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Castle Sin, Book 5 – Parker, is an edgy, fast-paced, dark BDSM suspense novel. A tale of love woven with deceit, lies, and corruption.

Castle Sin
Seven Masters
Seven Dungeons
Seven Times the Kink

“It’s going to be a pleasure peeling back each layer to find what’s driving you, and once I have … to put you back together piece by piece until the submissive emerges who will beg to be dominated by me.”
Parker Sinclair didn't have a mother to teach him about love, but he had a big brother who taught him to be comfortable with his emotions. The day he found HER in the exclusive BDSM Club Alpha Cove in New York, her fate was sealed. Determined and ready for his forever love, Parker would stop at nothing to make her his. Like his spirit animal, the tiger, he had patience and nothing would stand in the way of what he was hunting … her heart.

“Let me go, you degenerate asshole!” It was a fight for survival … of her senses that she was sure had lost all sagacity of self-preservation.
Ava Harper ran away from home when she was fifteen, and because of her past, she didn't believe in love ... didn't know HOW to love. Until HE walked into her life. She thought she was happy with her life and didn’t want for anything … a man least of all. But he proved that her need far outweighed her want while systematically unshackling the chains that bound the woman and the submissive deep inside her.

Caught in a maelstrom of violence and corruption, the two lovers fought to keep each other and their loved ones safe as they realized that challenging fate was a losing battle.

And this time … fate struck hard.

Editor’s Note:
Parker makes me want to say, “String me up like one of your submissive girls.” Get comfy, prepare yourself for highs and lows and more highs and perhaps have a hand free because this story is HOT! From rope play to a special treasure hunt to two hot Doms at once ((I need a fan))… Parker will have you squirming in your seat and actively seeking a man to call Sir and who will call you Cherub.

642 pages, Kindle Edition

Published May 11, 2020

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About the author

Linzi Basset

145 books820 followers
Author pseudonyms - Isabel James, Kimila Taylor

“Isn’t it a universal truth that it’s our singular experiences and passion, for whatever thing or things, which molds us all into the individuals we become? Whether it's hidden in the depths of our soul or exposed for all to see?”

Linzi Basset is a South African born animal rights supporter with a poet’s heart, and she is also a bestselling fiction writer of suspense filled romance erotica books; who as the latter, refuses to be bound to any one sub-genre. She prefers instead to stretch herself as a storyteller which has resulted in her researching and writing historical and even paranormal themed works.

Her initial offering: Club Alpha Cove, a BDSM club suspense series released back in 2015, reached Amazon’s Bestseller list, and she has been on those lists ever since. Labeling her as prolific is a gross understatement as just a few short years later she has now been published over a hundred times.

“I write from the inside out. My stories are both inside me and a part of me so it can be either pleasurable to release them or painful to carve them out. I live every moment of every story I write. So, if you're looking for spicy and suspenseful, I'm your girl... woman... writer... you know what I mean!"

Linzi believes that by telling stories in her own voice, she can better share with her readers the essence of her being: her passionate nature; her motivations; and her wildest fantasies. She feels every touch as she writes, every kiss, every harsh word uttered, and this to her is the key to a never-ending love of writing.

Ultimately, all books by Linzi Basset are about passion. To her, passion is the driving force of all emotion; whether it be lust, desire, hate, trust, or love. This is the underlying message contained in her books.

Her advice: “Believe in the passions driving your desires; live them; enjoy them; and allow them to bring you happiness.”

Find her also on amazon.com/author/isabeljames in a collaboration of emotional and spiritual tales of discovery written in rich prose.
Click on her website at: https://linzibasset.com/ where you will find upcoming information about new releases, and excerpts from her books. Subscribe to her newsletter and join her on Twitter @LinziBasset or say hello on Facebook.

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5 stars
127 (73%)
4 stars
37 (21%)
3 stars
8 (4%)
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1 (<1%)
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Displaying 1 - 29 of 29 reviews
Profile Image for Kelly_Reads_Books.
2,146 reviews197 followers
May 8, 2020
I absolutely loved Parker's story!
Parker is one of the cousins in this series and he has set his sights on his cherub. After one hot and heavy night together in the club he issues his command of no one being able to satisfy her after being with him. This starts the quest on finding Parker, and what a sensual quest it is.
These Castle Sin stories are exotic and sensual with a wonderful helping of espionage and drama. But Linzi, that ending?!? WOW!
Next I hope to hear Danton's story!
1,854 reviews38 followers
May 12, 2020
Let me start off by saying that after I read this book, I was and still am an emotional mess. But as I have said before, that just shows to me how incredible a story is. As I have read each book in this series, I always wonder how it's possible that each book gets better and better. All I can say is this author continually proves to me each and every time why I love her books. This time it's about Parker aka Master Tiger. He becomes enamored with Ava, a tough,smart little spitfire submissive who shares a love for technology with him. But it appears she needs to be tamed a bit by the big, bad Dom and Parker seems to be the one who can do the job. When he set his sights on her, all bets were off. Ava has always been a bit standoffish and private as her past has shown her love doesn't exist, and she finds it hard to open up to others, but can Parker change her mind? When an outside force threatens Ava, Parker will do anything to protect her and convinces her to let him help her.

I can't say enough how much I love these characters. They are absolutely perfect for each other and I enjoyed their interactions throughout. This is not your typical BDSM story, there is so much more to it. I think that's why I love this book and series so much. It has mystery and intrigue mixed in with lust and love, and you can't help but get invested in all of the characters. Also, with each story more comes to light that will have your head spinning! I can't express how much you need to read this book and series. Each one holds you captive from beginning to end, and this one totally blew me out of the water!
Profile Image for Ida Jolley.
739 reviews16 followers
May 13, 2020
I really am not sure where to start my review after reading Parker. I think I am still blown away. This book was freaking fantastic. I think the best one yet from the Castle Sin series. First there’s Parker, every woman’s dream guy. He’s super alpha, sweet, caring, loving to the max. He’s also very dominant dealing with his sub Ava. God I would like to be in her shoes.
Ava is a smart, sassy, strong female who caught his eye at the club and she definitely got his attention. She’s not afraid to stand up to him but does it knowing she will get a reaction out of him, and boy does she. And I love her playfulness. Even when it’s going to cost her.
The author is so good at describing exactly what is happening in the book. And is very knowledgeable about what she writes about. This makes it so enjoyable to read because you can a good visual in your mind as to what’s going on. An example is the Kinbaku scene. That was amazing, so descriptive, and interesting. With everything going on in the story, you are involved completely with the characters. And in this book you are on the ride of your life.
It’s suspense, a love story, some twist and turns you don’t see coming. But it will definitely hold your attention because it is that awesome. A phenomenal read by Linz, her best in my opinion, 5 stars isn’t enough to rate this book. I highly recommend this book to those who need a little excitement and enjoy her books. ❤️💜❤️
Profile Image for Margaret Center.
284 reviews1 follower
May 7, 2020
Parker, quiet but serious... one would think that he locked his heart to any emotional attachment when you first meet him in earlier books...He is the younger brother of Stone, feels he wants that connection, the 'ONE' ... Enter's Ava Harper, mysterious, who is she... will she open up to someone wanting to care for her - she has been on her own, she is strong and independent, never having anyone make decisions for her, she comes from hard times, bad situations. Parker's life wasn't easy coming up into adult hood, his brother raised him, taught him it's ok to feel and show his emotions... He is as protective as the rest of Castle Sin Master's of his family, friends and business. This is a hot, fast and emotional read. Be sure to have your tissues handy; You're going to get all the feels in this book.
Profile Image for Melanie.
4,274 reviews35 followers
May 12, 2020
Parker is Linzi Basset's most ambitious Castle Sin series book to date. It's captivating as the race to avoid an overthrow of the government and life as we know it plays out. Corrupt highly placed officials, notorious assassins, spies and terrorist sleeper cells interwoven around Ava Harper and Parker Sinclair's love story. The suspense will keep you on the edge of your seat and the intrigue is powerful, the action is hard hitting and fast paced and the BDSM scenes almost set the pages on fire.

Parker AKA Master Tiger set his sights on Ava Harper and never looked back. He knows all her secrets and there's nowhere to hide. Ava never expected to find someone to love let alone be loved. Parker pushes every one of her buttons and holds her in his thrall as he Masters her in the best way possible. Ava is, at best, a recalcitrant submissive and gives her Dom a run for his money at every turn.
Profile Image for Kat.
179 reviews
June 4, 2020
Let me say right off the bat ... this is another spell-binding entry into the lives of the uber Alpha Master Doms and the strong subs who love them at Club Sin. Always pushing boundaries and finding more pleasure!
That said, I just cannot say too much more about this action-packed book without including spoilers, which I refuse to do. You have to read it for yourself - although I suggest you start with the 1st in this particular series (Stone (Castle Sin Book 1), even though this can be read as a stand-alone.
I highly recommend this book .... just be prepared!!
Profile Image for Erin.
3,547 reviews80 followers
May 13, 2020
VERY VERY THRILLING!

OMG! This series keeps getting more intense, more suspenseful and more thrilling with each book! I was completely and utterly riveted to my seat with so much anxiety over what was going to happen next to the Sinclair family!

This story is filled with edge of your seat action, surprises and twists, unbelievable terrorism, corruption and murder, throw in some mind blowing sex scenes, a few bombs, a MASSIVE cliffhanger ending and we have one hell of a story, not to be missed!

Parker's story is deep, raw and very emotional. He is so full of passion and love that he had me craving him hook, line and sinker. Parker is smart, witty and so very sexy but so is Ava! The very sexy love story between Parker and Ava is intense and their chemistry is undeniable. At times their passion and love with set your kindle on fire!

"It's going to be a pleasure peeling back each layer to find what's driving you, and once I have ... to put you back together piece by piece until the submissive emerges who will beg to be dominated by me."

WOW! You can just feel the power and passion oozing from Parker's words to Ava!

This story is exciting, thrilling and highly entertaining. This amazing author is not holding anything back (except what the hell is going to happen next)! Phenomenal writing as always! Highly recommend.
134 reviews2 followers
May 13, 2020
Parker or Master Tiger has proven to be my all time favorite of the Masters of Castle Sin. This man stole my heart with his dominating and over protective ways but his absolute honesty with his feelings for Ava is what really did it. After looking for years for the right woman and sub who will be able to keep up with him in and out of the dungeon, he runs across Ava, code name Dancer, who is a cyber spy for several government offices. He knows with just one meeting she is the one for him, to make him happy and give him the life and family, he has always dreamed of.

Ava has been on her own so long she doesn't think she needs anyone in her life but after her first encounter with Master Tiger she realizes their is something there, a spark she has never felt with anyone else. Can he be her soulmate? Is that really a thing? Or is he going to use her for her special skills on the computer? With her past can she trust anyone with her whole life?

The dark and twisted emotional tale of these two people will pull at your heart strings and give you faith in a absolute, all consuming love. It will leave you with all the feels you can possibly hold and a renewed respect for the Dom/Sub relationships they have.
Profile Image for Jen ODonnell.
236 reviews7 followers
May 14, 2020
Parker is a hot, sexy, thrilling, heart pounding adventure. Parker meets his soulmate/ His Cherub in Ava Harper. These two together bring so much heat that the pages just light and ignite with every word. There is also so much going on: Action, excitement, tears, joy, love and so much more. This series has been beyond words since the beginning. You are kept guessing on who you can trust, and the scenes between Dom and Sub are full of passion, connection and bonding as one. There maybe some surprises along the way, you never know what will happen next. You will be on the edge of your seat, that you cannot put this down. Linzi Basset is an exceptional Author and her writing is off of the charts. Everytime you read one of her books, you love everything about them. You will love and cherish Parker and Ava's story as much as I have. I cannot recommend this enough. A must, must, must amazing and blazing read.
760 reviews7 followers
May 13, 2020
Parker is a no holds barred Dom. Ava is a hidden submissive who chooses to top from the bottom whenever possible. When she is caught playing her games, Parker is chosen to administer the punishment, and he is sadistically happy to do so. Can he be the strong Dom she has been searching for? Will he see what her soul is searching for? Can he help her find it?

In addition to the scintillating erotic lust and kink, this is a very exciting and intriguing story. We are exposed to government collusion, a secret organization, Russian mob activity, the dark web, espionage, assassins, and more. My mind was constantly wondering what would happen next! Who are the actual good guys? Will our Sinclair clan and their subs remain safe? Will Parker and Ava find a way to satisfy each other?

This book is absolutely worth reading every single word!
Profile Image for Laiba Malik.
509 reviews
May 16, 2020
Linzi Basset does not disappoint her readers with Parker. I'm in awe at Linzi's portrayal of Ava's and Parker's relationship. How she gradually adds darkness, mystery and love in her novel.

It's simply mindblowing how she manages to combine BDSM and politics at the same time without making the storyline cliché and boring.

This book totally blew me away and I can't wait to read more such books from the author.

Profile Image for Jay Williams.
243 reviews1 follower
May 13, 2020
We are back at castle sin and focusing on Parker, Parker is a man comfortable with his emotions and when he set his sights on someone he always got them, and he is ready to settle down with his forever love and he wants Ava.
Ava was a teenage runaway who doesn't believe in love or happy endings we she find it with Parker? Well that remains to be seen. well mind blowing steamy sex is one thing that they happen to find. The story is an emotional roller coaster and will have you all over the place. In true Linzi style it is fully of suspense, twists and turns, making it a fantastic read each book gets better and better bring on book 6
Profile Image for Sue.
422 reviews4 followers
May 13, 2020
Couldn’t sleep after reading this one! Ever read a story in which you became so emotionally invested that you felt something shatter as you return to reality? This is that series and in particular that is this book. Nothing outside the pages seemed to matter which makes this a perfect quarantine read! Suspense, romance, sizzling chemistry, intrigue, and a storyline to make you wish for a Castle Sin Master of your own. Who knew the geeky brother could be so hot! Wow - just need a cold shower Wow!
Profile Image for Chasity.
688 reviews8 followers
May 14, 2020
Parker and Ava’s story blew me away. I’ve waited a day and a half to write my review but I’m still at a loss for words. This entire series has been amazing but this book blew the others out of the water. In my opinion this is Ms. Basset’s best book to date. The suspense, intrigue and heat will take you on a journey that you won’t want to end. The very last part of the story will leave you gasping and needing the next one.
Profile Image for Dana Fernandez.
472 reviews15 followers
May 12, 2020
Linzi has done it again! I absolutely loved this story. Parker is a powerful Dom who has set his sights on Ava. She on the other hand needs a little more convincing. Ava has been on her own for so long but can Parker convince her that he’s all she needs? Will the submissive in her be able to submit to the Masterful Dom he is? This suspense alone will have you on the edge of your seat. Highly recommended this book and author.
Profile Image for Rose Howse.
914 reviews15 followers
May 12, 2020
OMG! Castle Sin book 5 is the BOMB! Yes, there are some
bombs in here too, but there is also love and tears, sex, kink
danger and quite a few shocking surprises.
I CAN'T WAIT UNTIL CASTLE SIN #6 COMES OUT!!!!
Profile Image for KittyLuvr.
602 reviews47 followers
May 19, 2020
Once again Ms. Basset brings her remarkable talents for writing to her waiting audience.
Castle Sin is a wonderful series & each one is excellent in writing, sensuality, sheer lust, suspense, danger & of course, love. But it wouldn't be a Castle Sin story without a delightfully erotic journey for the H/h to travel on their path to any potential HEA.
And, as always, Ms. Basset doesn't disappoint. Her stories are so wonderfully complex & layered, the reader is given a glorious repast of dishes: erotic encounters & D/s BDSM scenes that will curl your toes, have you bite your lip & wish most intensely to be part of the action; intelligent & fascinating political & cyber intrigue that keeps the reader guessing & on tenterhooks; characters the reader wants to know & indeed comes to know & CARE about.
Parker & his Cherub, Ava, are a H/h the reader is invested in, concerned for & about, that the reader heartily ROOTS for to overcome the dangers & travails in their path & reach a HEA together.
Master Tiger (Parker) is refreshingly clear & fine with realizing he's found his 'one' & knows he has to breach Ava's emotional defensive walls. And nothing will sway or deter him. And Ava, dependent on only herself since her mid-teens, trusting only herself, realizes that maybe, just maybe Master Tiger has claimed not only her body, but her fiercely guarded heart too.
I found the writing to be excellent, nothing 'jerked' me from the story & I didn't skim or want to skim any parts of the story. I found I wasn't able to stop reading once I started & was so deep into the plot & characters I forgot I was reading.
For a wonderfully written romance thriller that is a perfectly balanced feast of sizzling sensual steam, intriguing suspense & deliciously detailed danger, read this one. It's a superb book to settle down & savor, to dive into enthusiastically & be smoothly swirled away to Castle Sin & the Masters & their subs . . . .
Profile Image for Maria (Ri).
5,170 reviews17 followers
July 19, 2020
4 stars

There is just something about this author and her Club Or Sin series. I love the backstory and the characters with an interwoven suspense filled plot mixed in. While this helped in adding details to that mystery, I struggled with Ava and Patker. I never connected with them the way I did with other characters in this series.

Still, I'm anxious to continue on with the story and see what is in store for Zeke.
Profile Image for Rhonda.
3,802 reviews63 followers
August 13, 2020
Wow! This won't be a very long review because I don't want to include spoilers but this book just sort of blew me away. I haven't read all the books in this series but I'm beginning to think I need to. Parker and Ava are awesome together, but when she's in trouble, he will be right there, taking care of things! Seriously, get this book!!! It was wonderful!!!
Profile Image for Sharilyn Russell.
1,003 reviews5 followers
May 30, 2020
I have no words

These books keep getting better each time. The cousins finding love is a joy to read. The action has me on the edge of my seat. This series ticks all my boxes for a great reading experience
264 reviews
August 11, 2020
Bdsm and politics

A love story wrapped in a mystery with terror, lust, s3x and an HEA. But then there is the epilogue. You must read the series, it is so good! I'm hoping for a truly satisfying happy ever after (with kink) at the end of the series. Meanwhile, my heart hurts.
Profile Image for Aline Riquelme.
303 reviews1 follower
June 6, 2021
Learning how to love

Awsome! I, once again, am completely in love with Linzi writing! Parker and Ava are the most lovely and hot couple ever. They made me laugh at their crazy adventures. I also am in love with all the mystery of the background history.
Profile Image for Kay Parker.
Author 44 books983 followers
January 21, 2021
Drama at every turn

I love following the escapades of the Sinclair's brothers. Looking forward to the next book after the exciting conclusion of Parker.
Profile Image for Saskia.
1,775 reviews52 followers
May 6, 2021
So far Parker was the most likeable of the Masters and I enjoyed his interactions with Ava. He made me laugh.

1,105 reviews18 followers
May 24, 2021
Parker and Ava are so freaking cute!! As usual a novel that is hot, steamy and sexy!!
430 reviews
November 2, 2021
Castle Sin

Parker and Ava make a very interesting couple in the IT unit of Castle Sin series. The way they play off each other is a fun read.
Profile Image for Toi.
4,320 reviews
July 22, 2022
Awesome Read

OMG hurrying to read the next book, especially the way this one ended - these books draw you in from page one and its hard to put them down
3 reviews1 follower
December 15, 2024
Love this whole series. Second time reading it. Protective alphas and strong women characters. Ongoing story line but each couple has a HEA. Lots of suspense and sexy scenes.
Profile Image for Carol.
231 reviews6 followers
May 20, 2020
Amazing! Simply amazing! Enjoy the Chemistry, sizzling tension between Parker and Ava.
Linzi's Castle Sin series is fabulous. From the beginning.

One click Parker read what great bdsm , suspense, chemistry. Wonderful characters.
Displaying 1 - 29 of 29 reviews