Also Writing as Katie Mackenzie

While Katie Mackey is known for writing poignant romances and emotionally charged love stories, she also writes under the pen name Katie Mackenzie, where she ventures into far darker and more intense territory. Under this name, her work is deliberately unflinching, exploring the edges of horror, suspense, and splatterpunk with a bold and unapologetic voice. These stories are not for the faint of heart. They are crafted to disturb as much as they are to enthrall, pulling readers into worlds where passion turns violent, beauty exists alongside the grotesque, and human nature is laid bare in its most primal form. Katie Mackenzie’s writing is meant to thrill, to shock, and to haunt long after the last page is turned, offering an experience that challenges readers to confront both the darkness in her characters and, often, within themselves.

Claimed Souls - A Dark MC Romance

Easton doesn’t feel. He doesn’t love. He destroys. Raised in blood and violence as the adopted son of The Claimeds ruthless president, he was never meant to be anything but a killer. No conscience. No mercy. No weakness. And love? That’s the deadliest sin of all.

Lexi is desperate. Her ex is coming for her, and if she doesn’t stop him first, she’ll die. With nowhere left to run, she does the unthinkable—she sells her soul to The Claimed. Their price? Whatever they want. Whenever they want it.

But the debt never comes due. Instead, her life starts to change in ways that make her blood run cold. Cameras hidden in her apartment. A new lock on her door. And the people who hurt her? They start disappearing. She doesn’t know who’s pulling the strings—until she meets him.

The devil in leather. The man who’s been watching her. Stalking her. he calls her ‘mine’. A word spoken like a vow. A warning. A death sentence.

But love in his world is forbidden. And when his father finds out, he does the one thing that will break Easton completely. Now, there’s only one way to save her. Kill the man who made him a monster. Take the throne in blood.

She was never meant to survive him. But he was never meant to love. And now? He’ll burn the whole world to the ground to keep her.

Little Miss Poison - They Called Her Crazy. She Called Them Corpses.

One splatterpunk novella, hold the romance - Extra knives, extra severed cocks.

Cassidy Rae Monroe has always been a pretty little plaything—used, discarded, and damned by every man who ever dared to touch her. But when the last bastard leaves her broken and bleeding, something inside her snaps. A year later, she’s no one’s victim. She’s their worst goddamn nightmare.

Now she wears red lipstick like war paint and lace like armor, carving her revenge one mutilated corpse at a time. Sweetheart is her blade. Vengeance is her gun. And she’s taking requests.

Scorned women whisper her name like a prayer—and she answers. Cheaters, abusers, gaslighters and manipulators… every filthy, foul-mouthed pig who’s ever gotten away with it is on her list. And she’s not just killing them. She’s ruining them.

Grotesque. Gory. Gloriously unhinged.

This is not a love story.

This is rage dressed to kill.