9 New Mystery and Thriller Books to Read This October

After discovering that her parents death over a decade ago might not have been accidental, private investigator Sarah Booth Delaney can’t trust anyone. Everyone, from her best friend and business partner to her lover kept something from her.

Even her ghost-turned-spiritual guide kept her in the dark. But that doesn’t mean she isn’t going to look for answers.

While investigating their deaths, Sarah takes on a case investigating the DeLonge Mansion, a Mississippi home with no heirs left to claim it.

Between her parents, the mansion, and her nemesis returning to get in her way, Sarah has plenty to navigate. And if she wants a happy holiday season, she needs to find answers and repair her tattered relationships before it’s too late.

Armand Gamache is back, and this time he’s in Quebec.

When a mysterious midnight phone call informs him that there’s a body in Lost Nation before the line goes dead, he suddenly finds himself searching the forests for the mythical Lost Nation and the body allegedly left there.

What they find is stranger than they ever imagined.

The unidentified corpse is over a hundred years old. He’s in an abandoned cemetery on top of an unmarked grave.

Nothing in the case adds up, sending Gamache and his team searching for a lost ship, missing documents, and a mysterious plant no one has seen in a century.

And when it becomes obvious that the body on the grave isn’t the only death, they have to solve the crime to avoid the catastrophe these buried secrets threaten to release.

On the brink of the Great Depression, notorious womanizer and moonshiner Richard Milford is dead. There are plenty of suspects, but at the top of the list are his four wives.

Each one has a story to tell. But as their version of events begin to compete with each other, the idea of a true story becomes harder to piece together.

Who wanted Richard Milford dead? And why?

The truth might surprise you.

On a forested road, in the middle of nowhere, in the dead of night during a thunder storm, someone stands in the middle of the road.

The first car swerves, missing the person but hitting a fallen tree. Four more cars crash in the same way.

At least there’s a dive bar nearby. The five strangers stumble inside.

Some are injured. None have cell service.

And it doesn’t take long to realize that something isn’t exactly right.

Was the person in the road warning them? Or setting a trap?

All they know is going outside is a very bad idea, and that if they want to survive, they’re going to have to work together to figure out what exactly brought them together in the first place.

Sometimes the people who stay are the ones who haunt us the most. That’s how it feels for Middle Sister sometimes.

Her ex-best friend and ex-boyfriend remind her of who she once was. Her family shows her who she can never be.

John Smith, a local white man living on stolen reservation land offers her a glimpse into becoming someone else entirely. And then there are the thousands of missing and murdered Indigenous women, including Older Sister, whose absence tears her family apart.

As Middle Sister searches for her missing sibling, the only clue is a white man named Eric who Older Sister claimed loved her. But finding him in a sea of white men in Minnesota is more than even she can handle.

To do that, she needs help. She needs her community.

And for that, she needs to forgive herself and fight for her future.

After discovering that her husband might be leaving her, Claire Fitzroy just wants to get home. She boards the train from Manchester to London, thinking the drunk man sitting next to her invading her leg space would be the worst of it.

Then a group of armed men hijack the train. In a moment, Claire has to decide whether to fight back or do nothing.

Both options could mean she dies.

Claire has had enough of men dictating how she should behave and chooses to save lives. But how things seem in the heat of the moment versus how they play out in the courts and social media can be two very different things.

It turns out, saving the day was just the start, and Claire’s story is only beginning.

When a wealthy relative summons Zeb Wyckham to his remote Gothic manor, he doesn’t know what to expect. But it isn’t the people he dislikes the most.

Or the fact that the entire trip was an elaborate ruse to pit family members against each other to win the family fortune. All they have to do is marry his young ward.

Zeb has zero desire to do any of that, but when he tries to leave, discovers that the gates are locked. Trapped with family he hates and an ex-lover he can barely speak to, the only thing worse is realizing that something or someone is watching them.

Can Zeb overcome the past and work with his lover to discover the murderous mysteries of the house? And if they do, will they live to talk about it?

Detective Avery Hemlock is used to being alone. It was fine for a few hundred years, until she met human Saga Trygg and almost cost Saga her life.

Now the solitude is to protect her, even if for the first time it feels lonely. Saga isn’t happy about the situation, either.

After Avery helped solve her grandmother’s murder and she discovered how dangerous the world of the fey are, she’s been trying to focus on healing and staying out of Avery’s way.

But when a local witch is murdered, the two are thrown back together. This time the case is much bigger than it appears.

The Winter Council has secrets. And it will do anything to keep them.

When Jay Turner returns to his Boston home after his mother dies, he finds two unusual things.

One is a partially burned scrap of newspaper featuring the name Gael Brogan. The other is a small leather-bound volume.

Jay recognizes the book as one of a set commissioned in medieval times by Vlad Tepes, the man known as Dracula. His mother warned him about the dangers of the book and had donated it to a museum, so how did it end up back in her home?

With only the name on the burnt paper to go off of, he sets off to learn everything about the prominent 19th century actor who last played the infamous Count on stage. But as he digs deeper, helped by a mysterious woman he meets along the way, he realizes too late the danger his mother warned him about.

Because someone is pursuing them. And if they want to survive, they need to find out who.