families betrayed her. With a bounty on her head, she fled to America and created a new life. Then they found her. And destroyed everything she loved. Now she has only one thing left to live for: Making them pay.

This book is Free on May 15, 2026

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Snowy Discoveries, Vanishing Roommates, and Shaken Towns: Free Mystery / Thriller eBooks

The Village of Slightly Magical People

The Village of Slightly Magical People FREE by John McDonnell: Ivy Hale, a skeptical London journalist arrives in the quirky village of Whimble-in-the-Vale expecting nonsense—not magic, romance, and a goose with attitude. Filled with cozy romance, whimsical villagers, soft enchantment, and small-town charm, this heartwarming fantasy is perfect for fans of Legends & Lattes.

This book is Free on May 14, 2026

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Unwelcome Matt

Unwelcome Matt FREE by Dave Dobson: Amy Galanis' quiet life as a librarian takes a chaotic turn when she comes home to find a dead stranger in her living room and her slob of a housemate, Matt, vanished without a trace. As the police investigate, shadowy figures appear, forcing Amy to confront a dangerous question: What was Matt up to, and why are so many people out to get her now?

This book is Free on May 14, 2026

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The Hills Be Shaken

The Hills Be Shaken FREE by Michael Stewart: Mose Haley is just an engineer, but after a dam collapses and devastates a small Kansas town, he is recruited by the FBI to find out what really happened. Critics call it SEVEN meets MACGYVER.

This book is Free on May 14, 2026

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The Tenth Trail Mark (The Tenth Series)

The Tenth Trail Mark (The Tenth Series) FREE by Joe Looby: 1945. Italy is a fortress of ice. In the dead of night, Johnnie Grey leads ski troops up an unscalable cliff to break the Gothic Line. One slip means oblivion; one victory could help liberate Italy. Inspired by true events.

This book is Free on May 14, 2026

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Parallax: What Happens When Machines Start Betting On War?

Parallax: What Happens When Machines Start Betting On War? FREE by scm7k: What happens when AI agents create a feedback loop between prediction and reality? Five people have five days to answer that question as an autonomous trading system drives markets, moves intelligence, and blurs the line between forecasting a war and causing one. The answer isn't a conspiracy. It's worse.

This book is Free on May 14, 2026

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Grayduck

Grayduck FREE by Scott R Welvaert: Grayduck is a gritty, unique, traumatizing, genre-mashup of Goodfellas and Stand By Me that leaves your head spinning, your heart aching, and your hands ready to punch my lights out.

This book is Free on May 14, 2026

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The Estate Sale Cozy Mystery Series

Saltwater Secrets (Estate Sale Mysteries Book 1)

Saltwater Secrets (Estate Sale Mysteries Book 1) FREE by Wanda Fellows: Estate appraiser Callie Vance has walked through hundreds of estates. She knows the difference between clutter and secrets. At Crest Point Manor—a three-story saltbox perched on a bluff above Breaker Cove—the secrets are the kind people drown for.

This book is Free on May 13, 2026

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Other Books in the series

Peak Performance (Estate Sale Mysteries Book 2) KINDLE
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The Tropical Trace (Estate Sale Mysteries Book 3) KINDLE
0.99
Horseshoes and Homicide (Estate Sale Mysteries Book 4) KINDLE
0.99
The Gilded Grudge (Estate Sale Mysteries Book 5) KINDLE
0.99
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Kidnapped Daughters, Memory Theft, and Desert Pursuits: Free Mystery / Thriller eBooks

Bribing Saint Anthony (A Mary Catherine Mahoney Mystery Book 1)

Bribing Saint Anthony (A Mary Catherine Mahoney Mystery Book 1) FREE by Rita Moreau: A missing husband. Plot to blow up a national treasure. Fortune-telling aunts. As MC follows the paper trail, a missing person’s case transforms into something even worse. Will her fortune-telling aunts be able to help MC before her old nemesis takes out a national treasure? Solving mysteries is a Greek family affair. Hope you like kooky and fun.

This book is Free on May 13, 2026

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Spellbound (Spellbound Book 1)

Spellbound (Spellbound Book 1) FREE by Kathryn James: One botched spell turns Ciderbrooke upside down: every man falls for Eliza—except the one she wants. Between laugh-out-loud chaos, stubborn romance, and a very dark foe, this witch must untangle magic before it ruins everything—including her heart.

This book is Free on May 13, 2026

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The Holy Grail Code

The Holy Grail Code FREE by Ehud Peled: When a freak plane crash leaves five people dead without explanation, veteran investigative journalist Ilana Perez jumps on the case. Unknowingly, she dives headfirst into a rabbit hole of deception and conspiracy, going back over two thousand years.

This book is Free on May 13, 2026

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Deuce Mora Mystery Series (Vol. 1-3) (The Deuce Mora Series Book 6)

Deuce Mora Mystery Series (Vol. 1-3) (The Deuce Mora Series Book 6) FREE by Jean Heller: Deuce Mora’s one tough cookie–-a female sleuth with a conscience and an attitude–fiery, tough, athletic, a dirty fighter when she has to be. The scrappy lead columnist for the Chicago Journal normally writes about politics, but Deuce’s search for a good story brings her face-to-face with more trouble than she was really looking for.

This book is Free on May 13, 2026

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Elena Jones: The Mojave Ghost

Elena Jones: The Mojave Ghost FREE by Ray Colton: She saw too much. Now, analyst Elena Jones is the prey. In a town controlled by powerful men, the truth is a death sentence. Hunted through the scorched Mojave desert by the very people sworn to protect her, Elena must fight to survive. A high-stakes thriller where the hunter becomes the hunted.

This book is Free on May 13, 2026

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Bigger Than Brooklyn

Bigger Than Brooklyn FREE by Kris Whelan: Brooklyn, 1972. Bennie Esposito sweeps hair in his father's barbershop, his baseball dreams long dead. When he wins the underground lottery, he thinks his luck has finally turned. But collecting the payout puts him in the crosshairs of a vicious mob enforcer with a long memory, dirty cops working a murder, and a Vietnam vet with dangerous secrets.

This book is Free on May 13, 2026

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He Made Me Forget

He Made Me Forget FREE by Laura Voss: Every morning, Daniel makes Claire's coffee. Every morning, she forgets a little more. She thought she was losing her mind. She was wrong. He was taking her memories — one cup at a time. A cold, twisty psychological thriller you won't be able to put down.

This book is Free on May 13, 2026

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The Leashes and Lies Cozy Mystery Series

Agility and Alibis (The Leashes and Lies Mysteries Book 1)

Agility and Alibis (The Leashes and Lies Mysteries Book 1) FREE by Hailey Hartley: When a beloved dog breeder's suspicious death brings her championship border collie Dash nose-to-nose with a killer, Riley Harper can't let it go. In Pinewood Springs, where gossip travels fast and secrets run deep, Riley uncovers embezzlement, professional grudges, and a killer who's noticed her snooping — and isn't happy about it.

This book is Free on May 12, 2026

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Other Books in the series

Muzzles and Motives: A Leashes and Lies Mystery (The Leashes and Lies Mysteries Book 2) KINDLE
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Trails and Betrayals: A Leashes and Lies Mystery (The Leashes and Lies Mysteries Book 3) KINDLE
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Buried Truths: A Leashes and Lies Mystery (The Leashes and Lies Mysteries Book 4) KINDLE
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Secrets and Scents: A Leashes and Lies Mystery (The Leashes and Lies Mysteries Book 5) KINDLE
0.99
Comfort and Conspiracies: A Leashes and Lies Mystery (The Leashes and Lies Mysteries Book 6) KINDLE
0.99
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River Walkers, Cryptic Messages, and Shimmering Spectres: Free Mystery / Thriller eBooks

Shadows at Greyfell (The Moonhaven Mysteries Book 7)

Shadows at Greyfell (The Moonhaven Mysteries Book 7) FREE by K.S. Van: Ezra tracked the signal for nine days before saying a word. Moss faced west-northwest for forty minutes — then turned to look directly at Sam. The granite beneath Greyfell doesn't pulse. It holds. Sam has closed six nodes. This one is waiting for her specifically. Shadows at Greyfell — Moonhaven Mysteries, Book 7.

This book is Free on May 12, 2026

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Murder at Maisie's (Silver Pines Mysteries Book 1)

Murder at Maisie's (Silver Pines Mysteries Book 1) FREE by Lyla Blue: Clare Garner returns to Silver Pines for a fresh start, restoring antiques, reconnecting with old friends, and settling back into small-town life with her rescue pup, Lucy. But when a body turns up and both her high school sweetheart and her charming college ex land on the suspect list, Clare’s quiet homecoming turns into something more dangerous.

This book is Free on May 12, 2026

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Mozzarella Murder (A Rolling Dough Pizza Truck Mystery Book 1)

Mozzarella Murder (A Rolling Dough Pizza Truck Mystery Book 1) FREE by R.M. Murphy: When a copyeditor trades his red pen for a rolling pizza kitchen, he embarks on a tantalizing adventure, crafting his artisan pies in a charming Pennsylvania town… But his hopes for a peaceful existence take an abrupt detour when a shocking discovery leaves his dear friend, a local cheesemonger, as the prime suspect in a murder investigation.

This book is Free on May 12, 2026

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The Ghost in Roomette Four (Jill McLeod California Zephyr Series Book 3)

The Ghost in Roomette Four (Jill McLeod California Zephyr Series Book 3) FREE by Janet Dawson: Zephyrette Jill McLeod tells herself that shimmering light in the Pullman car couldn’t possibly be a ghost. But a porter tells her he too has seen the spectre. Could this be the ghost of the dead man Jill found two months ago, in roomette four?

This book is Free on May 12, 2026

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Everyone Burns (Time, Blood and Karma Book 1)

Everyone Burns (Time, Blood and Karma Book 1) FREE by John Dolan: When the burned bodies of two Europeans are found on the Thai island of Samui, unorthodox PI David Braddock is drawn into an unofficial investigation by the island's sidelined police chief—while hiding an affair with the same chief’s wife. Darkly funny and razor-sharp, 'Everyone Burns' is a noir thriller soaked in corruption, desire and danger.

This book is Free on May 12, 2026

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Carved In Stone

Carved In Stone FREE by S A Morris: When a storm rips open a historic cemetery in Vermont's Green Mountains, game warden Nate Briggs discovers a body. Right before he was killed, the victim sent a cryptic text with a photo of an ancient headstone. To Nate, the message seems irrelevant. Until it becomes the key. In Parker's Gore, questions disappear. So do the people who ask them.

This book is Free on May 12, 2026

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Skeleton River

Skeleton River FREE by Mark B. Dawkins: Remy Michaels buried his wife in D.C. and fled to the Appalachians for quiet—a place where the past couldn’t follow. But when she appears at his cabin, alive and unchanged, the ground beneath him begins to shift. The river draws strangers who kneel in the fog. The town watches too closely.

This book is Free on May 12, 2026

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Chronicle of a Dream

Chronicle of a Dream FREE by Roger Teichmann: It is 1972. Charlie Shawe, 18 years old and restless, journeys from England to Rome, where he meets his enigmatic older cousin Rosa, a member of the revolutionary group Lotta Continua. In the '20s, Rosa's father had been a Fascist operating in Sicily. The passions and violence of an earlier generation repeat themselves with devastating consequences.

This book is Free on May 12, 2026

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Cloner (The Humanity Series Book 1)

Cloner (The Humanity Series Book 1) FREE by Richard Warburg and Tessa Warburg: Some children clone themselves. The copies die in hours and someone is harvesting their organs. Lisa can save them. Now she races to help other mothers. Who owns a copy of a child? Humanity Series Book 1. Free today. Book 2 OPTIMIZED: AI cures disease but also kills. Book 3 A WOMAN'S WORLD for preorder, publishes May 19 at $0.99, one day only.

This book is Free on May 12, 2026

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Other Books in the series

A WOMAN'S WORLD: HUMANITY RESTORED (THE HUMANITY SERIES) KINDLE
0.99
OPTIMIZED: HUMANITY (THE HUMANITY SERIES) KINDLE
5.99
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The Glamping & Gunner Cozy Mystery Series

Lattes and Larceny at Birch Haven (Glamping & Gunner Mystery Series Book 1)

Lattes and Larceny at Birch Haven (Glamping & Gunner Mystery Series Book 1) FREE by Rachel Darrishaw: Travel writer Danell White and her opinionated pug, Shotgun, arrive at Birch Haven Glampground in New Hampshire's White Mountains for what should be a simple autumn review, but then the resort's beloved barista turns up dead.

This book is Free on May 11, 2026

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Other Books in the series

A Cliffside Corpse at Granite Peak: A Travel Camping Pug Dog Cozy Mystery (Glamping & Gunner Mystery Series Book 2) KINDLE
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Death by S'mores: A Travel Camping Pug Dog Cozy Mystery (Glamping & Gunner Mystery Series Book 3) KINDLE
0.99
Moonshine and Murder at Blue Ridge: A Travel Camping Pug Dog Cozy Mystery (Glamping & Gunner Mystery Series Book 4) KINDLE
0.99
Tides and Treachery at Palmetto Shores: A Travel Camping Pug Dog Cozy Mystery (Glamping & Gunner Mystery Series Book 5) KINDLE
0.99
Vines and Vengeance at Harvest Hollow: A Travel Camping Pug Dog Cozy Mystery (Glamping & Gunner Mystery Series Book 6) KINDLE
0.99
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Small-Town Shootings, Deadly Secrets, and Shocking Sabotage: Free Mystery / Thriller eBooks

Bottles, Blends, and Beginnings (Through the Lens Cozy Mysteries Book 1)

Bottles, Blends, and Beginnings (Through the Lens Cozy Mysteries Book 1) FREE by Lyla Blue: A photo shoot, an adorable doodle, and intrigue galore! In Cedarbrook, North Carolina, food stylist Cora Hartley’s first big job at Bright Nest Studios turns deadly when a tragedy occurs on set. As suspicion spreads, Cora spots clues others miss. With secrets mounting and danger rising, she must uncover the truth before the killer strikes again.

This book is Free on May 11, 2026

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Moonlight Murder Mystery Club (A Bitter Taste Book 1)

Moonlight Murder Mystery Club (A Bitter Taste Book 1) FREE by Blake Rivers: Some mornings start with coffee. Sage Holloway's started with a corpse. ☕ Baker-sleuth Sage and her mysterious cat Shadow dig into dangerous secrets in coastal Crescent Harbor. Complete 5-book series available now. ALWAYS FREE! 🐱🌙

This book is Free on May 11, 2026

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Breakdown of Integrity (Mike Stanhope Mysteries Book 8)

Breakdown of Integrity (Mike Stanhope Mysteries Book 8) FREE by Peter Rowlands: Electric vehicles are breaking down. Some are catching fire. The makers can’t explain why. Downbeat journalist Mike Stanhope suspects a conspiracy, but struggles to unravel it. The irrepressible Trish wants to get involved, but Mike is conflicted. Does he want her help or her affection? Pacy, topical, wry, engrossing… and unnervingly convincing.

This book is Free on May 11, 2026

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Never Let You Go (Trespassing Book 7)

Never Let You Go (Trespassing Book 7) FREE by P.W. Creighton: Logan is now starting to realize what he is up against. He is facing some very powerful and wealthy opponents, and even the Sheriff's Department is complicit. After the drive-by shooting deaths of his friends, Logan and his allies have decided to take matters into their own hands. They don't want justice for their lost friends, they want payback.

This book is Free on May 11, 2026

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Midnight's Shadow (The Midnight Series Book 1)

Midnight's Shadow (The Midnight Series Book 1) FREE by Tom Kane: England, 1939 and Europe is sliding towards war. Jessie Fordham’s final term at Cambridge is shattered when her spymaster father sends her on a secret mission to France. On the ferry crossing, a fellow courier is murdered. Now Jessie must travel the path of espionage, and treachery, and survive long enough to learn who she can trust.

This book is Free on May 11, 2026

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