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Sister of No Mercy
At seventeen, Caitriona Walsh lost everything - her freedom, her future, and her newborn daughter - at the hands of the very institution sworn to offer salvation. Held captive in a modern-day Magdalene laundry, she escaped with nothing but her rage and a find her child, and make every person who stole her life pay.
Three years later, Cait hides in plain sight behind a nun’s habit, using her cover to hunt for answers and exact quiet but deadly vengeance.
Her plans are derailed when she can't stop herself from saving a young woman and her baby fleeing an abusive lover, and meets an intoxicating stranger in the underground sex club where she goes to forget. But it turns out rockbottom indeed has a basement, when the strager turns out to be not just harder to get out of her mind than anyone before, but also the lead investigator on the murder case she's just created.
Three years later, Cait hides in plain sight behind a nun’s habit, using her cover to hunt for answers and exact quiet but deadly vengeance.
Her plans are derailed when she can't stop herself from saving a young woman and her baby fleeing an abusive lover, and meets an intoxicating stranger in the underground sex club where she goes to forget. But it turns out rockbottom indeed has a basement, when the strager turns out to be not just harder to get out of her mind than anyone before, but also the lead investigator on the murder case she's just created.
155 pages, Kindle Edition
Published June 30, 2025
1 person is currently reading
13 people want to read
About the author
Chrissa Carrington
2 books7 followersHi, I'm Chrissa,
Prince of Rats is the first book in my historical romance trilogy and it marks the start of my colorful journey through different genres I intend to write in.
Originally from Hungary, I now live in Andalucia,
When I’m not writing, you can find me reading, binge-watching TV series,
Prince of Rats is the first book in my historical romance trilogy and it marks the start of my colorful journey through different genres I intend to write in.
Originally from Hungary, I now live in Andalucia,
When I’m not writing, you can find me reading, binge-watching TV series,
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Displaying 1 - 24 of 24 reviews
June 27, 2025
✨️ARC REVIEW✨️
Sister Of No Mercy by Chrissa Carrington
The Habit of Justice Book 1
Rating- ⭐️⭐️⭐️⭐️ Spice - 🌶🌶🌶
Approximate Page Count - 156
Release Date - 28th June 2025
⚠️Trigger Warnings⚠️
• Violence
• Murder
• Captivity
• Sexual Content
• Mention of Domestic and Child Abuse
• Mention of Physical and Emotional Torture
First off, I'd like to thank @chrissa_carrington_author & @theauthorsarchive_ for giving me the opportunity to read and review this ARC!🌻
Never thought I'd find myself reading a story about a nun on her path to revenge, but here we are, and what a thrilling, very interesting, and spicy ride it was! 🤭 If a morally grey, baddass, lady serial killer with secrets is what you're after, then this book is absolutely for you!🫵🏻 Catriona is an FMC with many layers, and I was so invested in finding out more about her and her past. The romance that's starting to flame with Liam, the lead investigator on a murder case she may or may not have committed, was absolutely delicious. 😋 I loved the instant attraction, and the tension was HOT! ❤️🔥
Overall, a fascinating plot that kept me hooked with a little touch of a cliffhanger at the end that has definitely made me eager for more. I can't wait to see where Chrissa takes this series. 👏🏻
Sister Of No Mercy by Chrissa Carrington
The Habit of Justice Book 1
Rating- ⭐️⭐️⭐️⭐️ Spice - 🌶🌶🌶
Approximate Page Count - 156
Release Date - 28th June 2025
⚠️Trigger Warnings⚠️
• Violence
• Murder
• Captivity
• Sexual Content
• Mention of Domestic and Child Abuse
• Mention of Physical and Emotional Torture
First off, I'd like to thank @chrissa_carrington_author & @theauthorsarchive_ for giving me the opportunity to read and review this ARC!🌻
Never thought I'd find myself reading a story about a nun on her path to revenge, but here we are, and what a thrilling, very interesting, and spicy ride it was! 🤭 If a morally grey, baddass, lady serial killer with secrets is what you're after, then this book is absolutely for you!🫵🏻 Catriona is an FMC with many layers, and I was so invested in finding out more about her and her past. The romance that's starting to flame with Liam, the lead investigator on a murder case she may or may not have committed, was absolutely delicious. 😋 I loved the instant attraction, and the tension was HOT! ❤️🔥
Overall, a fascinating plot that kept me hooked with a little touch of a cliffhanger at the end that has definitely made me eager for more. I can't wait to see where Chrissa takes this series. 👏🏻
June 30, 2025
The Tropes
💜 Forbidden Love
💜Anti-heroine
💜Dark Past
💜Revenge
Caitriona has a past with a hidden agenda. It’s a mysterious and thrilling agenda. Thank you Author’s Archive for my first ARC with you guys & introducing me to a new Indie Author, Chrissa. The story and plot were there. I was intrigued. There were quite a few grammatical errors/typos which bugged me (please note I received an early review copy so it wasn’t finished editing and I’m sure those were caught and fixed), but I’m still invested and want to know more about Caitriona and Liam. Cait had so much character and the pull from Liam that felt like getting her head above water is just what she needed. Now to find out what’s going on with her brother in book 2. The ending is an abrupt cliffhanger of sorts.
💜 Forbidden Love
💜Anti-heroine
💜Dark Past
💜Revenge
Caitriona has a past with a hidden agenda. It’s a mysterious and thrilling agenda. Thank you Author’s Archive for my first ARC with you guys & introducing me to a new Indie Author, Chrissa. The story and plot were there. I was intrigued. There were quite a few grammatical errors/typos which bugged me (please note I received an early review copy so it wasn’t finished editing and I’m sure those were caught and fixed), but I’m still invested and want to know more about Caitriona and Liam. Cait had so much character and the pull from Liam that felt like getting her head above water is just what she needed. Now to find out what’s going on with her brother in book 2. The ending is an abrupt cliffhanger of sorts.
June 25, 2025
Let’s start by saying... Revenge stories? I’M IN!!!There’s something so appealing about watching a “villain’s” origin story, and this one? Dark and soooo satisfying! 🤌🏻
The writing and the storytelling flows good. I was hooked since the first chapter by Caitriona’s double life 👀 And... a FMC who’s calculating, complex, and deliciously morally grey?? YES, Please!.. A killer with a purpose? SURE!! And I don’t even care what that says about me ... I’m sooo rooting for her. 😌🖤
Now .. let’s talk ✨“Romance”✨.. the dynamic between Caitriona and Liam? Great!! Tension, sprinkle in a little Spice and ta-dah! .. it just worked really .. really well.
I’ll admit I devoured this novella in just one sitting (yes, sadly is a short read) because the ⚡️Plot⚡️kept me on edge.
And that ending?? 😱 Yup, I was not ready for the cliffhanger!
Overall, this was an interesting revenge arc with a plot (and hot characters) that kept me intrigued all the way, so.. I’ll absolutely be waiting (impatiently 😩) for the next one in the series.
The writing and the storytelling flows good. I was hooked since the first chapter by Caitriona’s double life 👀 And... a FMC who’s calculating, complex, and deliciously morally grey?? YES, Please!.. A killer with a purpose? SURE!! And I don’t even care what that says about me ... I’m sooo rooting for her. 😌🖤
Now .. let’s talk ✨“Romance”✨.. the dynamic between Caitriona and Liam? Great!! Tension, sprinkle in a little Spice and ta-dah! .. it just worked really .. really well.
I’ll admit I devoured this novella in just one sitting (yes, sadly is a short read) because the ⚡️Plot⚡️kept me on edge.
And that ending?? 😱 Yup, I was not ready for the cliffhanger!
Overall, this was an interesting revenge arc with a plot (and hot characters) that kept me intrigued all the way, so.. I’ll absolutely be waiting (impatiently 😩) for the next one in the series.
July 16, 2025
Thanks to The Author's Archive for an advanced ARC in exchange for an honest review.
If you're looking for a summary of this short novella, you get it on page 153:
I lifted the habit over my head and turned back into Caitriona Walsh, badass chick who frequented a sex club on the regular and killed every fucker who ever wronged her.
This is my first ARC and I was interested because of the various themes and the genre. I love me a dark romance and the page length was an extra incentive to add to my reading list this year.
Unfortunately, this short story read a lot more like self insertion fanfiction: Hot badass heroine with a tragic past, a double life, the ability to kill and seduce without much repercussion (no matter how much she worries about it - there was a disproportionate amount of times when luck seemed to be on her side in the presence of trained mobsters and law enforcement); Cat feels a lot like a Mary Sue. We even have a dramatic reveal of the word "angst" on page 70.
For a short story, it could use a lot of tightening up and focus. In the space of two pages, I read how "I adjusted my veil and sighed," how she had to "stifl[e] another sigh," and "suppressed a sigh."
A lot of internal processes by our FMC flip flop to the point of frustration:
Being at others' mercy, not knowing if they even knew the meaning of the word. Most of them didn't.
But I thought we didn't know?
He wasn't supposed to be here this late. And still here he was every day [...]
...so this is usual for him then? Why bother mentioning he shouldn't be there?
Plot points are thrown out randomly without any kind of segueway, confusing the narrative.
The parking lot was mostly empty when I reached my car, one I loved but rarely had a chance to use. I bought it back in the day, soon after I had my freedom back.
A freedom we don't revisit more intimately until the end of the story, in a flashback that has no anchor to a time or date.
I shouldn't have let it get this far. Not with everything at stake. My daughter. My mission. My very freedom.
It's page 150 here and this is the first time Cat mentions having a daughter. Her mission is only vaguely suggested, and her freedom is confusing (why is she staying at the nunnery? what is keeping her there? If it's just a front for what she wants to do, why is she so bitter about it?)
There were also a fair amount of incorrect or made up words in this book:
"squeeziness"
"queezy"
"shirt show"
"gabbling"
"vile" instead of "vial"
"wise" instead of "vice,"
"scuffed" instead of "scoffed"
"lounge' instead of "lungs"
"Laundry" instead of "laundromat"
"naked" instead of "asked"
"Baby food" instead of "formula"
"cheated" instead of "deceived" (as in, my ears --)
I sincerely struggled to understand some parts of this book as well:
Shane appeared in front of me like a waif and I almost flinched.
How does one...appear like a waif? And why is it so startling?
I found the letters quickly enough and took them to be flushed down the toilet.
Were these letters written on toilet paper?
I rose from scrubbing the floors, smoothing the skirt of my habit. "Detective Roark."
But he sounded anything but.
....he sounded what? He didn't even talk.
"Didn't the guy Johnson called about, also had something in his bear?"
I honestly don't know what is being said here. "File"?
And still, only half my mind was present to appreciate the beauty in front of him.
Did the speaker mean "in front of me"?
Cat also frequently refers to herself as a serial killer, which is blatantly incorrect. She doesn't match the profile, and it's unlikely that someone killing abusers and shitbags for vengeance purposes would call themselves that.
It's never clear what actually happened to our heroine, even with all of the flashbacks to her past. I think the setting misses a lot of opportunity for details to paint a picture of where we are (all we ever really know is that we're in some seedy town in New York). Cat's thought processes are so mired down with angst and trauma that we never get a clear picture of what her purpose is, what happened to her, and what she wants beyond the cliched bloody vengeance. You could argue that the mystery is meant to be the hook, but I think I need something stronger to pull me into a series, something that can make Cat seem realistic, vulnerable, and empathetic. That can't happen if she keeps her secrets from everyone, readers included.
That said, this novella had several really cool lines that shows this author's capabilities. I'd like to see more lines like:
The past was a strange thing. You could leave it behind, bury it deep, pretend it no longer had power over you. But then, a name. A face. A memory. And suddenly, the past wasn't buried at all. It was clawing at your heels, dragging you backward.
Something that was more dangerous than a lone burning cigarette butt drifting in the wind at a gas station.
Silence wasn't peace here. It was a shroud, thick with misery.
I looked up, eyes locking with hers, and saw something flicker there. Need, challenge, maybe something softer under it all.
If I wasn't careful, the whole thing would come crumbling down and I'd be left with nothing but ashes and an orange jumpsuit.
Overall, I think this novella needs another trip to an editor to tighten up some of the internal monologuing and flesh out more setting and characterization. It was a struggle to finish.
If you're looking for a summary of this short novella, you get it on page 153:
I lifted the habit over my head and turned back into Caitriona Walsh, badass chick who frequented a sex club on the regular and killed every fucker who ever wronged her.
This is my first ARC and I was interested because of the various themes and the genre. I love me a dark romance and the page length was an extra incentive to add to my reading list this year.
Unfortunately, this short story read a lot more like self insertion fanfiction: Hot badass heroine with a tragic past, a double life, the ability to kill and seduce without much repercussion (no matter how much she worries about it - there was a disproportionate amount of times when luck seemed to be on her side in the presence of trained mobsters and law enforcement); Cat feels a lot like a Mary Sue. We even have a dramatic reveal of the word "angst" on page 70.
For a short story, it could use a lot of tightening up and focus. In the space of two pages, I read how "I adjusted my veil and sighed," how she had to "stifl[e] another sigh," and "suppressed a sigh."
A lot of internal processes by our FMC flip flop to the point of frustration:
Being at others' mercy, not knowing if they even knew the meaning of the word. Most of them didn't.
But I thought we didn't know?
He wasn't supposed to be here this late. And still here he was every day [...]
...so this is usual for him then? Why bother mentioning he shouldn't be there?
Plot points are thrown out randomly without any kind of segueway, confusing the narrative.
The parking lot was mostly empty when I reached my car, one I loved but rarely had a chance to use. I bought it back in the day, soon after I had my freedom back.
A freedom we don't revisit more intimately until the end of the story, in a flashback that has no anchor to a time or date.
I shouldn't have let it get this far. Not with everything at stake. My daughter. My mission. My very freedom.
It's page 150 here and this is the first time Cat mentions having a daughter. Her mission is only vaguely suggested, and her freedom is confusing (why is she staying at the nunnery? what is keeping her there? If it's just a front for what she wants to do, why is she so bitter about it?)
There were also a fair amount of incorrect or made up words in this book:
"squeeziness"
"queezy"
"shirt show"
"gabbling"
"vile" instead of "vial"
"wise" instead of "vice,"
"scuffed" instead of "scoffed"
"lounge' instead of "lungs"
"Laundry" instead of "laundromat"
"naked" instead of "asked"
"Baby food" instead of "formula"
"cheated" instead of "deceived" (as in, my ears --)
I sincerely struggled to understand some parts of this book as well:
Shane appeared in front of me like a waif and I almost flinched.
How does one...appear like a waif? And why is it so startling?
I found the letters quickly enough and took them to be flushed down the toilet.
Were these letters written on toilet paper?
I rose from scrubbing the floors, smoothing the skirt of my habit. "Detective Roark."
But he sounded anything but.
....he sounded what? He didn't even talk.
"Didn't the guy Johnson called about, also had something in his bear?"
I honestly don't know what is being said here. "File"?
And still, only half my mind was present to appreciate the beauty in front of him.
Did the speaker mean "in front of me"?
Cat also frequently refers to herself as a serial killer, which is blatantly incorrect. She doesn't match the profile, and it's unlikely that someone killing abusers and shitbags for vengeance purposes would call themselves that.
It's never clear what actually happened to our heroine, even with all of the flashbacks to her past. I think the setting misses a lot of opportunity for details to paint a picture of where we are (all we ever really know is that we're in some seedy town in New York). Cat's thought processes are so mired down with angst and trauma that we never get a clear picture of what her purpose is, what happened to her, and what she wants beyond the cliched bloody vengeance. You could argue that the mystery is meant to be the hook, but I think I need something stronger to pull me into a series, something that can make Cat seem realistic, vulnerable, and empathetic. That can't happen if she keeps her secrets from everyone, readers included.
That said, this novella had several really cool lines that shows this author's capabilities. I'd like to see more lines like:
The past was a strange thing. You could leave it behind, bury it deep, pretend it no longer had power over you. But then, a name. A face. A memory. And suddenly, the past wasn't buried at all. It was clawing at your heels, dragging you backward.
Something that was more dangerous than a lone burning cigarette butt drifting in the wind at a gas station.
Silence wasn't peace here. It was a shroud, thick with misery.
I looked up, eyes locking with hers, and saw something flicker there. Need, challenge, maybe something softer under it all.
If I wasn't careful, the whole thing would come crumbling down and I'd be left with nothing but ashes and an orange jumpsuit.
Overall, I think this novella needs another trip to an editor to tighten up some of the internal monologuing and flesh out more setting and characterization. It was a struggle to finish.
This entire review has been hidden because of spoilers.
July 7, 2025
At seventeen, Caitriona Walsh lost everything - her freedom, her future, and her newborn daughter - at the hands of the very institution sworn to offer salvation. Held captive in a modern-day Magdalene laundry, she escaped with nothing but her rage and a find her child, and make every person who stole her life pay.
Three years later, Cait hides in plain sight behind a nun’s habit, using her cover to hunt for answers and exact quiet but deadly vengeance.
Her plans are derailed when she can't stop herself from saving a young woman and her baby fleeing an abusive lover and meets an intoxicating stranger in the underground sex club where she goes to forget. But it turns out rockbottom indeed has a basement, when the strager turns out to be not just harder to get out of her mind than anyone before, but also the lead investigator on the murder case she's just created.
******************************
Full disclosure before I post my thoughts, I received this book from The Authors Archive to read and review.
The copy I received may, or may not have been the final version. I am hoping it was an ARC, and the numerous spelling errors and typos were remedied before the final version was issued.
The story itself had an interesting premise, moved along at a decent pace, and was different enough to hold my attention.
The two main characters were ok, although so far, we don't really know a lot about them. I hope this will be remedied in future books in the series.
It feels like there could be a lot more to their stories, with one obvious possibility between Catriona and Liam? I hope book 2 gives us some answers to this question.
On the whole, it is an enjoyable book and worth reading.
Three years later, Cait hides in plain sight behind a nun’s habit, using her cover to hunt for answers and exact quiet but deadly vengeance.
Her plans are derailed when she can't stop herself from saving a young woman and her baby fleeing an abusive lover and meets an intoxicating stranger in the underground sex club where she goes to forget. But it turns out rockbottom indeed has a basement, when the strager turns out to be not just harder to get out of her mind than anyone before, but also the lead investigator on the murder case she's just created.
******************************
Full disclosure before I post my thoughts, I received this book from The Authors Archive to read and review.
The copy I received may, or may not have been the final version. I am hoping it was an ARC, and the numerous spelling errors and typos were remedied before the final version was issued.
The story itself had an interesting premise, moved along at a decent pace, and was different enough to hold my attention.
The two main characters were ok, although so far, we don't really know a lot about them. I hope this will be remedied in future books in the series.
It feels like there could be a lot more to their stories, with one obvious possibility between Catriona and Liam? I hope book 2 gives us some answers to this question.
On the whole, it is an enjoyable book and worth reading.
June 28, 2025
I was hooked by this book almost instantly. Caitriona’s character grabbed me right away. She’s not a typical heroine, nor just a simple avenger, but someone who forged her own justice out of darkness. The story moves fast, it’s tense and gripping, yet still manages to strike deep emotional chords.
This is not just a revenge thriller, it’s a character-driven story that explores how Caitriona’s past shaped who she is now. We come to understand why she’s capable of killing in cold blood, even as her inner thoughts reveal a raw, painful vulnerability.
I loved the dark atmosphere, the strong yet emotionally complex protagonist, and of course, the erotic tension that adds another layer to the relationships. The sex club scenes are especially memorable, not only bold, but surprisingly emotional and meaningful. Liam is also a genuinely compelling and worthy match in this shadowy world. The chemistry between him and Caitriona simmers throughout. Tense, playful, distrustful, and passionate all at once.
This is not just a revenge thriller, it’s a character-driven story that explores how Caitriona’s past shaped who she is now. We come to understand why she’s capable of killing in cold blood, even as her inner thoughts reveal a raw, painful vulnerability.
I loved the dark atmosphere, the strong yet emotionally complex protagonist, and of course, the erotic tension that adds another layer to the relationships. The sex club scenes are especially memorable, not only bold, but surprisingly emotional and meaningful. Liam is also a genuinely compelling and worthy match in this shadowy world. The chemistry between him and Caitriona simmers throughout. Tense, playful, distrustful, and passionate all at once.
June 24, 2025
⭐️⭐️⭐️⭐️
So so good, I love a good revenge plot and Sister of No Mercy delivered just that.
This is the beginning of a series and ends on a slight cliffhanger so for those who don’t like the suspense and anticipation of the wait for the next book/s, I would suggest waiting to read it.
It should definitely be added to your TBR though.
This book is a serial killer x cop dark romance, with a smoking hot MMC and a FMC living a double life to enact revenge on those who hurt her.
Some potentially triggering topics are mentioned in this book including (but not limited to)
- murder
- kidnapping
- domestic violence
- religious trauma (vague mentions of physical abuse, sexual abuse, and pregnant teens having their children taken from them)
TROPES:
📚 cop x serial killer
📚 revenge
📚 power imbalance
RELEASE DATE > June 28th, 2025
So so good, I love a good revenge plot and Sister of No Mercy delivered just that.
This is the beginning of a series and ends on a slight cliffhanger so for those who don’t like the suspense and anticipation of the wait for the next book/s, I would suggest waiting to read it.
It should definitely be added to your TBR though.
This book is a serial killer x cop dark romance, with a smoking hot MMC and a FMC living a double life to enact revenge on those who hurt her.
Some potentially triggering topics are mentioned in this book including (but not limited to)
- murder
- kidnapping
- domestic violence
- religious trauma (vague mentions of physical abuse, sexual abuse, and pregnant teens having their children taken from them)
TROPES:
📚 cop x serial killer
📚 revenge
📚 power imbalance
RELEASE DATE > June 28th, 2025
June 26, 2025
I got a very short notice invitation to read this ARC and I'm so thankful for that. I devoured it in hours!
There's just one thing that I wasn't a fan, and it was the part of Liam's blindness that Sister Caterine and Caitriona are the same person.. like, is that really hard to figure out? I mean, it was a little hard to believe, but! that didn't affect my reading so I decided it to pass through it.
We get to know a little of Cait's past and her reasons of her life mission. And we just get a glimpse of Liam's side... and I think a very kinda obvious clue of where Cait's daughter is.
I really like how the story is going. We have: crime investigation, revange plot, a badass anti heroine, and smut. That's a sold for me.
As this is the first book of a series, it ends in a cliffhanger and so many unanswered questions.
Now, I just have to patiently wait for the next one.
There's just one thing that I wasn't a fan, and it was the part of Liam's blindness that Sister Caterine and Caitriona are the same person.. like, is that really hard to figure out? I mean, it was a little hard to believe, but! that didn't affect my reading so I decided it to pass through it.
We get to know a little of Cait's past and her reasons of her life mission. And we just get a glimpse of Liam's side... and I think a very kinda obvious clue of where Cait's daughter is.
I really like how the story is going. We have: crime investigation, revange plot, a badass anti heroine, and smut. That's a sold for me.
As this is the first book of a series, it ends in a cliffhanger and so many unanswered questions.
Now, I just have to patiently wait for the next one.
June 27, 2025
I have mixed feelings about this one.
SPOILERS!!
For one, I LOVE a good revenge murder plot, especially when it gets spiced up (in more ways than one!). You can't help but root for Cait in what she's doing in her double agent life.
But I do feel that we lost some of the plot whether this is because it's so short idk. We have maybe one mention that she had a baby and then it's kind of hinted at where that baby is but then we never hear about it again...
The spice between Cait and Liam is 🔥🔥 and I feel that has been set up beautifully 👌for upcoming books. I can't wait to see where that leads!!
And to end on a cliffhanger is always amazing when done right. it was a little out of the blue but we did hear about her brother.
I think there's a lot of places this can go so I'm excited to see what's next!!
SPOILERS!!
For one, I LOVE a good revenge murder plot, especially when it gets spiced up (in more ways than one!). You can't help but root for Cait in what she's doing in her double agent life.
But I do feel that we lost some of the plot whether this is because it's so short idk. We have maybe one mention that she had a baby and then it's kind of hinted at where that baby is but then we never hear about it again...
The spice between Cait and Liam is 🔥🔥 and I feel that has been set up beautifully 👌for upcoming books. I can't wait to see where that leads!!
And to end on a cliffhanger is always amazing when done right. it was a little out of the blue but we did hear about her brother.
I think there's a lot of places this can go so I'm excited to see what's next!!
This entire review has been hidden because of spoilers.
June 30, 2025
ARC Review: This ARC was received in return for an honest review.
Disclaimer: this review contains spoilers
3.5 ⭐️ rounded up to 4
2.5 🌶️
Caitriona is a stabby FMC on a revenge path for vengeance for her dark past. Hiding out in a convent as a nun, she has the perfect routine until a young mum comes to hide out.
Liam is a single dad, ex-military turned homocide detective. One case lands him connecting the dots of a potential serial killer. Who knew the mysterious stranger he met at a sex club is the killer herself.
The storyline I loved but the book needed to be longer to allow some scenes to flow smoother and develop the backstory further. Unfortunately there were quite a few grammatical errors enough to take a hit to my overall score but not too much that I could somewhat ignore it.
I’m excited to see what Book 2 has to offer with the development of this story.
Disclaimer: this review contains spoilers
3.5 ⭐️ rounded up to 4
2.5 🌶️
Caitriona is a stabby FMC on a revenge path for vengeance for her dark past. Hiding out in a convent as a nun, she has the perfect routine until a young mum comes to hide out.
Liam is a single dad, ex-military turned homocide detective. One case lands him connecting the dots of a potential serial killer. Who knew the mysterious stranger he met at a sex club is the killer herself.
The storyline I loved but the book needed to be longer to allow some scenes to flow smoother and develop the backstory further. Unfortunately there were quite a few grammatical errors enough to take a hit to my overall score but not too much that I could somewhat ignore it.
I’m excited to see what Book 2 has to offer with the development of this story.
This entire review has been hidden because of spoilers.
June 29, 2025
Read and reviewed as an ARC
Nun/vigilante meets a detective looking into a series of murders she may or may not be responsible for 🤫
I love a morally grey vigilante FMC and her overall storyline was so intriguing. I have some theories and I can’t wait for book 2!
The spice and the chemistry between the two MCs in this one was amazing!
An easy read to add to your never ending TBR without feeling bogged down, though it is the first of a series and ends on a bit of a cliffhanger. The main complication of this story is resolved.
Overall 4.5 stars, only losing half a star for me due to some minor errors that haven’t been picked up in the editing process, but I found overall they didn’t take away from the storyline.
Nun/vigilante meets a detective looking into a series of murders she may or may not be responsible for 🤫
I love a morally grey vigilante FMC and her overall storyline was so intriguing. I have some theories and I can’t wait for book 2!
The spice and the chemistry between the two MCs in this one was amazing!
An easy read to add to your never ending TBR without feeling bogged down, though it is the first of a series and ends on a bit of a cliffhanger. The main complication of this story is resolved.
Overall 4.5 stars, only losing half a star for me due to some minor errors that haven’t been picked up in the editing process, but I found overall they didn’t take away from the storyline.
June 28, 2025
The premise of Sister No Mercy is intriguing, but the execution didn’t quite hit the mark for me. The story tries to juggle too many plotlines for such a short book, leaving everything feeling a bit rushed and underdeveloped.
Liam’s POV, while included, felt underused — I would’ve loved more depth from his side. The dual perspective had potential but didn’t feel fully balanced.
The editing also needed attention — with basic proofreading, many of the issues could’ve easily been smoothed out.
That said, the concept is strong, and the book ends on a solid cliffhanger that definitely piqued my interest for what’s next. With some tightening, this series could really shine.
Liam’s POV, while included, felt underused — I would’ve loved more depth from his side. The dual perspective had potential but didn’t feel fully balanced.
The editing also needed attention — with basic proofreading, many of the issues could’ve easily been smoothed out.
That said, the concept is strong, and the book ends on a solid cliffhanger that definitely piqued my interest for what’s next. With some tightening, this series could really shine.
July 2, 2025
⚠️ please check TW before reading if you have any
A story about a nun on her path for revenge well goddamn if I wasn’t roped in instantly. If a morally grey female serial killer is your thing, you’ve come to the right book. The FMC is Catriona and she had a heavy and dark past and is seeking her revenge by posing as a nun during the day. While of a night she sneaks out of the convent and indulges at a sex club where she meets MMC Liam, who of course is the lead detective on the homicide case that she may or may not committed ;)
The spice is spicing and the tension between the 2 is hot 🥵🥵
Does end on a little cliffhanger but I cannot wait to see what book 2 has installed for us 💕
A story about a nun on her path for revenge well goddamn if I wasn’t roped in instantly. If a morally grey female serial killer is your thing, you’ve come to the right book. The FMC is Catriona and she had a heavy and dark past and is seeking her revenge by posing as a nun during the day. While of a night she sneaks out of the convent and indulges at a sex club where she meets MMC Liam, who of course is the lead detective on the homicide case that she may or may not committed ;)
The spice is spicing and the tension between the 2 is hot 🥵🥵
Does end on a little cliffhanger but I cannot wait to see what book 2 has installed for us 💕
July 7, 2025
This was a quick, intriguing read and a short-notice ARC I was excited to dive into. I’ve enjoyed similar revenge-driven plots before, so I didn’t hesitate to give this one a go—and who can resist the added twist of a nun with a hidden agenda?
I'm all for a strong female lead on a mission, and Sister Catherine/Catriona definitely delivered that edge. That said, I did find it hard to believe that Liam couldn’t figure out Catherine and Catriona were the same person.
Still, the storyline had enough substance to keep me hooked, and it ended quite abruptly on a cliffhanger—which definitely has me curious for the next installment!
I'm all for a strong female lead on a mission, and Sister Catherine/Catriona definitely delivered that edge. That said, I did find it hard to believe that Liam couldn’t figure out Catherine and Catriona were the same person.
Still, the storyline had enough substance to keep me hooked, and it ended quite abruptly on a cliffhanger—which definitely has me curious for the next installment!
June 26, 2025
AMAZING! Got this book as an ARC and I was hooked from the first page! Serial killer FMC X hot AF homicide detective who is looking into those murders!! How did they meet you ask? Only at a kink club… where else!
Absolutely loved this! The plot was really good and had me wanting to turn the page! Can’t wait for the next book to
Continue the story. The background on the characters was good, not enough to know it all but you know what’s going on and motives which is great.
Absolutely loved this! The plot was really good and had me wanting to turn the page! Can’t wait for the next book to
Continue the story. The background on the characters was good, not enough to know it all but you know what’s going on and motives which is great.
This entire review has been hidden because of spoilers.
June 27, 2025
The premise for the story is really good and it has potential to be a lot more. Understandably we can't know everything as it's not only book 1 but also a novella.
Liam seems like he could be a really great MMC if we get a bit more of "him".
Cait definitely has many secrets left to tell us still.
A few continuity issues that I'm hoping final edits picked up on. Appreciate the ARC and look forward to book two and unravelling more secrets!
Liam seems like he could be a really great MMC if we get a bit more of "him".
Cait definitely has many secrets left to tell us still.
A few continuity issues that I'm hoping final edits picked up on. Appreciate the ARC and look forward to book two and unravelling more secrets!
July 25, 2025
Dark, spicy, and a cliffhanger! 3.5 stars
firstly, the storyline this series presents has so much exciting potential, and I am here for it!
the touches on Caits' backstory make you want to dig deeper. A badass, serial killing (only bad guys!) enigma turned nun in the day, who is falling for Liam, not only a detective but a dad too. I cant wait to see how this plays out.
Thank you to Chrissa Carrington and the Authors Collective for the opportunity to read this ARC for an honest review!
firstly, the storyline this series presents has so much exciting potential, and I am here for it!
the touches on Caits' backstory make you want to dig deeper. A badass, serial killing (only bad guys!) enigma turned nun in the day, who is falling for Liam, not only a detective but a dad too. I cant wait to see how this plays out.
Thank you to Chrissa Carrington and the Authors Collective for the opportunity to read this ARC for an honest review!
June 29, 2025
Thank you to Chrissa Carrington and The Authors Archive for letting me read an eARC for this!!! These opinions are my own!
Ummmm the vibes were vibing!! Badass FMC. Nun/Assassin. Hot broody detective. Murder mystery. Revenge. Alter egos.
This was a quick read. It was super fun and a wee bit spicy! I can’t wait to read the next one and find out what’s going to happen!
Ummmm the vibes were vibing!! Badass FMC. Nun/Assassin. Hot broody detective. Murder mystery. Revenge. Alter egos.
This was a quick read. It was super fun and a wee bit spicy! I can’t wait to read the next one and find out what’s going to happen!
July 1, 2025
I absolutely ADORED the FMC in this book. A bad-ass assassin that is hiding in plain sight as a nun to plot revenge?? SIGN ME UP!! The spice was spicyyyyyyy and I love that the relationship between Cait (FMC) and Liam (MMC) didn't feel like it progressed too quickly or too unrealistically.
l can't wait to see where this series goes!!
l can't wait to see where this series goes!!
July 26, 2025
I’ve always been a fan of the cop falling for the serial killer they are looking for books and this was one of those books. The spicy scenes this book does have fit very well with the characters. Not overly graphic but just enough. The book does end on a slight cliffhanger making you want more. I’m excited for the next book now to see what happens
June 25, 2025
A morally grey FMC whose complex, calculating, and oh a serial killer! I was hooked in when it started out with her living a double life. Also, hello, Mr detective!!
I need the next book asap! So many questions...
I need the next book asap! So many questions...
July 12, 2025
This was an interesting read, short but certainly not sweet - she was dark!
The spice was good and made for nice relief however I did struggle a little with the plot in such few pages.
Will be interesting to see where it goes from here.
The spice was good and made for nice relief however I did struggle a little with the plot in such few pages.
Will be interesting to see where it goes from here.
June 27, 2025
Wow a good story full of revenge had me turning the pages for what was going to happen next. Received as an ARC and throughly enjoyed it.
December 9, 2025
So much packed in this novella with a cliffhanger that left me wanting more.
The FMC's back story is just heart wrenching. Her pain and conviction is palpable. The chemistry between the main characters was exceptional. Overall a great story and I can't wait to see what happens next.
The FMC's back story is just heart wrenching. Her pain and conviction is palpable. The chemistry between the main characters was exceptional. Overall a great story and I can't wait to see what happens next.
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