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The Killing Saga #1

The Killing Complex

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'Fight, survive again, and I think your owner will continue to back you. Or don't and you can leave. You'd be in separate bags of course. They usually burn the remains.'

 

Cassie left her constrained life in England for a brighter future in Europe, but now she's a captive of the Complex, trapped in a small cage with a collar around her throat, given artificial strength and forced to battle for her life.

 

Her hope and humanity can only last so long in this new world of violence and isolation, and she's turning into one of the dangerous animals she must fight. But when she finds a saviour for her soul, Cassie will have to face up to the trauma she has endured and the horror she has caused.

 

The Killing Complex is a fast-paced survival thriller and the first book in the Killing Saga.

 

If they treat you like a monster... how long until you become one?

288 pages, Kindle Edition

Published February 18, 2023

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About the author

K.G. Leslie

6 books3 followers

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5 stars
22 (28%)
4 stars
27 (35%)
3 stars
17 (22%)
2 stars
8 (10%)
1 star
2 (2%)
Displaying 1 - 14 of 14 reviews
Profile Image for Yara Love Languages.
7 reviews
May 20, 2026
I know the author through social media and decided to read the book out of curiosity. It was not what I was expecting at all! It left me a bit breathless and confused honestly, but also wanting to read the next one. It took me a bit to really get into it, initially it was confusing and slower than I would have imagined, and it was much more violent than expected. BUT, once I got over the cruelty and violence (you get used to it), the psychological aspect really takes the stage. The main character is interesting, I was constantly on edge for her, and the evolution of her mind, emotions, and psyche is gripping. As a nit-picky editor, my impression is that the writing is very solid. I would have liked more answers to be honest, but the way the story evolves is part of what makes it interesting and ultimately doesn't let you put the book down. But I blew through it in just a couple of days, and I'm looking forward to the next one. Though I need a minute to digest it. Throughout the entire book my main thought was "what in the holy hell hole is going on here?" But I think that that's exactly what makes it good. If you're into psychological thrillers, heavy on the psychological, then I absolutely recommend!
12 reviews2 followers
May 24, 2026
Cassie is kidnapped and trapped in a cage, made to fight for her life, quite literally, on a regular basis.

We get to witness the physical and psychological effect this has on her, and I found myself blasting through the book to find out what would happen next.

The story contained some flashbacks which I really enjoyed, and made you feel more of an emotional connection to Cassie while she tries hard not to feel anything at all in an effort to detach herself from reality.

The book is very well written and I applaud K.G. Leslie on being able to capture my attention so raptly when a lot of time, Cassie is trapped alone in a cage. It could've easily become repetitive, but didn't feel that way at all to me, and that takes skill.

Being the first book of four, it feels like it's building up to something big and I'll definitely be reading the second!
Profile Image for Abby.
41 reviews2 followers
April 1, 2023
HWAT THE FUCJKK


Ok first,reading this book was confusing sometimes with her memories and dreams but reasonably ok to read

Second,This book is actually so original like i haven’t ever read a book like this and i actually loved it like for e.g teen murder books are basically copy and paste but this book is so different.

Third, Thomas made me cry i love him so much and i really hope they get to see eachother in the next book or i will act kms.He’s so adorable and the thoughts of him dying would make me cry


Final, tbf i did get a bit annoyed how i kept repeating itself but somehow the writing just made me keep reading.Was surprised they didn’t SA her at all like wow unexpected fr.Her attempts of escaping made my heart race.

Over all absolutely loved this book.
This entire review has been hidden because of spoilers.
Profile Image for Jim.
205 reviews3 followers
October 2, 2024
Full review: https://girlswithguns.org/killing-com...

Without giving them away, there are a couple of very effective twists here, which I did not see coming – and, indeed, I defy anyone to say they did. The first is something of a cheat, considering how much of the time to that point has been Cassie’s internal monologue, and this has carefully hid a key piece of information. But the second works particularly well, because it demonstrates that the bad guys here aren’t stupid: Carrie is going to need to do more than bludgeon her way out. Good though she certainly is at that, as is proven repeatedly. This isn’t a book for animal rights activists though, with Cassie working her way up from herbivores to the top of the food chain, in addition to her human opponents.
Profile Image for Jesse Gleason.
224 reviews20 followers
September 14, 2023
This book left me so frustrated. I almost gave up half way through, but I hoped it would get better. Then it started to get better, and then stalled out again. It was really slow and super vague. Once it seemed like there was going to be a big twist and then that kind of scene never happened again, like they forgot to remove it during editing. The next twist had an obvious result. And then it just kept building up to nothing. I'd like to say I'll read the second one hoping for answers and resolutions but I won't. Moving on to something else.
#bookfail #bookstagram #bookworm #letdown #tooslow #notathriller
Profile Image for Charles Jones.
Author 24 books99 followers
December 16, 2023
The Killing Complex is a lot to take. Its ultraviolence left me unsettled at times, but there was so much of it after a while it was just oh hum. I honestly didn’t understand the point of it at times or where it was going. Since it’s a series, I probably will never know, since I didn’t really care for it.
Profile Image for Brigette.
10 reviews
March 24, 2024
I'm rating this a 3.5. The plot was interesting but the story seemed slow to me. I wanted to find out what was going to happen, but was also a little bored. While I think this is a good read, and could see why others enjoy it, it did not leave me with any desire to pick up the second story right away. I'm open to trying the second book one day, but not in any hurry to.
1 review
June 10, 2025

Finished the book in 2 days.
Fantastic writing, kept my interest the entire time.
Obviously i need to start book 2 immediately. I cant hang around here wondering what happened to Cassie and if she will ever.... Lets not leave any spoilers here.
137 reviews
June 12, 2023
Captive

Fast paced unusual and interesting story line which keeps the reader intrigued. Well rounded characters that all interact well together
12 reviews
June 13, 2023
Strange

Never read anything like this before but enjoyed it but wish it has ended better very poor didn't finish off the story
Profile Image for Heather Roy.
9 reviews1 follower
January 24, 2024
This book was way too back and forth for me. It would grab my attention then stall out. I have to know what happens to them so I will be reading the next book in the series.
Profile Image for Salomé Diana.
98 reviews
May 21, 2026
1.75
Me gustó la relación entre Cassie y Thomas pero no creo que sea suficiente para continuar la saga 🤷🏻‍♀️
Displaying 1 - 14 of 14 reviews