Thriller

Addictive Standalone Thriller Series

Someone Is Watching Me (Addictive Standalone Thrillers Book 1)

Someone Is Watching Me (Addictive Standalone Thrillers Book 1) FREE by Kosh Ram: A young man becomes a tenure teacher on the day he turns twenty-six years old. He celebrates with his coworkers and feels like he is on top of the world. Suddenly, lots of strange things happen and he realizes that someone is stalking him! He has no idea who that person is, but once he asks his peers for help, he comes closer to finding out who his nemesis is.

This book is Free on June 1, 2026

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Other Books in the series

Who Am I?: An Addictive Fast Paced Novella (Addictive Standalone Thrillers Book 2) KINDLE
0.99
The Invisible Friend: A Completely Addictive Fast-Paced Thriller (Addictive Standalone Thrillers Book 3) KINDLE
0.99
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Deadly Donations, Relentless Hunts, and Fractured Loyalties: Free Mystery / Thriller eBooks

Operation Tropical Affair (Poppy McVie Mysteries Book 1)

Operation Tropical Affair (Poppy McVie Mysteries Book 1) FREE by Kimberli A. Bindschatel: Poppy has a plan… it may get her killed. Is it worth the risk? As a Federal Wildlife Agent, Poppy’s passionate about her job. She's got her badge, and now she wants to earn their respect. But all they see is 5’ 2” with perky assets. They’ve underestimated her. That’s her best weapon. There’s just one problem. Her annoyingly attractive partner, a former Navy SEAL, and Poppy don’t see eye to eye.

This book is Free on June 1, 2026

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Burden of Poof (Bonnie & Clyde Mysteries Book 1)

Burden of Poof (Bonnie & Clyde Mysteries Book 1) FREE by Julie Anne Lindsey: When a body turns up in a pile of donations meant for Bonnie's shop, the town’s handsome new detective pins her to the top of his suspect list. Can Bonnie & her kitty companion, Clyde, clear her name and find the true killer before she becomes the next victim?

This book is Free on June 1, 2026

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The Logic of Madness (Inspector Pantaleo Mystery Series Book 1)

The Logic of Madness (Inspector Pantaleo Mystery Series Book 1) FREE by Claudio Calabrese: In freezing Bari, a woman is found mutilated—her fingers severed, only the wedding ring finger spared. The killer leaves a logic born of pure madness. Enter Inspector Pantaleo: six-foot-three, cynic, fueled by amaretto tobacco. As bodies pile up, he uncovers a labyrinth of bloodshed leading to a forty-year-old secret buried in Genova. FREE today.

This book is Free on June 1, 2026

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If I Lose Myself (Trespassing Book 10)

If I Lose Myself (Trespassing Book 10) FREE by P.W. Creighton: Logan is aware of the statistics—the first forty-eight hours after a kidnapping are critical for finding the missing person. After a night of celebrating his birthday, two of his friends are missing, and another is hospitalized in critical condition. Logan and his friends realize that they may be the only ones who can bring them home.

This book is Free on June 1, 2026

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Formula Escapes, Covert Pursuits, and Family Intrigue: Free Mystery / Thriller eBooks

Uncanny Harvest (Moon Garden Mysteries Book 2)

Uncanny Harvest (Moon Garden Mysteries Book 2) FREE by J. R. Pearse Nelson: The Moon Garden Mysteries paranormal cozy mystery series - a magical blend of paranormal women’s fiction and cozy mystery for those who believe forty marks a new beginning, cats can talk (and you’d better listen), and when you’re guarding a fae portal, chocolate is a girl’s best friend.

This book is Free on May 31, 2026

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The Trouble with Speed (A Hale Mary Mystery)

The Trouble with Speed (A Hale Mary Mystery) FREE by Katrina Kyle: Managing a Formula One driver in Monaco is like herding cats at 200 mph. But when a French socialite vanishes and Hale's client takes the blame, she has one Grand Prix weekend to find the missing woman, clear his name, and keep her career from crashing. In Monte Carlo, someone's willing to kill to make sure she fails.

This book is Free on May 31, 2026

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The Arx

The Arx FREE by Jay Allan Storey: A year ago, after a mental breakdown, ex-homicide detective Frank Langer was placed on medical leave from the squad he was once hand-picked to lead. Now he spends his days drinking and chain-smoking, and his nights waking up screaming from a horrific recurring nightmare. Then one day, by chance, he stumbles on a conspiracy to kidnap children.

This book is Free on May 31, 2026

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Kaleidoscope of Secrets

Kaleidoscope of Secrets FREE by Sandy Clements: Two powerful women. One deadly secret. One has earned her influence—one will kill to keep hers. Who will survive? Readers are raving about Kaleidoscope of Secrets! Dive into this gripping family thriller today.

This book is Free on May 31, 2026

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Shadow Operative (Adam Knight Thrillers Book 1)

Shadow Operative (Adam Knight Thrillers Book 1) FREE by Sam Cogley: A murdered scientist. A killer returned from the dead. A covert operative caught in a deadly conspiracy. Adam Knight races across the globe to stop a secret weapons program before it changes the world forever. For fans of Tom Clancy, Lee Child, Robert Ludlum, and Vince Flynn.

This book is Free on May 31, 2026

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Reluctant Assassins, Mountain Dangers, and Unwritten Crimes: Free Mystery / Thriller eBooks

Got Trouble

Got Trouble FREE by Dave Dobson: Stuck as a night manager at a gas station Glynnis Cary's life is a lot like the hot dogs rolling endlessly in their grease, going nowhere and becoming less appetizing by the minute. But that's all about to change. Her son gets in serious trouble, her husband makes a terrible mistake, and suddenly she's on the run from foreign agents and the law.

This book is Free on May 30, 2026

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Kili'ing Time

Kili'ing Time FREE by Linda Riedle: Join Katie and Brad, a couple in their sixties, on a nine-day trek to the summit of Mount Kilimanjaro, as a bucket-list dream turns deadly with secrets and murder. Experience the physical and emotional highs and lows, from the bustling Lemosho Gate to the triumphant - or tragic - reach for Uhuru Peak, every step laced with suspense.

This book is Free on May 30, 2026

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Feudland: Power, Honor, and Death in the Hills

Feudland: Power, Honor, and Death in the Hills FREE by Ronnie Deaton: These are the unvarnished stories of Breathitt County, Kentucky, from 1870 to 1915, known as “Bloody Breathitt.” Feuds and killings wove a tapestry of human conflict, resilience, and redemption. Reflect on how the echoes of history shaped the events and the fierce individualism of a resilient mountain society.

This book is Free on May 30, 2026

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The Road To Eden Is Overgrown (Leveller Book 1)

The Road To Eden Is Overgrown (Leveller Book 1) FREE by Dan Wheatcroft: British detective Thurstan Baddeley is ensnared in a high-stakes game stretching beyond organized crime as he deals with the arrival of an assassin who’s reluctant to leave. Journey through layers of deception amidst a struggle for redemption where trust is fragile, and the path to justice is anything but clear.

This book is Free on May 30, 2026

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The Emerald Ring

The Emerald Ring FREE by James Massaro: A wealthy NYC director thinks he's written the perfect crime when he hires his mistress to eliminate his wife. But in a game of love and murder the script never goes as planned.

This book is Free on May 30, 2026

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The Sloane Merritt Thriller Series

Dead Account (Sloane Merritt Mystery Thriller Series Book 1)

Dead Account (Sloane Merritt Mystery Thriller Series Book 1) FREE by M.K. Quinn: ★★★★★ “One of the most engaging mysteries I’ve read.” Atlanta PI Sloane Merritt specializes in missing persons cases—because twenty years ago, her best friend Eden Pike vanished without a trace. Each gripping investigation brings Sloane closer to the truth. Clean, addictive, fast-paced thrillers packed with twists and unforgettable mysteries.

This book is Free on May 29, 2026

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Other Books in the series

Vanishing Act: A Sloane Merritt Missing Persons Thriller Book 2 (Sloane Merritt Mystery Thriller Series) KINDLE
0.99
Trail of Silence: A Sloane Merritt Missing Persons Thriller Book 3 (Sloane Merritt Mystery Thriller Series) KINDLE
3.99
Last Call: A Sloane Merritt Missing Persons Thriller Book 4 (Sloane Merritt Mystery Thriller Series) KINDLE
3.99
Final Entry: A Sloane Merritt Missing Persons Thriller Book 5 (Sloane Merritt Mystery Thriller Series) KINDLE
3.99
Dual Motive : A Sloane Merritt Missing Persons Thriller (Sloane Merritt Mystery Thriller Series Book 6) KINDLE
3.99
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Ancient Evils, Elusive Rulers, and Twisted Fates: Free Mystery / Thriller eBooks

Framed (Jax Diamond Mysteries Book 2)

Framed (Jax Diamond Mysteries Book 2) FREE by Gail Meath: It's a deadly game of who’s who, and who isn’t. When Jax Diamond and his best friend, a cop, are framed for murder, Broadway star Laura Graystone and faithful canine companion, Ace, go undercover to save their hides. "It has more twists and turns than Lombard Street in San Francisco!" 1920s JAX DIAMOND MYSTERIES (series or standalone).

This book is Free on May 29, 2026

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Sweet Tea and Spirits (Southern Ghost Hunter Mysteries Book 5)

Sweet Tea and Spirits (Southern Ghost Hunter Mysteries Book 5) FREE by Angie Fox: Ghost hunter Verity Long goes undercover to investigate strange happenings at an elite Southern social club. And when she stumbles upon a fresh body, she'll need the help of the ghosts as well as a handsome deputy sheriff to solve the crime. “Fabulously Fun” –The Chicago Tribune

This book is Free on May 29, 2026

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Out of Time (The Dream Traveler Book 1)

Out of Time (The Dream Traveler Book 1) FREE by Ernesto H Lee: What if solving a murder meant stepping directly into the past? DS Sean McMillan has an extraordinary gift that lets him travel through dreams and relive moments long gone. But every journey drags him deeper into murder, danger, and buried secrets, where one wrong move could change everything, or cost him his life.

This book is Free on May 29, 2026

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The Good Club: Five Men. One World. Total Control.

The Good Club: Five Men. One World. Total Control. FREE by J.T. Kuendig: What if the world’s most powerful men had already won? In The Good Club, five hidden rulers control governments, money, medicine, and humanity itself until one secret threatens to expose their terrifying plan. Dive into a chilling techno-political thriller of global conspiracy, surveillance, and rebellion before freedom disappears. Read it today.

This book is Free on May 29, 2026

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The Rune Harmonic (The Lisa Emmer Series Book 4)

The Rune Harmonic (The Lisa Emmer Series Book 4) FREE by Rob Swigart: Papyrologist and modern-day manifestation of the Delphic oracle, Lisa Emmer, and her 10-year-old protege, Felix, race to save the world from a rogue archbishop at the Vatican who is intent on overturning the world order and wreaking havoc with the balance of Nature, in an unholy attempt to bring people back to the Church.

This book is Free on May 29, 2026

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Dark Fallen Days

Dark Fallen Days FREE by Nicholas Peluso: A God-fearing police officer has his faith put to the test when evil settles into his small town. Michael is a teenage pariah hellbent on violence. Billy is a young man with perverse visions of starting a cult made up of blood-drinking criminals. Time to stop them is running out. The dark, fallen days are coming.

This book is Free on May 29, 2026

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Sketches from the Periphery

Sketches from the Periphery FREE by MP Summers: In Sketches from the Periphery, Alex Barr confronts love, betrayal, and the psychological toll of Darfur’s civil conflict. This literary masterpiece weaves historical richness with tender romance, exploring resilience and humanity’s depths. A gripping, soul-stirring journey through a war-torn land, it unveils the enduring power of hope.

This book is Free on May 29, 2026

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Keys of Life: Uriel's Justice

Keys of Life: Uriel's Justice FREE by Carolyn Schield and Tom Vorbeck: A London Museum tour guide points to an angel with no halo in Da Vinci’s painting, Virgin of the Rocks, whose name is Uriel. Uriel fights for justice against an ancient evil dating back to the days of Noah. Keys of Life takes you through time and to a present-day war that continues between good and evil.

This book is Free on May 29, 2026

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The Townsend & Gray Thriller Series

Missing in Shadows (Townsend & Gray Book 1)

Missing in Shadows (Townsend & Gray Book 1) FREE by Tanya Nellestein: The storm. The headlights. The scream swallowed by the dark. When ex-cop Ash Gray arrives in Sergis, Connecticut, she's looking for quiet. What she finds is anything but. Gripping thriller fiction for fans of Lisa Gardner and Melinda Leigh. Townsend & Gray, Book 1.

This book is Free on May 28, 2026

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Other Books in the series

Murdered in Shadows: A Romantic Suspense Crime Series (Townsend & Gray Book 2) KINDLE
4.99
Emerging in Shadows: A Romantic Suspense Crime Series (Townsend & Gray Book 3) KINDLE
4.99
Swallowed in Shadows: A Romantic Suspense Thriller of Secrets, Corruption, and Betrayal (Townsend & Gray Book 4) KINDLE
4.99
Forever in Shadows: A Romantic Suspense Crime Series (Townsend & Gray Book 5) KINDLE
4.99
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Town Secrets, Chilling Hunts, and Blackmail Games: Free Mystery / Thriller eBooks

Murder on Honky-Tonk Row (Ghost & Camper Kooky Mystery Book 2)

Murder on Honky-Tonk Row (Ghost & Camper Kooky Mystery Book 2) FREE by Rita Moreau: Mabel pulls her haunted vintage camper into a Nashville campground, expecting Irma to join her at the Grand Ole Opry. Instead, they’re startled to find two lost spirits trapped in a honky-tonk for the past twenty years — victims of a double homicide. Helping the trapped spirits could put Mabel in serious trouble, in the living world and beyond.

This book is Free on May 28, 2026

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Mystic Brews & Murder (Magical Teashop Mysteries Book 1)

Mystic Brews & Murder (Magical Teashop Mysteries Book 1) FREE by Karen McSpade: A midlife witch. A magical teashop. A cat with opinions. When a murder mystery unravels dark town secrets in her new home, Samara Snow must awaken her magic and join forces with her sassy familiar to solve the mystery and clear her name. But who can she trust? Even the charming fisherman she's starting to fall for seems to be hiding something...

This book is Free on May 28, 2026

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Wildcard (Jax Diamond Mysteries Book 8)

Wildcard (Jax Diamond Mysteries Book 8) FREE by Gail Meath: "What fun! One of the most disrupted honeymoons in the history of fiction!" Welcome to Niagara Falls, 1923! Jax Diamond, his bride, Laura, and canine companion Ace, have twenty-four hours to stop a killer and clear their best friend of murder. Multi-Award-Winning JAX DIAMOND MYSTERIES. (Series or standalone).

This book is Free on May 28, 2026

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The Friday Edition (A Samantha Church Mystery Book 1)

The Friday Edition (A Samantha Church Mystery Book 1) FREE by Betta Ferrendelli: A district attorney’s suspicious death leads her reporter sister, Samantha Church, on a dangerous investigation into drug smuggling, corruption, addiction, and family redemption.

This book is Free on May 28, 2026

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Chasing Money (Marty Schott and Bo Bishop Book 1)

Chasing Money (Marty Schott and Bo Bishop Book 1) FREE by Michael Balter: Marty and Bo were just trying to keep their struggling business alive when they met Nico Scava. He had money, connections in the art world, and a few too many secrets. Now Nico’s dead—and if the two friends don’t find a mysterious missing painting and $10 million, they’ll be dead too. Winner of 5 gold medals for crime fiction—start the series now!

This book is Free on May 28, 2026

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Slipper Girl (The Neon Diaries Book 2)

Slipper Girl (The Neon Diaries Book 2) FREE by Adele Royce: When Skylar Van Ness’s past resurfaces, her polished Vegas life shatters. Blackmail, buried crimes, and a dangerous mother pull her into a high-stakes game of power, loyalty, and survival—where one secret could destroy everything she’s built.

This book is Free on May 28, 2026

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Into the Black Spruce

Into the Black Spruce FREE by Will Steckman: When Jack moves to the Alaskan countryside to work as a park ranger, he hopes to leave his problems behind. But he quickly finds that his past cannot stay buried. When a mission to rescue a lost hiker goes wrong, he and his co-worker find themselves stranded in the Alaskan backcountry, chased by something more dangerous than the brutal wilderness.

This book is Free on May 28, 2026

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