Little Miss Poison

by Katie Mackenzie

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.

220 pages, ebook

First published May 28, 2025

About the author

Katie Mackenzie doesn’t write the kind of romance that plays nice. If you’re looking for sugar-coated love stories where everything ties up in a perfect little bow—run. Now. She delivers the Happily Ever Afters readers need, not necessarily the ones they want, and she’s not afraid to break a few hearts (or a few characters) to get there. If a hero needs to fall, he falls. If a love story demands a little bloodshed—well, love hurts, doesn’t it?

A neuro-spicy author and special needs mom, Katie is a master of navigating chaos, whether it’s in her stories or real life. As a proud military wife, she knows all about embracing unpredictability—whether that means a plot twist or a toddler tantrum. Her survival toolkit includes iced coffee, a dark sense of humor, and a love for good food that borders on obsession.

When she’s not crafting love stories with bite, you’ll find her devouring books, seeking out the best eats, or advocating fiercely for her family. Katie’s stories are bold, raw, and just a little bit twisted—perfect for readers who like their love stories with sharp edges and aren’t afraid to get a little bruised along the way.

If you’re ready for romance that makes you feel something (even if it’s the sting of betrayal), Katie Mackenzie is your next one-click obsession.

Reviews

[J.J. J. Johnson · Rating 5 out of 5]

Rage, laughter, and a lil bit of splatter! SUCH A FANTASTIC RIDE!!!! Cassidy Rae Monroe does what we all wish we could do at the height of our rage. I ate every bit of this book up, kicking and screaming, laughing maniacally, and horrified in the best of ways! You have to read this feme rage splatter punk artwork to experience the catharsis I did.

[Sylena Douville · Rating 5 out of 5]

THIS CHARACTER IS FERAL

I loved it so different but it felt like as I was reading it was taking some of the heaviness of the world away with each request each person LMP went after

Also Katie.. your mind is twisted in the best way…

[Shay loves books · Rating 4 out of 5]

What a wild ride! This book is the perfect book of your looking for a book with lots of feminine rage and men (mostly) getting what they deserve!

The FMC got tired of all the BS and took matters into her own hands and had others begging her to help them get their revenge! It was hilarious and grotesque all at the same time!

Don’t mess with the power of a woman scorned and absolutely fed up with the vile treatment of men. You burn her, she’s gonna burn you back only 1000x’s worse! If you’re not afraid of some splatterpunk, gore, severed penis’s all the while saying Yes!! They got what they deserved, then this is the perfect book for you!

[Natasha Durgan · Rating 5 out of 5]

This is not your average book! This book made me feel rage, revenge and everything in between! This book shows the things we could all do to the people that hurt us!!! if you are amazing female I highly recommend you read this book! I feel seen and heard!

[Erin Ellison · Rating 5 out of 5]

"But I remember every face. Every voice. Every monster."

A friend recommended this one to me and said you HAVE to read this so I did.
The dedication to this book is 🔥🔥🔥 and the warnings and notes after had me cracking up 🤣🤣 omg I love this author.

This FMC is completely unhinged and absolutely feral in the best way.
Honestly, this was just a fun, gory read. I have a strong stomach but the visualization throughout this at some parts had me a tad queezy. The authors attention to detail is um well it's there! 😂

If you just want a funny, gory, all the feminine rage possible, quicker read this novella is for you! I don't recommend reading while eating... It gets pretty twisted 🤯😂

This one was a nice escape from reality! How the author came up with some of this stuff is beyond me but I'm so glad she did! 🖤 I wouldn't be upset if this became a movie or show. All the splatter! Definitely adding all the other books this author has written to my TBR.

✔️Feminine Rage
✔️Serial killer FMC
✔️Revenge
✔️Novella
✔️Morally black FMC
✔️All the gore

[Amber · Rating 4 out of 5]

I went into this blindly and holy moly !!!!! there were parts that I laughed out loud ... parts I cringed thinking about the events ... but I felt like it was a good story fueled by female rage !!!!! if ur in the market for a splatter punk female bad@$$ on a mission to destroy men who have wronged women ... checknthis out

[amina mohamed · Rating 5 out of 5]

O.M.G.

I haven't written a review in awhile cause nothing has been worth it...but this is worth everything!!! Well written female rage. It's everything that women hold back just let go and then some. Thank you.