Nat Cassidy

Nat Cassidy’s highly commercial, debut horror novel Mary: An Awakening of Terror, blends Midsommar with elements of American Psycho and a pinch of I'll Be Gone in the Dark. Mary is a quiet, middle-aged woman doing her best to blend into the background. Unremarkable. Invisible. Unknown even to herself. But lately, things have been changing inside Mary. Along with the hot flashes and body aches, she can’t look in a mirror without passing out, and the voices in her head have been urging her to do unspeakable things. Fired from her job in New York, she moves back to her hometown, hoping to reconnect with her past and inner self. Instead, visions of terrifying, mutilated specters overwhelm her with increasing regularity and she begins auto-writing strange thoughts and phrases. Mary discovers that these experiences are echoes of an infamous serial killer. Then the killings begin again. Mary’s definitely going to find herself.

An Awakening of Terror

Mary

Nat Cassidy is at his razor-sharp best again with his horror novel Nestlings which harnesses the creeping paranoia of Rosemary's Baby and the urban horror of Salem's Lot set in an exclusive New York City residential building. Ana and Reid needed a lucky break. The horrifically complicated birth of their first child has left Ana paralyzed, bitter, and struggling: with mobility, with her relationship with Reid, with resentment for her baby. That's about to change with the words any New Yorker would love to hear—affordable housing lottery. They've won an apartment in the Deptford, one of Manhattan's most revered buildings with beautiful vistas of Central Park and stunning architecture and disturbing gargoyles. Reid dismisses disturbing events and Ana’s deep unease and paranoia as the price of living in New York—people are odd—but he can't explain the needle-like bite marks on the baby. Other Books by Nat Cassidy: Mary: An Awakening of Terror

Nestlings

Rest Stop

One night, Jess, a struggling actress, finds a five-year-old runaway hiding in the bushes outside her apartment. After a violent, bloody encounter with the boy's father, she and the boy find themselves running for their lives. 

As they attempt to evade the boy's increasingly desperate father, horrifying incidents of butchery follow them. At first, Jess thinks she understands what they're up against, but she's about to learn there's more to these surreal and grisly events than she could've ever imagined. 

And that when the wolf finally comes home, none will be spared.

When The Wolf Comes Home

Mary: An Awakening of Terror

Steal the Stars, a debut novel by Nat Cassidy, is based on the science fiction podcast from Tor Labs, written by Mac Rogers. Dakota “Dak” Prentiss guards the biggest secret in the world. They call it “Moss.” It’s your standard grey alien from innumerable abduction stories. It still sits at the controls of the spaceship it crash-landed eleven years ago. A secret military base was built around the crash site to study both Moss and the dangerous technology it brought to Earth. The day Matt Salem joins her security team, Dak’s whole world changes. It’s love at first sight—which is a problem, since they both signed ironclad contracts vowing not to fraternize with other military personnel. If they run, they’ll be hunted for what they know. Dak and Matt have only way to be together: do the impossible. Steal Moss and sell the secret of its existence. And they can’t afford a single mistake.

A Novel

Steal the Stars

Nat Cassidy is at his razor-sharp best again with his horror novel Nestlings, which harnesses the creeping paranoia of Rosemary's Baby and the urban horror of Salem's Lot, set in an exclusive New York City residential building. Most Anticipated Horror Books of 2023—Paste Magazine, Goodreads Most Anticipated Crime Fiction of Fall 2023—Crimereads October's Best Sci Fi and Fantasy Books — LitHub, Bibliosanctum Ana and Reid needed a lucky break. The horrifically complicated birth of their first child has left Ana paralyzed, bitter, and struggling: with mobility, with her relationship with Reid, with resentment for her baby. That's about to change with the words any New Yorker would love to hear—affordable housing lottery. They've won an apartment in the Deptford, one of Manhattan's most revered buildings with beautiful vistas of Central Park and stunning architecture. Reid dismisses disturbing events and Ana’s deep unease and paranoia as the price of living in New York—people are odd—but he can't explain the needle-like bite marks on the baby. Other Books by Nat Cassidy: Mary: An Awakening of Terror At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

The first collection from USA Today bestselling author Nat Cassidy, featuring his unique blend of gleefully terrifying short fiction. "[A] platter of phobias... Luckily, for every scare, there is a sense of resilience and a laugh in the face of fear to get you there." —Fangoria Magazine, on Rest Stop There are locations in this world where the light doesn’t seem to reach. Where, no matter how illuminated the place might be, shadows creep in too strongly to fight back. A suspiciously empty gas station rest stop in the middle of the night, littered with googley eyes... A doctor’s office, where a bottle of booze and a tear-stained folder wait on the desk... A tech millionaire’s haunted kitchen... A Bible-quoting ventriloquist’s dingy apartment... A yoga retreat in the middle of the desert, silent except for the screaming... These locations and more are your destination and bestselling author Nat Cassidy will be your guide. Featuring the Bram Stoker Award-nominated, critically acclaimed novella Rest Stop (one of Esquire’s Best Horror Books of 2024), along with a number of other original short stories, some which have never been published before, I Know A Place: Rest Stop and Other Dark Detours is a travelogue down twisting side streets and through alleyways where the darkness has eyes... and teeth. Let’s hope you make it home in one piece. "A blood-soaked freakout that does for gas stations what Jaws did for beaches." —Kirkus Reviews, on Rest Stop

Rest Stop and Other Dark Detours

I Know A Place

Nat Cassidy, author of Mary and Nestlings, returns with When the Wolf Comes Home, an unabashed, adrenaline-fueled pop horror thriller reminiscent of Dean Koontz and Stephen King, and inspired by The Lathe of Heaven and Terminator 2. Download a FREE sneak peek today! One night, Jess, a struggling actress, finds a five-year-old runaway hiding in the bushes outside her apartment. After a violent, bloody encounter with the boy's father, she and the boy find themselves running for their lives. As they attempt to evade the boy's increasingly desperate father, horrifying incidents of butchery follow them. At first Jess thinks she understands what they're up against, but she's about to learn there's more to these surreal and grisly events than she could've ever imagined. And that when the wolf finally comes home, none will be spared. Other Books by Nat Cassidy Mary, an Awakening of Terror Nestlings At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

Sneak Peek for When the Wolf Comes Home

Nat Cassidy, author of the acclaimed horror Mary, returns with When the Wolf Comes Home, an unabashed, adrenaline-fueled pop horror thriller where the darkest fears can become reality. A USA Today bestseller! ABA Indie Bookseller bestseller! Best Horror of 2025—Men's Health, Vulture Editors' Pick—Page Six “Get your claws into this one, horror fiends. It's terrific. . . . Sink your teeth into a classic.”—Stephen King “A crazy-good, balls-to-the-wall horror novel . . . it’s full throttle from the first pages.” —Joe Hill “This is the kind of great, big, epic horror novel we got back in the '80s that came out swinging for the fences and left everything on the field. Welcome back, you shaggy, bloody monster of a book!” —Grady Hendrix Best Books of 2025—Vulture The 25 Best and Most Anticipated Horror Books of 2025—Men's Health Most Anticipated Horror of 2025—Paste Magazine, LitHub One night, Jess, a struggling actress, finds a five-year-old runaway hiding in the bushes outside her apartment. After a violent, bloody encounter with the boy's father, she and the boy find themselves running for their lives. As they attempt to evade the boy's increasingly desperate father, Jess slowly comes to a horrifying understanding of the butchery that follows them—the boy can turn his every fear into reality. And when the wolf finally comes home, no one will be spared. Other Books by Nat Cassidy Mary, an Awakening of Terror Nestlings At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

Nat Cassidy

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