The Best Debut Novels of the Month: September 2026

Here are five debut novels to check out this month, all of which are somewhere between thriller, noir, crime, and horror. Please don’t shoot the messenger if there’s too much horror here, it’s kind of the season for it. Happy fall reading 🙂

As always, all blurbs are by yours truly unless otherwise stated.

Hallie Shepherd, Call Off the Dark
(William Morrow)

This haunting portrayal of grief and isolation will have you hugging your loved ones close and feeling grateful for the close proximity of your neighbors. Call Off the Dark is a considerable debut, a gothic thriller as confident in its writing as it is bold in its twists; I look forward to seeing much more from Hallie Shepherd.

Deena Helm, Our Cut of Salt
(Tor Nightfire)

The youngest daughter of a Palestinian family decides to finally see their ancestral home in Haifa, in mourning for lost memories after the death of an elder. Her grandmother mourned her lost city more than she ever loved her daughter, named Haifa and destined to only ever disappoint. Now, Marina is determined to uncover her family’s secrets and restore their connection to their old abode, but the house has sickened under the weight of occupation, devouring its new denizens, scaring away neighborhood cats, and generally freaking everyone out, including the ghost of Marina’s grandmother. Something haunted is waiting for Marina, something corrupted, something that will put her in great danger—unless her mother, and the ghost of her grandmother, can figure out a way to rescue both their family and their home.

Megan Mostyn-Brown, The Need
(Del Rey)

There are a lot of books about cannibalism out this year, and a lot of titles getting compared to Succession, but this is one of the weirdest in either category. Megan Mostyn-Brown’s debut follows a mother and her teenage children as they find themselves in the clutches of her dead husband’s family, desperate for an heir who shares their predilection for human flesh. The ancient dynasty of monstrous aristocrats are not going to let their scion’s widow or her children get away easily, but as they often say, even in books about extremely wealthy cannibals, never underestimate the power of love. I can’t wait to see what Mostyn-Brown does next!

Emily Zinnikas, I Am the Monster Under the Bed
(St Martins)

This book looks so weird! An artist returns to her hometown after being outed for her connection to an infamous true crime case; her only friend in childhood was the monster that lived under the bed, who taught her to read and was in general a great friend, but obviously must have something to do with these murders. I can’t wait to find out how it all connects! And I do love a friendly monster…

Nicholas Russell, Observer
(Ecco)

Jeff VanderMeer fans, you absolutely do not want to miss Nicholas Russell’s otherworldly debut, about a young woman whose investigation of the disappearance of her mother takes her to an abandoned observatory in the Nevada desert. All she has are her mother’s notes, and the writings of a surveyor from nearly a century before who seems to have encountered something unexplainable out there. I’ve been waiting all summer for this book!–OR