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Rosa Lucas
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Fighting Mr. Knight: A Billionaire Office Romance (The London Mister Series Book 3) Kindle Edition

by Rosa Lucas (Author) Format: Kindle Edition
4.5 out of 5 stars 15,413 ratings

This arrogant playboy treats London like it’s his Monopoly board. But I’m not going to play by his rules…

Billionaire property tycoon Jack Knight is propping up the UK rich list and keeping the national tabloids ablaze with his scandalous love life. And making my life hell.

To him, I’m just another architect in a small design firm bidding for his latest prestigious project.
To me, he’s a ruthless businessman who plays people like pawns. I should know.

I’d rather work for Satan on designing Hell than have to answer to him.
But sometimes dream jobs come with insufferable bosses.

I hate that I have to see his signature arrogant grin every day.
I hate that when Jack Knight says jump, we grab our long poles.
I especially hate the undeniable explosive heat growing between us.

Fighting Mr. Knight is a standalone, steamy, dual point-of-view office romance with a hot-as-hell, brooding CEO and a sassy, witty heroine.

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  1. Book 3 of 3
    The London Mister Series
  2. Print length
    431 pages
  3. Language
    English
  4. Accessibility
    Learn more
  5. Publication date
    November 17, 2022
  6. File size
    2.4 MB
  7. Page Flip
    Enabled
  8. Word Wise
    Enabled
  9. Enhanced typesetting
    Enabled
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There are 3 books in this series.
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  1. You’re an idiot, mate. You gave up the best thing that ever happened to you for a fling with an intern.
    Highlighted by 440 Kindle readers
  2. Men like him get pissed when their pawns don’t move around the board as they order. What they forget is that if a pawn moves fast enough, she becomes a queen.
    Highlighted by 421 Kindle readers
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From the Publisher

Billionaire office romance

Product details

  • ASIN ‏ : ‎ B0BBB7VQFM
  • Accessibility ‏ : ‎ Learn more
  • Publication date ‏ : ‎ November 17, 2022
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 2.4 MB
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Enabled
  • Word Wise ‏ : ‎ Enabled
  • Print length ‏ : ‎ 431 pages
  • Page Flip ‏ : ‎ Enabled
  • Book 3 of 3 ‏ : ‎ The London Mister Series
  • Customer Reviews:
    4.5 out of 5 stars 15,413 ratings

About the author

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Rosa Lucas

Rosa Lucas

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I’m Rosa, a contemporary romance author based in the UK.

I love crafting stories about strong, sassy heroines who aren’t afraid to speak their minds. These fierce ladies are paired with alpha heroes who are as rugged as they are emotionally guarded.

I have a weakness for specific tropes, such as billionaire alphas with egos the size of their bank accounts, age gap romances that show love defies age, workplace romances that give “office politics” a whole new meaning, enemies-to-lovers stories that make you want to lock the characters in a room until they sort out their feelings, and grumpy-meets-sunshine matchups proving that even the most brooding of men can melt with the right woman by their side.

When I’m not lost in my writing world, you can find me roaming the countryside with my own Happily-Ever-After guy (who refuses to read my books, likely worried he’ll see himself in them, or even worse, not see himself at all) looking for a great hike with a pub at the end.

My books are available in English, German and Polish. Coming in French and Portuguese 2025

Customer reviews

4.5 out of 5 stars
15,413 global ratings

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Customers say

Customers enjoy this romance novel for its strong love story with dramatic twists and turns, featuring well-developed female characters and explosive chemistry between Jack and Bonnie. Moreover, the book receives praise for its humor that makes readers laugh and cry, its steamy scenes, and emotional content that resonates with readers. Additionally, customers appreciate the writing style and find it an exciting read.

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StorylineCharacter developmentFun to readHumorWriting styleSteamy contentEmotion levelChemistry
69 customers mention "Storyline"66 positive3 negative

Customers enjoy the storyline of the book, describing it as a strong love story filled with drama and twists and turns. One customer particularly appreciates the dual POV storytelling approach.

"...Such as a red period and different text colors. Story was good but I wished there was more groveling" Read more

"...Jack Knight is a dream. Bonnie is adorable. The story was interesting." Read more

"This was so fun and sweet, forgiveness, love, vulnerability and understanding self-worth. This was my favorite of the 3 books" Read more

"Great story!! Jack is such a prize since he is a billionaire and single! Bonnie is just the girl he needed!" Read more

31 customers mention "Character development"31 positive0 negative

Customers love the characters in the book, particularly appreciating the strong female characters, with one customer noting the easy flow between the main characters.

"Great story. Easy and fun read. Great characters development. The story is told well and moves along well...." Read more

"...One of the strongest female characters I’ve seen developed in a smut book." Read more

"Great characters, Great location. I enjoyed everything about it. Lucas books are a lovely escape, I just wished there were more of them!" Read more

"I love the development of the characters!! Thank you so much for this fun book!! I can't wait to read another one!" Read more

21 customers mention "Fun to read"21 positive0 negative

Customers find the book fun and exciting to read, with one customer noting it's light reading perfect for evening entertainment.

"...Their back-and-forth is sharp, full of tension, and had me hooked. Bonnie’s a little awkward but so easy to love, and Jack doesn’t stand a chance...." Read more

"This was so fun and sweet, forgiveness, love, vulnerability and understanding self-worth. This was my favorite of the 3 books" Read more

"Great story. Easy and fun read. Great characters development. The story is told well and moves along well...." Read more

"...will continue to write more romance stories because they are a joy to read." Read more

20 customers mention "Humor"20 positive0 negative

Customers enjoy the humor in the book, with some mentioning it made them laugh and cry, and one customer noting how the writing brings out emotions.

"...The humor, the tension, and the messy emotions gave me major Bridget Jones’s Diary vibes in the best way...." Read more

"...There's still hilarious sitcoms between Jack's buddies, Danny and Tristan😂. Bonnie doesn't disappoint with friends...." Read more

"...There are so many great lines and laughable moments in this book. Both main characters are pretty funny. And very likeable...." Read more

"Oh this was cute, funny and witty. My version on my KU app was a little wonky but didn't detract from the story...." Read more

16 customers mention "Writing style"16 positive0 negative

Customers appreciate the writing style of the book, with one noting it is easy to read.

"Good writing and good storytelling...." Read more

"...One unbelievable writer, R. Lucas does it again...." Read more

"...Well..she ( Rosa Lucas ) writes. And boy, does she write well! I’ve read all three books from the Mister series...." Read more

"...Overall: 4/5 Writing: 5/5, good writing style Characters: 3.75/5 Spice: 🌶️🌶️.75/5..." Read more

14 customers mention "Steamy content"14 positive0 negative

Customers enjoy the steamy scenes in the book.

"...Theor chemistry is sizzling hot and they’re so perfect for each other. UGH...." Read more

"...Hihgly recommend for great storylines, love and steamy scenes." Read more

"Loved the story line and the characters. There was plenty of spice to keep things hot!! 🌶🌶🌶🌶 looking forward to the next book...." Read more

"...And very likeable. They are also very steamy together. Fantastic story. I loved it." Read more

12 customers mention "Emotion level"12 positive0 negative

Customers appreciate the emotional depth of the book, with one customer noting how they could relate to the protagonist's feelings throughout the story, while another describes the ultimate love as heartwarming.

"...The humor, the tension, and the messy emotions gave me major Bridget Jones’s Diary vibes in the best way...." Read more

"...Their story id's so beautifully written filled with so much h emotion and heart!..." Read more

"...Heartbreak , mysteries. How does Jack and Bonnie have time to experience such love-making🤔..." Read more

"The description of gorgeous Jack as the ultimate love was heartwarming...." Read more

8 customers mention "Chemistry"8 positive0 negative

Customers enjoy the chemistry between Jack and Bonnie, with one customer describing them as explosive together.

"...Their chemistry is fire, and the buildup makes the payoff even better...." Read more

"...not a fling which surprise her plus their chemistry was amazing to read and imagine...." Read more

"...Loved the chemistry and the banter between the 2 mains. I read this one first and didn't feel as if I missed anything by not reading the others...." Read more

"...You won’t be disappointed! Read it! I really love Jack and Bonnie’s story. When it’s right it’s right. TRUST is everything! ♥️" Read more

Top reviews from the United States

  • BooksAreMyTherapy
    5.0 out of 5 stars Best Book of the Series
    Reviewed in the United States on February 12, 2025
    Verified Purchase
    Fighting Mr. Knight might just be my favorite book in the London Misters series. Bonnie is an architect working toward a promotion, but there’s one major problem—her direct boss is also her ex-fiancé. Navigating that tension is hard enough, but when their firm lands a project with the powerful Lexington Group, things get even more complicated. Enter Jack Knight, the billionaire playboy Bonnie has no patience for.
    Jack has had feelings for Bonnie for a long time, but she has plenty of assumptions about him and isn’t impressed by his wealth or reputation. Their back-and-forth is sharp, full of tension, and had me hooked. Bonnie’s a little awkward but so easy to love, and Jack doesn’t stand a chance. Their chemistry is fire, and the buildup makes the payoff even better.
    The humor, the tension, and the messy emotions gave me major Bridget Jones’s Diary vibes in the best way. The side story about Jack’s dad added depth, but that third-act breakup? Brutal. One of those moments where you see the train wreck coming but can’t do anything to stop it. Still, the way everything comes together in the end made it worth it.
    This book had me laughing, swooning, and wanting to throw my Kindle at least once. Definitely a must-read for anyone who loves a billionaire romance!

    ᪥ Billionaire
    ᪥ Boss/Employee
    ᪥ Hidden Relationship
    ᪥ Reminds Me of Bridget Jones
    ᪥ Dual POV
    2 people found this helpful
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  • Kindle Customer
    4.0 out of 5 stars typos but good
    Reviewed in the United States on April 13, 2025
    Verified Purchase
    Good book but the kindle edition has typos that should have been caught. Such as a red period and different text colors. Story was good but I wished there was more groveling
    One person found this helpful
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  • Suechef
    5.0 out of 5 stars Mr. testosterone!
    Reviewed in the United States on May 16, 2025
    Verified Purchase
    It’s a good read. I wasn’t bored at all. Jack Knight is a dream. Bonnie is adorable. The story was interesting.
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  • Mamaari
    5.0 out of 5 stars yes
    Reviewed in the United States on May 14, 2025
    Verified Purchase
    This was so fun and sweet, forgiveness, love, vulnerability and understanding self-worth. This was my favorite of the 3 books
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  • BShafii
    5.0 out of 5 stars Jack
    Reviewed in the United States on May 8, 2025
    Verified Purchase
    Great story!! Jack is such a prize since he is a billionaire and single! Bonnie is just the girl he needed!
    Helpful
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  • Y-Factor
    3.0 out of 5 stars Unlikeable FMC
    Reviewed in the United States on January 8, 2025
    Verified Purchase
    Good writing and good storytelling.

    I've read the reviews before I started, and it was clear that a lot of readers had a huge problem with the FMC - I still decided to give Bonnie the benefit of the doubt. However, after reading the book, I can honestly say I have never disliked a FMC as much as I disliked Bonnie.

    I will never understand why authors ALWAYS write FMC's as characters that are desperate to be with a man, any man. Seriously, people, this is modern times, and women can and do take care of themselves. But, Bonnie...

    Spoilers ahead.

    There's this scene where Bonnie had been having lustful thoughts about Jack (the MMC) but almost jumps out of her skin from excitement because she thought her ex was making up with her - this after 6 months of the relationship being over, and him having moved on with someone else. She came across so desperate that it was pathetic and embarrassing to read. Then, instead of telling her that he wants her back, her ex informs her that he is moving on with the other woman. And what does Bonnie do? She falls apart so dramatically that she shows up late for an important meeting and does not listen to a word of what is being said. To add insult to injury, she does not accept responsibility for her actions following Jack kicking her out of the meeting. Oh, no, not Bonnie. She goes on to behave like a total brat, insisting that she was treated unfairly. Then, she gets drunk at a work function and refuses a lift home because she can "take care of herself." But wait, there's more: At the 60% mark, we find our FMC still pining over the ex while at the same time lusting after Jack, and this after having gotten frisky with Jack on a few occasions leading up to this point. But, still more, she finds out more than 6 months after their breakup that the ex has been cheating on her throughout their relationship, so she wants to confront him. Grow up woman! The relationship ended some time ago and he moved on! And don't get me started on her loyalty to her criminal, good-for-nothing dad - I don't even want to go there. My biggest issue with her, however, must be that she kept important information from Jack when it was not necessary to do so.

    I don't know what Jack saw in her but, alas, he loved her, and she managed to somewhat redeem herself in the end.
    7 people found this helpful
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  • Amazon Customer
    4.0 out of 5 stars Geography needs some correction…
    Reviewed in the United States on April 16, 2025
    Verified Purchase
    One small correction: Svalbard and Norway are in the Arctic, not the Antarctic. Otherwise I really enjoyed the book. The whole series was enjoyable.
    One person found this helpful
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  • Melanie Dunlop
    5.0 out of 5 stars ok a 5
    Reviewed in the United States on May 7, 2025
    Verified Purchase
    My only comment is that it’s too short. Add in more of the drama because you are a great writer
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Top reviews from other countries

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  • Endless reader
    5.0 out of 5 stars A must read
    Reviewed in the Netherlands on January 11, 2023
    Verified Purchase
    From Rosa's first book: Taming Mr. Walker, through Resisting Mr. Kane and now Fighting Mr. Knight I have fallen for her story's and her writing. I like the POV way of story telling. Fighting Mr. Knight is a steamy, swoon and funny story. Jack & Bonnie fall hard for each other. I loved the twist near the end of the book. I find that Rosa's writing is getting beter and beter so I can't wait for Rosa's next story.
    Report
  • Garima
    5.0 out of 5 stars Great read
    Reviewed in India on March 4, 2023
    Verified Purchase
    The 3rd & final book of the series is the love story of Jack Knight, CEO of The Lexington Group (property developer) & Bonnie Cassey, an architect. Their path collides when Bonnie’s company is tasked with design & overall work for a new project for Jack. The storyline is slightly different from the other two books – past murder, intrigue & the other usual stuff all packed in seamlessly. This one too has witty banter, sarcasm weaved into the conversation.

    After reading all three books I discovered a few things about the author –
    1. her narration is laced with wit & sarcasm which makes it a fun read
    2. she has taken time to develop the storyline and character
    3. female protagonists are witty & strong

    So far, she has written – 3 + 1 (expected release 30th April) so she relatively new author. I Look forward to reading her next novel.

    It’s part of KUL & a definite download & read book. Please read it in sequence as all three friends & their partners find a mention in each other’s story. Also, in the epilogue you get a peek into the married life of each which is nice. Happy reading.

    Book.1 Taming Mr. Walker: Danny Walker & Charlotte Kane
    Book 2. Resisting Mr. Kane: Tristan Kane & Elena Aldric
    Book 3. Fighting Mr. Knight: Jack Knight & Bonnie Casey
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  • Alejandra Falomir Kelly
    5.0 out of 5 stars loved it!!!!
    Reviewed in Mexico on February 20, 2023
    Verified Purchase
    Jack is the sweetest guy!!
    I’ve read all three books and the rating is like this:
    1. Best chemistry: Danny and Charlie
    2. Best characters: Jack and Bonnie
    3. Best book: Danny and Charlie
    I like Jack best because he is more easy going, sweet and down to earth than the other two. Danny was very serious and Tristan was just… in need of therapy.
    Bonnie is truly the most mature lead. She has an interesting background and is pretty stable even if she has been recently left by his ex-fiance. Charlie is the funniest though.
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  • LUCIA DE GARNICA
    5.0 out of 5 stars Muy entretenido, mantiene la emocion durante toda la lectura.
    Reviewed in Spain on January 2, 2023
    Verified Purchase
    Facil de leer y te atrapa
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  • Alexandra Holland-Wright
    5.0 out of 5 stars London Mister
    Reviewed in Australia on February 17, 2025
    Verified Purchase
    I loved this series! I read all 3 books in 2 days! Not kidding. I haven’t laughed so much in a long time! The wit, banter, angst, push and pull of the couples, honestly couldn’t put them down!
    Enjoyed them immensely.
    Report

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