Thriller

Cold War Intrigue, Poker Games, and Vanishing Partners: Free Mystery / Thriller eBooks

Jill McLeod California Zephyr Series Box Set (Books 1- 4)

Jill McLeod California Zephyr Series Box Set (Books 1- 4) FREE by Janet Dawson: All four Jill Mcleod California Zephyr Mysteries in a box set. 1: A Cold-blooded Killer. A Cold, Remote Canyon. 2: A Murdered Passenger. Who Gets The Dead Man’s Hand? A High-stakes Poker Game. 3: Death Has A Seat At The Table. 4: A Ghost Aboard The California Zephyr? Lights, Camera, Action—murder.

This book is Free on April 12, 2026

Everywhere She Ran (Leyla James Mysteries Book 5)

Everywhere She Ran (Leyla James Mysteries Book 5) FREE by A. Eveline: Leyla James wakes up in a hospital after a brutal attack on a running trail, a victim herself, and entangled in a mysterious murder. Fearing for her safety with a sense that a predator is watching, she leaves town just as her partner urges. Then he disappears.

This book is Free on April 12, 2026

The Sacrificial Daughter

The Sacrificial Daughter FREE by Janet Dawson: When nerves fray, Kay Dexter helps adult children look after elderly parents. Now she’s dealing with an elderly client’s daughters. The sisters are still fighting over past wrongs. They can’t agree on what’s best for their mother, or what to do with her valuable estate. Then murder enters the picture. If Kay's not careful, she could wind up dead.

This book is Free on April 12, 2026

Iron Refuge

Iron Refuge FREE by Colton Lively: When an EMP wipes out power, Renee must protect her daughter and their wildlife preserve from strangers, unrest, and the growing fear that the collapse has begun. Survival means guarding family, land, and trust before the quiet countryside becomes their prison.

This book is Free on April 12, 2026

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Murderous Retreats, Legendary Killers, and Dreamlike Danger: Free Mystery / Thriller eBooks

Mind Your Own Murder (Persephone Pringle Cozy Mysteries Book 1)

Mind Your Own Murder (Persephone Pringle Cozy Mysteries Book 1) FREE by Patti Larsen: Single, sassy, and prone to finding dead bodies... welcome to your next favorite series! Persephone Pringle thought a retreat would be just the thing to unwind after her divorce. If only her nasty neighbor hadn't turned up dead, making her the prime suspect! Can she find out who did it before she has to ask her FBI ex-husband to (shudder) save her?

This book is Free on April 11, 2026

Knit One, Purl a Secret

Knit One, Purl a Secret FREE by Tessa Silver: A box of crimson yarn. Secrets that won’t stay buried. When Nettie Silverloop’s knitting projects start unraveling deadly truths, a cozy mystery turns dangerous. In Quillhaven, magic stitches everything together… but this time, it might stitch up a killer.

This book is Free on April 11, 2026

A Very Coastal Christmas (Cozy Christmas)

A Very Coastal Christmas (Cozy Christmas) FREE by Camille Cabrera: When the body of an environmentalist winds up in the nearby wetlands, Blue takes it upon herself to comb the sleepy shoreside for clues. She’s tossed into the deep end as the storm of the century threatens to make landfall just before Christmas Eve. Will she be able to collect all of the clues before the weather spins her cozy life into chaos?

This book is Free on April 11, 2026

The Reluctant Coroner (Fenway Stevenson Mysteries Book 1)

The Reluctant Coroner (Fenway Stevenson Mysteries Book 1) FREE by Paul Austin Ardoin: Get to know Fenway Stevenson in this first-in-series from USA TODAY bestselling author Paul Austin Ardoin! Fenway doesn't want to return to the coastal town where her estranged father is practically king, but a murder draws her into a deepening conspiracy. "Ardoin is the real deal" —Mark Stay, host of Mark Stay's Creative Differences podcast.

This book is Free on April 11, 2026

The Worried Man (Q.C. Davis Mystery Book 1)

The Worried Man (Q.C. Davis Mystery Book 1) FREE by Lisa M. Lilly: Quille thought she knew the man she loved—until she found him dead. Suicide, the police say. Murder, her instincts insist. Chasing the truth pulls her into a web of lies, corruption, and deadly secrets… and makes her the next target. Dive into the addictive Q.C. Davis series, ideal for binge readers.

This book is Free on April 11, 2026

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 April 11, 2026

Hellcat (Jax Diamond Mysteries Book 9)

Hellcat (Jax Diamond Mysteries Book 9) FREE by Gail Meath: There's a legendary killer in town but solving the case may hit too close to home. Join Jax Diamond, his partner, Ace, and Broadway star Laura Diamond, along with a crazy cast of friends, fight crime in 1920s New York City. "The twists actually twist and clues are layered brilliantly. Hellcat didn't just entertain me. It outsmarted me." -Amazon

This book is Free on April 11, 2026

Emergence (The Emergence Series Book 1)

Emergence (The Emergence Series Book 1) FREE by Guy Portman: 'Emergence is as hilarious as it is dark ...' – M.Ryles (Vine Voice) '... another incredibly entertaining read from this outrageously talented and criminally underrated author.' - C.Hall (Vine Voice) 'A Sarcastic, Violent Pleasure.' - Reviewer

This book is Free on April 11, 2026

Deadly Gold Rush (The Indie Retirement Mystery Series Book 2)

Deadly Gold Rush (The Indie Retirement Mystery Series Book 2) FREE by Landis Wade: Standalone thriller steeped in Carolina gold rush history — treasures, trials, and tribulations. "Wade takes readers on a high-octane ride… This culminates in a nail-biting trial...” —BookLife Reviews "Deadly Gold Rush caught my attention from the first sentence and kept me transfixed to the very end." — Readers’ Favorite Reviews

This book is Free on April 11, 2026

The Gods of Sleep

The Gods of Sleep FREE by Robert Mix: Can consciousness exist outside the brain? The Gods of Sleep follows Sean Hastings, a stockbroker stuck in a mundane life and suffering from insomnia. After taking an Amazonian compound to help him sleep, he inadvertently enters a world of dreams, conspiracy, and murder. Sean is left questioning reality and consciousness, and finds himself the only person able to stop a high-profile assassination.

This book is Free on April 11, 2026

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The John Kite Thriller Series

The Art of Danger (John Kite Book 1)

The Art of Danger (John Kite Book 1) FREE by Stuart Doughty: Three are killed, just to steal a painting by a forgotten artist. Who wants it so badly, and why? PI John Kite follows a renegade spy and finds it's not about money or art. As a sassy, female ex-cop shines new light on a tragedy from Kite’s past, together they uncover the horrifying motive behind the heist and must act fast to stop a catastrophe.

This book is Free on April 10, 2026

Other Books in the series

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Frozen Corpses, Vatican Devices, and Vanished Daughters: Free Mystery / Thriller eBooks

The Box

The Box FREE by Dan Wheatcroft: British Detective Thurstan Baddeley and his Chief despise each other. As a result, Thurstan is condemned to a life of geriatric cold cases in a place beyond civilization as he knows it. No explosions, or car chases, not even a slammed door. Just a deep gurgle and high-pitched whine from an increasingly malfunctioning toilet cistern. Welcome to Sutton Box, a place where Police careers go to die.

This book is Free on April 10, 2026

Cavaliered to Death (Barkview Mysteries Book 1)

Cavaliered to Death (Barkview Mysteries Book 1) FREE by C.B. Wilson: Welcome to Barkview—where dogs are pampered, people are quirky, and murder is never part of the plan. When a missing show dog leads to a live TV accusation against Cat Wright’s Aunt Char, a gunshot turns scandal into murder. Now Cat must uncover the truth before the killer strikes again.

This book is Free on April 10, 2026

Ghost Mortem (Haunted Everly After Mysteries Book 1)

Ghost Mortem (Haunted Everly After Mysteries Book 1) FREE by ReGina Welling & Erin Lynn: Dead exes don’t text—but they can haunt. Everly Dupree’s fresh start goes spectacularly wrong when she stumbles over her murdered high school ex… and his ghost. He’s pushy, sarcastic, and refuses to rest until she solves his murder, while a killer who’s still very much alive watches her next move.

This book is Free on April 10, 2026

Time Kneels Between Mountains (Seka Torlak Mystery Book 1)

Time Kneels Between Mountains (Seka Torlak Mystery Book 1) FREE by Amra Pajalic: Srebrenica, 1992, in a town besieged by the enemy, and torn apart by corruption, Seka fights for survival and seeks justice for those who are at the mercy of unscrupulous profiteers.

This book is Free on April 10, 2026

Stray Cat Blues

Stray Cat Blues FREE by Robert Bucchianeri: A missing sister. A little girl all alone. Can Max Plank, San Francisco's PI extraordinaire, untangle the mystery before all is lost? As the mayhem and dead bodies pile up, Max realizes that the only way to get the whole truth involves risking his own life. But for Max Plank, this is just the cost of doing business in the game he's decided to play.

This book is Free on April 10, 2026

Revenge on Ice (Sara/Ryker Mysteries Book 2)

Revenge on Ice (Sara/Ryker Mysteries Book 2) FREE by Linda LeBlanc: Discovery of a frozen corpse pulls detectives Sara and Ryker into a complex investigation tied to a tragic expedition on Mount Everest. Each climbing member becomes a suspect with hidden secrets, revenge, and motives. Twists and turns evolve into a surprise ending that escalates the mystery to a deadly hunter vs hunted race against time.

This book is Free on April 10, 2026

Oceans of Trouble (Tyler's Trouble Trilogy Book 2)

Oceans of Trouble (Tyler's Trouble Trilogy Book 2) FREE by Travis Casey: Fast, foul-mouthed, and laugh-out-loud ridiculous, this is a sea story for anyone who’s ever tried to escape their problems… only to discover they stowed away in your seabag. Come aboard—just don’t volunteer to “blow the EOOW.”

This book is Free on April 10, 2026

The Ninth Echo

The Ninth Echo FREE by P.J. Farrell: Archaeologist Elena Marro follows his trail into the Vatican's secret archives, a flooded Roman cistern, and toward a device that can observe the past through sound. Two factions are hunting her. What waits at the centre of the Pantheon will force her to choose between a truth that could unmake two thousand years of faith...

This book is Free on April 10, 2026

The Daughter

The Daughter FREE by Dorothy Alter: THE DAUGHTER A spellbinding psychological thriller by Dorothy Alter How far would you go to protect the life you've built when the past you buried comes back to haunt you? Marianne Hartman gave up her daughter, Ellie, when she was five years old. She married and had another daughter. Then Ellie reappeared and set about terrorizing her family.

This book is Free on April 10, 2026

Kaleva Down (Airliner Down)

Kaleva Down (Airliner Down) FREE by Kalervo Mikkonen: 1984 Cold War. A Finn obsessed with finding out why Soviet war planes shot down a Finnish airliner in 1940. A romp through Hong Kong, Finland, and Estonia in pursuit of the truth, together with an English fighter pilot friend – with Mossad, KGB, and MI6 at their heels. Actually, not a very good idea. Will the mystery be solved or buried forever?

This book is Free on April 10, 2026

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Gia Santella Crime Thriller Series

Vendetta (Gia Santella Crime Thriller Series Book 1)

Vendetta (Gia Santella Crime Thriller Series Book 1) FREE by Kristi Belcamino: After Gia Santella’s parents die, she drowns her grief in bad behavior until one day a letter comes in the mail and everything changes. The death of Gia’s parents was no accident. They were murdered. Now, Gia must find the murderer before he makes her his next victim.

This book is Free on April 9, 2026

Other Books in the series

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Unexpected Trials, Hidden Alliances, and Heated Rivalries: Free Mystery / Thriller eBooks

Blood in the Yellowstone (Deputy Jordan Tynes Modern Westerns Book 3)

Blood in the Yellowstone (Deputy Jordan Tynes Modern Westerns Book 3) FREE by Gregory C. Randall: This third mystery in the Sheriff Jordan Tynes series confronts the consequences of an old bank robbery in Livingston and the repercussions during Jordan’s run for sheriff of Park County, Montana. One man took the fall, three others got away, and behind that robbery lies a secret. Jordan’s opponent, Police Chief Wes Banning, will do what he must to keep the truth hidden.

This book is Free on April 9, 2026

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 April 9, 2026

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Serial Nightmares, Deadly Escapes, and Hidden Secrets: Free Mystery / Thriller eBooks

Murder at the Lighthouse (A Sun Harbor Mystery Book 2)

Murder at the Lighthouse (A Sun Harbor Mystery Book 2) FREE by Holly Finch: When Alice Monroe’s ex-fiancé crashes Sun Harbor’s biggest festival—just before a town councilman turns up dead—she finds herself at the center of a baffling murder case. Amid lively celebrations, mischievous pets, and small-town secrets, Alice must uncover a killer before the festivities turn deadly.

This book is Free on April 8, 2026

The Lost & Found Department (Book 1)

The Lost & Found Department (Book 1) FREE by Frank Racioppi: We first meet Nathan Jameson as a four-year-old boy whose father abandons him at the Lost & Found counter of a grocery store. Twenty-nine years later, Jameson owns a bookstore in Southern New Jersey and an investigation business named Lost & Found Investigations. Their first case involves Russian spies, family secrets, murder, and revenge.

This book is Free on April 8, 2026

Blood (The Trish Vampire Series: A Vampire Horror Thriller Saga Book 1)

Blood (The Trish Vampire Series: A Vampire Horror Thriller Saga Book 1) FREE by K.T. Rose: Devoted wife and mother by day. Vampire serial killer by night. The FBI calls her the Loner Killer—hunting a ghost who's killed since 1890. When her latest hunt goes wrong, she's fighting for survival against enemies who want her dead. For fans of Dexter, You, and True Blood.

This book is Free on April 8, 2026

They Have No Idea Who They're F***ing With (Swerve)

They Have No Idea Who They're F***ing With (Swerve) FREE by Jonathan Maas: The kidnappers messed with the wrong suburban wife. Her husband is being held at ransom, and he tells his captors they should let them go for their own sake. His wife does not play by the same rules as ordinary people, and will not only free him, but make his abductors regret ever being born. But time is not on her side, or his!

This book is Free on April 8, 2026

Shadows of the Orb

Shadows of the Orb FREE by Peter Stokes: A 2,000 km cycle ride. A titanium sphere that could end oil forever. And the men who will kill to stop it. Hunter Reid just wanted to ride from Canterbury to Rome. Now he is racing across Europe with the world's most dangerous secret - and a private army on his tail.

This book is Free on April 8, 2026

Liberty Reckons: The Secret Talks That Could Reshape North America (The SIGMA Directive Series Book 8)

Liberty Reckons: The Secret Talks That Could Reshape North America (The SIGMA Directive Series Book 8) FREE by J. Maddox Kane: What if the real story of USMCA and North America’s future was hiding in conversations no one thought would ever be heard? Liberty Reckons follows private calls, intercepted fragments, and off-record exchanges that reveal the reality behind the rhetoric in a dark, intelligence-style political thriller.

This book is Free on April 8, 2026

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Secret Reunions, Desperate Survival, and Restless Guardians: Free Mystery / Thriller eBooks

Falls & Familiars

Falls & Familiars FREE by Hazel Whitmore: A mysterious legacy. Seven magical cats. And a secret that won’t stay hidden... Aunt Evie knows being a Guardian isn’t just about brewing tea; it’s about keeping the peace. But as her seven rescue cats, each with a magical spark, grow restless, Evie must prepare. A charming cozy mystery prequel!

This book is Free on April 7, 2026

Riley's End

Riley's End FREE by Bill Hansmann: Anthony "Big Tony" Cevilli has agonized over his friend's death for fifty years. Now, a health crisis makes him determined to get to the bottom of the crime. He enlists the Atkinson Detective Agency, run by his son and daughter, to solve the crime. A "can't put it down" story sure to please.

This book is Free on April 7, 2026

One Good Time (Titus Ray Thrillers Book 10)

One Good Time (Titus Ray Thrillers Book 10) FREE by Luana Ehrlich: CIA covert operative Titus Ray is asked to do the unthinkable and allow a terrorist to enter the country illegally in order to stop an attack on the U. S., but as he tracks the terrorist to his destination, he suffers a devastating loss that threatens to derail the mission. Can his faith overcome his personal anguish in time to avert the disaster?

This book is Free on April 7, 2026

Surfer’s Circle

Surfer’s Circle FREE by Gaya Levin: Five young Israelis discover freedom and unexpected love while backpacking and surfing in Costa Rica. Months later, they reunite at a desert trance festival in Israel—where a brutal terror attack shatters the celebration and turns their night into a desperate fight for survival.

This book is Free on April 7, 2026

The Haunting of Ember Creek

The Haunting of Ember Creek FREE by Marie Wilkens: Three women. Twenty-five acres. And twenty-three bodies buried beneath them. What was supposed to be an artists' retreat becomes a fight for survival when the land begins to wake... and the dead want company.

This book is Free on April 7, 2026

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Order of the Black Sun Thriller Series

Ice Station Thule (Order of the Black Sun Book 1)

Ice Station Thule (Order of the Black Sun Book 1) FREE by Preston William Child: A 97-year-old murdered in a Scottish nursing home. A Nazi scientist — protected by the British government for decades. The trail leads to Ice Station Thule: a secret U-boat base beneath Antarctic ice. What the Nazis left in those frozen corridors was never meant to be found.

This book is Free on April 6, 2026

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