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Therefore

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It was supposed to be a simple job. Get in. Grab the goods. Get out. Easy, right?

Not if you're caught by an alpha.


Trystan is all sharp smiles and sharper instincts—an omega thief who’s never once been caught. Until now.

Emerson is everything Trystan hates in an alpha: big, bossy, and built like a problem. Unfortunately, he’s also the one standing between Trystan and freedom.

A game of cat and mouse turns into something much more dangerous when the heat between them ignites—and neither of them are willing to back down.

He was supposed to steal from the enemy. Not fall into bed with his scent match.

As the job's deadline fast approaches and loyalties are tested, Trystan's worst job may turn out to be the most important of his life.

185 pages, Kindle Edition

Published June 28, 2025

32 people are currently reading
98 people want to read

About the author

Katherine Isaac

20 books587 followers
Katherine Isaac lives and works in Wales with her beloved cat-son. Growing up surrounded by mythology and history has fueled her love for epic stories of magic, mystery, and romance.

She is happiest with her nose in a book, pinned down by a cat, or surrounded by nature; whether that's lying on the grass or diving in the ocean.

Katherine describes herself as an eternally sleep-deprived pixie, with the mouth of a sailor and too many characters living in her brain.

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5 stars
55 (36%)
4 stars
50 (33%)
3 stars
35 (23%)
2 stars
8 (5%)
1 star
3 (1%)
Displaying 1 - 30 of 55 reviews
Profile Image for Whitney.
287 reviews319 followers
October 27, 2025
3.5 ⭐️
Emerson + Trystan
Omegaverse | Fiery omega | Tenderness | Scent match


Okay, but why did we not even get to see them go through an entire heat together 😫

....


"Allow me to make something clear to you, omega. I am your alpha. Therefore, your safety and wellbeing are now my responsibility. And i will not have you suffer through a heat out of your own stubbornness. Do you truly expect me to believe that if I checked your needy little hole, I wouldn't find it dripping with slick right now?"

"It's all for you. You're the only one who gets this knot. I know you'll take it so well."

"You, my omega, cannot hide from me. Not when you're the one person I crave beyond measure."

"I dont want to own you, Trystan. I want to worship you, because as much as you're mine, I am yours. Everything I do now is for you."

"Holding you puts everything in perspective. It means I can sleep, because the only thing that truly matters is safe in my arms."


....



⚠️potential spoilers below in detailed tropes, content and warning lists






Tropes/content:
Omegaverse
Thief + Lawyer
Age gap (unknown how big but at one point Emerson says he feels like a cradle robber when he finds out T is 24)
Omega who lost his sense of smell from scent blockers but quickly gets it back when he meets Emerson
Mine
Mates
Scent match
Fiery omega
Mate triggered heat
Spanking
Pierced nipples
Ass feasting
Forehead kisses; temple kisses, eye kisses
First time getting knotted
69
Office sex
Licks his tears
"Love" as a pet name
Begging
Nesting
First time Emerson has ever gone without a condom
Mate claiming
Tenderness
Swoon
Strict roles



Warnings:
When Emerson catches Trystan in his house he ball gags him and handcuffs him to his bath tub while he spends the day working
Trystan was abused as a child resulting in broken bones, stitches, etc.
Trystan is drugged and abducted, tied up, held at gunpoint. He's kidnapped by his boss once he finds out he's an omega. He intends to sell him. He's saved before that happens.
Profile Image for Naiomi Cox.
393 reviews31 followers
July 12, 2025
If you like Omegaverse you need to give this one a go.

MM but really well written and a really quick and spicy book.
Profile Image for Darcy’s Good Opinion.
507 reviews1 follower
June 28, 2025
5 🌟

Spice: 3/5
Plot: 4.5/5
Characters: 5/5

MM Romance
Omegaverse
Contemporary
Thief MMC
Touch Him and Perish
Fated Mates
Forced Proximity
Grumpy and Grumpier

Therefore is a standalone MM Omegaverse romance.

Trystan is a gifted thief and an omega. He uses his skills to survive and takes suppressants so he can do his job effectively. On his latest job, he runs into a rather large problem, a giant Alpha.

Emerson is a sharp lawyer Alpha. He works extremely hard to get results. He unexpectedly walks in on a crime in progress - in his own home. To complicate matters more, the thief is smart, handsome, and his scent match.

This was a fast paced fun read. The characters were vivid and extremely well written. I loved their witty banter, adorable grumpiness (don’t tell them I said that) and samsies attract energy.
Profile Image for Zoë Miranda.
610 reviews10 followers
July 7, 2025
1st person, past tense, dual PoV
Trystan Wells (25), omega (mint, metal, vetiver), thief
Emerson Richter (late 30s), alpha (leather, patchouli, vanilla), prosecution lawyer

I've been on a bit of an omegaverse kick for the past couple weeks so when this popped up in my FB feed I was immediately intrigued. I liked the adversarial set-up and that the unconventional omega was a thief, though I went in expecting a Robin Hood type situation (don't ask me why) and that's not at all what this is.

I'm a sucker for an alpha who's just a goner for his omega and while Trystan was a little prickly, he melted for his alpha. These two had chemistry for days, both in and out of bed.

This was a fairly quick read, with an engaging plot (I love a little light intrigue) and great cast of secondary characters. While it would have benefited from a little more character depth and development but I enjoyed the story very much and will happily check out the author's backlist.
Profile Image for JackaayReadsallday .
764 reviews17 followers
July 8, 2025
This! This story right here is the perfect example of why I love OV with scent matches/fated mates. I don't care if people complain about the insta-love, insta-lust or whatever else people complain about these days with romance. Katherine did such a fantastic job with this MM OV novella, and I think that I'll be buying a paperback for my trophy shelf. The chemistry between the two just melted my heart, and I loved the "opposites attract" trope. Emerson is the big bad daddy alpha that I adore, and his immediate claiming of Trystan made him all the more lovable. AND the sweet fiesty tortured soul that is Trystan is just adorable. I love his bratty side, and he deserves all the good things. I can't wait to read what this author writes next. <3
Profile Image for Bekki Savage.
71 reviews
July 6, 2025
Therefore by Katherine Isaac – Fun, Steamy, and Fast-Paced (4/5 Stars)

Therefore was a cute and exciting MM omegaverse romance with great pacing and just the right amount of heat. Trystan’s quick wit and Emerson’s intense alpha energy made for an addictive cat-and-mouse dynamic that kept me engaged throughout.

Their chemistry was undeniable, and I loved how their banter evolved into something deeper without slowing the story down. The job’s ticking clock added tension, and the world-building felt fresh yet familiar for omegaverse fans.

4 out of 5 stars. A fast, spicy read with charming characters and a satisfying happily ever after.
Profile Image for Trip .
904 reviews30 followers
October 26, 2025
Our lips met in a hungry clash of teeth and tongue as our scents curled around each other. Vetiver and patchouli. An earthy mix of smoke and spice.

I adored this story it was fast paced, spicy and entertaining in all the best ways. Got to love alternating povs, the chemistry between Trystan & Emerson is stunning. Their first meeting, the push/pull and instant connection despite their situation.

The plot was interesting too, I enjoyed seeing Trystan sneak around and his attempts to get past Emerson. His slow realisation of whats happening due to his holding back of his omega side, I loved that he didn't just submit or fall into what was expected.

Of course the heat is off the charts, plenty of spice along the way but I loved that Trystan fights against it. Wants to do his own thing to start and the conflict as their perspectives don't align.

It's just so much fun to see the back and forth from Trystan & Emerson, as they each have their talents. The action moments were great too, the revelations of the crime and final pieces coming together. It was great to see them work as a pair in the end and how can move forward.

Oh and I loved a bunch of the side cast too, the various work crew with Emerson and Trystans's roommate was lovely. The realisation they can make use of their skills in a better way, able to work alongside each other was perfect.

Anyway this was a great read and had me hooked from start to finish, with a happy ending for Trystan & Emerson ✨

This entire review has been hidden because of spoilers.
Profile Image for DMCechak.
1,790 reviews23 followers
July 6, 2025
Therefore - Changes Aren’t All Bad

‘Our life together would be unconventional, but that thought only excited me more. Trystan brought an exhilarating energy with him whenever we met, brightening my world in every way. He was an entire spectrum of colours in a world of shadowy ink that threatened to consume me once again now that he was gone.’

Katherine Issac’s MM Omegaverse Romance, Therefore, introduces us to Alpha Emerson and Omega Trystan in a most unconventional way!

As a lawyer, Emerson meets his thief when he returns home early. Trystan is absolutely avoiding alphas, going so far as to take suppressants, but Emerson’s scent breaks through because he is meant to be mated to Trystan.

The story develops as does their unique relationship, and each finds out things about themselves that will eventually draw them closer!
35 reviews
October 1, 2025
But Did You Disassociate: Yes

Spice: omega/alpha spicy
MMC and MMC

Omega thief gets caught trying to steal from an alpha lawyer, they find out they are mates and fall for each other
Dual POV
HEA
Stand Alone

Anything pull me out of the book:
Nope

Extra smiles:
Heat
Strong omega
Hurt/comfort
Who restrains who here
Bff’s for the win

It's a fast read that has a great mix of action and spice to keep you wrapped up in the story. The thief is sent to steal evidence but gets caught by the lawyer. But the omega goes into heat and alpha gets all “I will protect you and spoil you for the rest of our lives.” The omega struggles with his identity because of his messed up past but the alpha’s just like: "you're perfect and I love you… but also let me Dom you for sexy times.” It’s great.
Profile Image for Naurarwen.
1,023 reviews8 followers
July 14, 2025
Trystan's job is meant to be simple: get in, get what the client wants and get out. What he doesn't expect is for the owner to come home. What we get with this story is an MM omegaverse, though Trystan is on superpressents, that doesn't seem to matter once his Alpha match scents him.

Emerson is adorable, while he should be angry that someone has broken in, the minute he scents Trystan, he's a goner. The chemistry between the two is fire, even when Trystan tries his hardest to not fall for his Alpha.

It's a sweet story from start to finish and I loved every page. There's insta-love, protective Alpha, and a totally sassy Omega.

Really hoping we get more omegaverse from this author in the future
Profile Image for Stephanie.
330 reviews1 follower
June 28, 2025
Such a sweet story
A little thieving, a scent match, and some spice. This is such a great novella! Trystan's been given a job, steal something from a legal prosecutor. The only problem, he gets caught - and the prosecutor, Emerson, is his scent match. What's a guy to do? If at first you don't succeed.....but Emerson knows what he wants, and it's to keep Trystan. Someone is working in the shadows though to steal that item. And when Trystan has to decide to either betray his alpha or keep himself safe, the choice isn't always easy. The book is action packed, and has some plot twists. Definitely recommend.
Profile Image for Katherine Elley.
554 reviews27 followers
June 29, 2025
M/M Omegaverse
Short story.

Trystan is an omega. He’s been on suppressants for a while so he can’t smell anything.

Emerson is an Alpha and a lawyer. Working on a case.

Trystan is a thief and breaks into Emerson’s penthouse to grab evidence. Get in get out. Simple. During the break-in Emerson turns up and meets Trystan. Trystan goes into heat and they are scent matched.

Loved the characters and the story. Even though it’s a short story it’s fast paced and will have you begging for more. Katherine Issac is a new author to me and I’m looking forward to reading more of her books ❤️
375 reviews3 followers
July 5, 2025
Trystan was a thief and he had broken into a penthouse his current assignment was to get a book. When all of a sudden the owner came home, and he smelled something wonderful. As he found Trystan, Emerson was shocked to realize that Trystan was his scent match. Who was this thief? he had to find out he could not lose Trystan. What was Trystan looking for and why? Who was the client that had hired him. Can Emerson save Trystan? Then Trystan was captured were was he, Emerson had to find his scent match. Come read this wonderful mystery love story.
Profile Image for Rosa Dunahue.
1,352 reviews25 followers
July 21, 2025
Therefore is an incredible mm Omegaverse. What would you do if you walk into the middle of not only a crime scene but your home, that is exactly what happened to Emerson. Emerson is lawyer who catch not just an omega but his scent match. Trystan does anything to survive by omega. But he did expect his biggest problem would be an alpha and his scent match from his last job. Their chemistry is amazing and the ride they carry us on is a quick and satisfying read. This is one book you will read completely in one sitting.
Profile Image for Jenn.
250 reviews2 followers
June 27, 2025
This one will go down as one of my favorite MM omegaverses. Trystan and Emerson were so fun to get to know. Their story was perfect. What may have started off rocky (theft & handcuffs-or maybe not), turned into a wonderful story about an Alpha who falls head over heels for his omega and will do whatever it takes to claim him and keep him happy. If you’re looking for spice, omegas, alphas and a fun quick read don’t pass this one up!!
Profile Image for Miss E.
596 reviews
June 29, 2025
In just 151 pages, KI manage to write a story that is both filled with action and a lot of love.
Both Trystan and Emerson are wholesome, flawed characters, wo compliment each other so well.
I read this in one setting (I know, it's a short read). And while this feels both like a breeze (it's a page turner for sure) and like it was much longer, it is simply just right!
This is very well done and absolutely worth your time.
Profile Image for Sara Husser.
373 reviews7 followers
June 30, 2025
An Alpha Lawyer And An Omega Thief

This was a shorter Omegaverse book but it was so good. This was a different take on Omegaverse. Trystan was an omega who was a thief and one of his jobs was to steal something from Emerson, who turns out to be his scent match Alpha. Even though this was a shorter story, it packed a punch and had a great plot. The characters were fleshed out well and I loved their chemistry. A very good read and I highly recommend.
Profile Image for Laci  Steimel.
694 reviews6 followers
July 2, 2025
This was an absolutely delicious read! I love how Emerson automatically goes into alpha mode for his little thief! There was so much steam, I almost combusted. It was so deliciously done! I also loved Bee and Norah! Great secondary characters that had me laughing. Trystan had me feeling for him the entire book, and I was so happy when he finally gave in and accepted that he had an alpha. Amazing plot twist that kept the suspense going! Such a great read, I loved this whole book.
Profile Image for Maureen.
503 reviews8 followers
July 4, 2025
This is a standalone MM Omegaverse, and quickly headed straight to my don't read at work list.

Emerson and Trystan's chemistry is off the charts, right from the moment they meet. They are as opposite as you can imagine, and work really well together.

The plot ties up nicely and although this is a stand alone book, there's some of the side characters I'd love to see more of.

Overall, fun and steamy read.
Profile Image for Ashley.
381 reviews3 followers
July 5, 2025
Emerson and Trystan were a pretty cute couple. I kinda loved watching Emerson - it was cute seeing him be both a cocky alpha and a little insecure in places. I also loved Trystan's fight and his dilemma. I think a lot of OV books push a very stereotypical omega and Trystan didn't really fit that bill. The plot was actually my favorite part. Finally putting the pieces together was fun and I liked the way the story unfolded.
Profile Image for Katelyn Livezey.
Author 1 book11 followers
July 6, 2025
Standalone
MM
Omegaverse
Thief/Lawyer

Trystan is an omega and is a thief. His current assignment lands him breaking into a penthouse to look for a book… When the owner comes home unexpectedly and catches him, Trystan smells something wonderful. Turns out the owner is his scent match- an alpha lawyer, Emerson. There’s plenty of spice. The two go perfectly together and Emerson isn’t giving his omega up for anything. Read it to find out the full story behind these two!
Profile Image for Lexi.
1,012 reviews19 followers
July 21, 2025
Trystan and Emerson We’re such great and fun characters. Their cat and mouse relationship had me wanting more and more. I do wish this had been longer since I wanted to spend even more time with these characters. It’s got the scent match trope which I enjoyed a lot. I didn’t want to stop reading about these ones and enjoyed this world a lot. Get ready for a great quick hot read. Definitely well worth the time and so much fun.
Profile Image for Rebekah Tomkinson.
464 reviews3 followers
July 28, 2025
Therefore has been one of my favourite reads so far this year. I loved the banter between Trystan and Emerson and their whole dynamic was just fun and lovely to read.

I’m not the biggest fan of OV but I do love Katherine’s world writing and how she develops characters. This was a novella so it was fast paced but it didn’t lose anything with being on the shorter side. There was still plenty of heat, drama and spice!

Definitely recommend if you’re looking for a hot little read.
Profile Image for Shelba.
2,693 reviews99 followers
August 14, 2025
It started out promising enough, but we zipped through the first half of the book without a whole lot actually happening.

The plot with the diary was very predictable, and the conclusion very rushed.

Also, the amount of times the scents of the MCs were described and how they were described, were countless.

I probably wouldn’t bother with this author again, just overall meh. It is my second attempt at the author, though I don’t even recollect a single detail about the first try.
Profile Image for Amber.
203 reviews
June 24, 2025
This book is spiccccy. The relationship between Emerson and Trystan starts with a bit of dubcon but soon blossoms into a lovely alpha/omega pairing. I love the characters and the fast pace are wonderful though I have to say my favorite character, bar none, is the non-binary Bee. They're spectacular. Can't wait to read more by this author! 
700 reviews
June 27, 2025
First time reading something my this author and I really liked it. MM omegaverse. Alpha is a lawyer and the omega is a thief for hire. The lawyer has something that somebody wants and that somebody asks the omega to steak it for them. Interesting dynamic and original story. Short enough to read in a day and the plot was a nice twist.
Profile Image for Micki-D.
1,324 reviews37 followers
July 2, 2025
Sweet little MM omega verse love story with some spice Trystan's been given a job he is to steal something from a legal prosecutor. Things don’t go as planned when he gets caught, then they go way off plan when the prosecutor.. Emerson is his scent match.

What will happen from here?
Will he get in trouble?
Will he stay with his match?
924 reviews3 followers
July 3, 2025
Katherine gives us a wonderful standalone book!! Trystan and Emerson are going to steal your hearts and minds on the way to their HEA! Dive into this beautifully written book with complex characters and plot twists that keep you turning pages throughout to find out how they get there. I loved reading this story and highly recommend it. Don't miss out on this short, spicy book!!
2,600 reviews15 followers
July 4, 2025
Omegaverse MM and while I usually don't care much for MM this was a nice one with the omega being a thief and the alpha a prosecutor. Imagine his surprise the thief being his scent match. Really enjoyed reading this and how the two come together. There's twists and turns I loved and keeping you on the edge of your seat.
Displaying 1 - 30 of 55 reviews

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