13 of August’s New Mysteries and Thrillers

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Whether you’re counting down the days of summer because you don’t want it to end or you can’t wait for fall to smother the heat, publishing is ready to stack your mystery and thriller TBR list! You can put on your sleuthing cap for cozy mystery solving — delicious food and even some vampires included — or pack in all the tension with thrillers. There’s something for middle grade readers, YA readers, and adult readers.

August’s mystery and thriller releases will keep you wildly entertained—seriously, there’s a delicious hook in a thriller that will have you saying “what?!” There’s also a cold case unit at the DA’s office, a tween after a ghost photo who stumbles onto a murder mystery, a murder mystery set two months before the world ends, an accident-or-murder trope involving a sizable will, and so much more! How do we order more time for reading?

Cover Image of All We Hide by Robyn Gigl

All We Hide by Robyn Gigl

For fans of cold case units and murder mysteries

Lauren Kelly has been sent to the DA’s Cold Case Unit, which she knows is to avoid her claiming discrimination as the county’s only trans detective. Now she’s looking into a former classmate’s murder, and the case is pointing at a cover-up that will entangle a lot of people. It might also be tied to Lauren’s own childhood mystery…

cover of Ghost in the Night by Tiffany D. Jackson

Ghost in the Night by Tiffany D. Jackson

For fans of middle grade mysteries, supernatural, and ghost tours

Following her grandmother’s death, 12-year-old Harmony Roundtree is touring the country with her guitarist dad rather than being home in Harlem. While staying in Savannah, Harmony is determined to prove ghosts exist, but ends up instead with a murder mystery connected to the woman her father is staying with.

cover of Murder at the End of the World Akane Araki, Jesse Kirkwood

Murder At The End of the World by Akane Araki, translated by Jesse Kirkwood

For fans of detective duos, Japanese murder mysteries, and “an asteroid is about to hit the earth” setting

If there are only two months left to live—an asteroid is about to hit the earth—what’s the point of solving a murder? Turns out some people are trying to go about their lives as usual until they figure out what to do. Enter Haru, a university student getting her driver’s license, and Isagawa, her instructor/former police detective. When they find someone stabbed to death, they decide to investigate since the police most likely won’t.

Cover Image of The Amateur by Chris Bohjalian

The Amateur by Chris Bohjalian

For fans of literary crime novels and fictional memoirs

In the summer of 1978, 18-year-old Mira Winston’s life was changed forever after she accidentally killed someone. While at a country club, she hit a golf ball that hit a young caddie and killed him. The incident means that she doesn’t head to Yale, an affair with a much older man is revealed, and eventually, there’s a trial.

Cover Image of Not a Word by Linwood Barclay

Not a Word by Linwood Barclay

For fans of murder mystery thrillers

Strap in for this hook: Reese finds his mom and dad dead in what appears to be a murder-suicide. Except it doesn’t look right, and his mom calls him to check on his dad—she’s out with friends! Reese asks her to come home, but instead, she disappears… What is happening?!

cover of The Hardest Ones to Fool by Christina Li

The Hardest Ones to Fool by Christina Li

For fans of twisty YA and scammer stories

Amelia Wu is running a scam in her senior year of high school, posing as various girls (Amy,  Ellie, Mia) in order to date three wealthy men. It’s all going great until her best friend is found dead following a party they were all at.

Cover Image of Heart of Glass by Jennifer Hillier

Heart of Glass by Jennifer Hillier

For fans of fictional serial killers, recanting in an old case, and childhood best friends

Twenty-five years ago, Barb, Nicolette, and Lorelei were best friends hanging out with a man working at the local amusement park, Wonderland. Now the serial killer who had once confessed to Lorelei’s murder has recanted, the amusement park is set to reopen, and Barb and Nicolette are left to face the past.

This is a standalone thriller in the same setting as Wonderland.

Cover Image of My Killer Family Reunion by Dinesh Thiru

My Killer Family Reunion by Dinesh Thiru

For fans of YA mysteries, family reunions, wills, and banter!

Sixteen-year-old Jayshree Devi is at her annual family reunion when her Grand Mom is almost killed. With a sizable fortune and will at play, Jayshree teams up with her cousins to figure out if Grand Mom was involved in an accident or something far more sinister.

New In Mystery Series

book covers for And Then There Were Bun, The Shadow Friends, The Secrets We Hide, Summer Coven, The Butcher's Legay

And Then There Were Bun (Noodle Shop Mystery #13) by Vivien Chien: A delicious cozy mystery series centering Lana Lee (amateur sleuth, of course!) and her family’s restaurant in Ohio. The series began with Death by Dumpling.

The Shadow Friends (The Martini Club #3) by Tess Gerritsen: A fun new series by the Rizzoli and Isles author. This time it’s about retired spies! The series began with The Spy Coast.

The Secrets We Hide (North Falls #2) by Karin Slaughter: Small town procedural series with a sheriff lead, joined by a former federal agent in the sequel. The series began with We Are All Guilty Here.

Summer Coven (Dead & Breakfast Mystery #2) by Kat Hillis, Rosiee Thor: A supernatural, queer, cozy mystery series with an odd couple made up of vampires! The series began with Dead & Breakfast.

The Butcher Legacy (Dr. Wren Muller #3) by Alaina Urquhart: A thriller series following a forensic pathologist and her team in New Orleans. The series began with The Butcher and the Wren.


Browse the books recommended in Unusual Suspects’ previous newsletters on this shelf and see 2026 releases! Until next time, come talk books with me on Bluesky, Goodreads, Litsy, and Multitudes Contained.

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