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What's Mine Is Yours: A completely gripping and totally addictive psychological thriller with nail-biting suspense

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I invited her into my home. I shouldn’t have…

I have always loved my family house on a quiet little street, but when my neighbour is burgled, my daughter is terrified. Soon, she’s too scared to sleep. I don’t know what to do.

I’m so relieved when my oldest friend Emily offers to swap houses until Lexi can sleep through the night.

But as I lie in Emily’s bed in her cramped apartment, I fear what she’s up to inside my home… There are secrets buried in my house that I can’t let anyone discover.

And as Emily makes excuses not to swap our houses back, I start to wonder, could Emily have arranged this?

Just how dangerous is this woman I thought was my best friend? How far will I have to go to keep my daughter and my secrets safe?

With a jaw-dropping twist, What’s Mine Is Yours is a truly addictive psychological thriller, perfect for fans of Lisa Jewell, Sally Hepworth and Adele Parks.

What readers love about What’s Mine is Yours:

SIX STARS!!!I COULD NOT PUT THIS BOOK DOWN. From the start I got hooked and had to find out what would happen next… the twists were twisting!!!… 10/10 recommending this to EVERYONE I know!’ Goodreads reviewer ⭐⭐⭐⭐⭐

I LOVED THIS!… This is one heck of a journey that I still cannot stop thinking about! My heart is still pounding!’ Goodreads reviewer ⭐⭐⭐⭐⭐

‘One gripping!… Totally unexpected and explosive I was glued to my Kindle all evening until l finished it and devoured it in one sitting!arcreviews_by_m ⭐⭐⭐⭐⭐

W.O.W. what a read!!!! This had me up reading it till the early hours. Explosive.’ Goodreads reviewer ⭐⭐⭐⭐⭐

Gripped me from the very first page… I was exhausted and desperate for sleep, but I simply could not put it down… An absolute standout read that I won’t forget.’ Momobookdiary ⭐⭐⭐⭐⭐

‘What a rollercoaster of a read!… had me hooked from the start.’ reviewsbooks ⭐⭐⭐⭐⭐

‘Had me gripped from the very first page, I could not put it down!book_lovers_nook ⭐⭐⭐⭐⭐

Fantastic… I want to talk to everyone about this book and have massive gasping discussions about it!’ Goodreads reviewer ⭐⭐⭐⭐⭐

A must-read!… will take your breath away.’ Me Writer ⭐⭐⭐⭐⭐

I was hooked!… dark, twisted, and super addictive. Let me tell you, I devoured this book! I could not put it down.’ heleenethebookaholic

‘Full of unexpected twists that kept me hooked from start to finish… Had me reading late into the night.

244 pages, Kindle Edition

Published May 8, 2025

204 people are currently reading
142 people want to read

About the author

Leah Mercer

21 books248 followers
Leah can't remember a time when she didn't love writing. From creating fake newspapers to writing letters to the editor, scribbling something was always on the agenda. Even the rejections she received after completing her first novel at age 13 didn't dent her enthusiasm.

So it makes sense, then, that she pursued a career in anything but writing. Public relations, teaching, recruitment, editing medical journals -- even a stint painting houses -- until she finally succumbed once more to the lure of the blank page.

When she's not being jumped on by her young son or burning supper while thinking of plot-lines, Leah can be found furiously tapping away on her laptop, trying not to check Twitter or Facebook.

Leah also writes romantic comedies under the name Talli Roland.

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Displaying 1 - 30 of 56 reviews
Profile Image for Laura Smith.
545 reviews25 followers
April 9, 2025
WHATS MINE IS YOURS BY LEAH MERCER.
Release date set for the 8th of May 2025.
Oh the twists in this books.
Many times throughout this book I kept questioning where it was going.
Pageturner with good interesting characters.
My darling son had me up at 4am so I've been able to read this book fairly quickly.
Profile Image for Robin Loves Reading.
2,903 reviews425 followers
May 9, 2025
Ava and Emily reconnect after a break in at Ava’s neighbor’s house. Once the best of friends, their friendship did not survive. They come up with an interesting plan. As Ava’s daughter Lexi is now terrified to be at her home, Ava and Emily agree to swap houses for a time. This is when things really become interesting.

Emily has an ulterior motive when it comes to the agreeing to swap houses. What she wants is the friendship between her and Ava to be restored, and will go to any extreme possible to make that happen. As it turns out, one or both of the women have secrets that soon are accompanied by danger if not shockingly poor decisions.

Told in alternating perspectives, this captivating story slowly weaves events from the past to the present. Leah Mercer’s masterful storytelling keeps the reader engaged from beginning to end, drawing them into the unfolding drama. This domestic thriller is a must-read, an absolute delight that will leave you eager to discover what happens next.

Many thanks to Bookouture and to NetGalley for this ARC for review. This is my honest opinion.
Profile Image for Kristin.
1,033 reviews84 followers
May 12, 2025
This book gave off vibes from that movie “Single White Female” but in a slightly different way. Mercer created such suspense throughout the entire book. It was easy to tell that Emily was a little off, but I had no clue the extent that she was going to go to get what she wanted! She was holding on to so many secrets and lied so much, it was hard to like her or feel bad for her and her circumstances.

It was the complete opposite for Ava. She had a secret of her own, but it was a heartbreaking one. One that, when I learned what it was, I let out a gasp. I felt awful for her. Then the twist at the end which changed my perspective of the whole situation – just WOW!!! I know I’m being really vague, and that’s because as always, my reviews are spoiler free.

The book is told in varying point of views and Mercer does that exceptionally well in this book. There are not too many points of view so you don’t get confused. Each character has a distinct voice, which really helps. I really loved the kids, Sophie (Emily’s daughter) and Lexi (Ava’s daughter). I enjoyed reading about them gaining their voices and becoming more comfortable with their wants, needs, and relationships with their parents, whether it was good or bad.

There are some really great twists in this book, some shocking twists. The ending is fantastic, and I cannot wait to read more by this author!
Profile Image for Bookaholic__Reviews.
1,214 reviews155 followers
May 10, 2025
Well...well...well.. someone took what's mine is yours a little too literally.

This story is told from the perspective of two estranged friends, and honestly the more I read and learned, good riddance! I've heard the phrase " with friends like that who need enemies" and that's exactly the vibes I got from these two.

The story is riddled with secrets, some bigger and worse than others for sure. And I will admit I didn't see some of the revelations coming at all!

I received a copy in exchange for an honest review .
Profile Image for Amalie.
7 reviews
April 23, 2025
Rounded up from 2,5 stars.

This was kind of underwhelming to be honest. The beginning was a bit slow, but got better, pace wise, after a little while.
I feel like the build up for the reveal was too much for what we actually got. It was often mentioned that something unspeakable had happened, and I kept waiting for the big reveal that never really came. That was right up until the second to last chapter where we’re told what actually happened. For me, that was a bit too late. I had now spent 5 hours being a bit underwhelmed, and the twist at the end didn’t really save it for me.

I did like the twist itself though:)

Another thing I really liked was how the 11 year old, Lexi, was portrayed and how her chapters were written! She slid straight into my heart immediately🫶🏻

I don’t regret reading this and I never felt like I forced myself through this. It was quick and easy, but there are, in my opinion, better psychological thrillers out there. I’m 100% sure this book will be the right one for some people, but this was not for me.

Thank you to NetGalley and Bookouture for the ARC!
My thoughts are my own.
Profile Image for Linsey Toney.
651 reviews41 followers
June 16, 2025
What's Mine is Yours was a pretty good read. This is a suspenseful psychological thriller. I enjoyed the storyline and the twists. I think this was a fast paced easy to read book for me. I was able to put it down and pick it back up with ease, but I had to know what was going to happen so I finished it all in one day lol.. If you enjoy psychological thrillers that are easy to read then this is for you!
Profile Image for Ashley Sawyer.
492 reviews38 followers
May 8, 2025
"She invited her into her home. She shouldn't have..."

What's Mine is Yours by Leah Mercer is a suspenseful psychological thriller that explores friendship, rivalry, and obsession.

Ava and Emily used to be friends when they were both pregnant with their daughters. But faced with an unimaginable tragedy, Ava began to distance herself away from not only Emily, but away from everyone. Now years later a burglary next door has Ava and her daughter Lexi fearful to be home alone while husband Dan is away for work often. Emily sees this as her chance to reintegrate herself and her daughter Sophie into Ava's life. Offering up a solution in the form of a house swap until Dan can come home, Emily is hopeful that once she can get back into Ava's good graces the two can pick up their friendship. But both Ava and Emily are hiding secrets, and Emily is willing to sacrifice anything to be by Ava's side once again.

This is the second book by Leah Mercer that I have read and she is quickly becoming a must read author for me!! I loved the premise and found it to be full of insight into the reasons why the friendship had floundered in the first place. Emily's POV is truly wild and says a lot about how her mind works and the depths of obsession and rivalry with Ava that she has come to. The story is fast-paced with just enough action and suspense to keep me engaged. The chapters alternate between Ava, Emily and Ava's daughter Lexi and I liked how the secrets were revealed piece by piece. At one point I was 100% sure I knew where this was going only to be thrown in a different direction. Highly recommend!!

Thank you to NetGalley, Leah Mercer, and Bookouture for this ARC!! Publication date is May 8th 2025.
Profile Image for Craig and Phil.
2,272 reviews138 followers
April 6, 2025
Big thanks to Bookouture for a copy on Netgalley in exchange for an honest review.
What’s Mine Is Yours is the newest overflowing tension thriller from author Leah Mercer.
I’ve read a few of Leah’s books and I have really liked them and this one is another to add to that list.
Ava and Emily used to be best friends but now have drifted apart.
When a burglary goes wrong at the house next door to Ava and her daughter, Lexi, Emily suggests a temporary house swap.
As Lexi is quite frantic and scared, Ava says yes.
But Emily has an agenda, she will stop at nothing to get her friendship back with Ava, no matter the consequences.
Then secrets begin to surface and danger soon follows…..
No one is safe….
I was gripped right from the start and I didn’t let go.
A clever, exciting read that absorbed my attention throughout.
My thought process was activated and stimulated.
A thrilling and exhilarating read.
Profile Image for heleenethebookaholic.
217 reviews25 followers
April 25, 2025
This was my first book by Leah Mercer, and after finishing the ARC of What’s Mine is Yours, I definitely want to read more from her.

The story is told from three POVs—Emily, Ava, and Lexi—which I really liked. I always enjoy multiple perspectives because it adds more depth to the characters and the plot, and that was definitely the case here. The beginning was a little slow, but once it picked up, I was hooked. The writing flowed really well and kept me pulled in the whole time.

The story itself was dark, twisted, and super addictive. Let me tell you, I devoured this book! I could not put it down because something always happened that kept me on edge. And that ending twist? Did not see it coming.

If you’re into psychological thrillers that mess with your head a bit, I’d totally recommend What’s Mine is Yours. I’ll be picking up more of Leah Mercer’s books for sure.

Big thanks to NetGalley and Bookouture for the ARC!
Profile Image for Smoke.
138 reviews1 follower
April 28, 2025
The secrets were heavy between distant friends at one point pulled together close by pregnancy. I liked this. It had the twists & turns you'd want in a thriller. Engaging and a surprising end. It's absolutely worth a read ! Makes you think twice about things 👀 Thankyou mentally & the author for this Arc in exchange for an honest review! :)
Profile Image for Melisende.
1,246 reviews146 followers
April 21, 2025
Yet another highly engaging thriller - multiple narratives to give perspective and to then draw the threads in to bind into one, intricately woven thread.
Profile Image for Melissa.
1,479 reviews
November 4, 2025
I've been enjoying Leah Mercer's domestic suspense thrillers for quite some time now. What's Mine Is Yours is her latest offering and just like her others, it was hard to put down!

I liked the three different perspectives, one being from a preteen, and I didn't even notice that one was in first person until later in the story. There was a lot of mystery and intrigue involved. The different situations overlapped and there were a lot of misunderstandings as a result. There were just so many layers and I just had to know what would happen for the characters. In some ways, it reminded me of the movie Parasite.

After all the buildup, the ending felt a bit anticlimactic. While it was shocking, it was also frustrating.

Overall, another interesting and suspenseful novel, and I am already awaiting whatever Leah comes up with next!

(Trigger warnings below.)

Movie casting suggestions:
Ava: Rose Byrne
Sophie: Violet McGraw
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TW: Infant loss. Violence. Theft. Death of friend.
Profile Image for Kelly (aka jsybookworm).
236 reviews8 followers
May 11, 2025
Another solid 4 star psychological thriller from Leah Mercer! She never disappoints.

Ava dotes on her 11 year old daughter Lexi, she is Ava’s life, however Lexi feels stifled by her mother’s constant attention. She gets on a lot better with her dad, Dan, but he isn’t home often as he travels a lot for his pharmaceutical work. The family live in a safe quiet affluent neighbourhood but when there is a burglary at the house next to theirs, and Dan is still away for work, Ava is shaken, and Lexi feels extremely unsafe. The morning after the burglary Ava runs into her old friend Emily and her daughter Sophie, whilst doing the school run with Lexi. Both Ava and Emily had been pregnant with their daughters at the same time and after meeting at an antenatal clinic 11 years ago they instantly formed a close bond, but this bond was broken in a spectacular fashion soon after the two baby girls were born and since then both Ava and Emily just tend to say “hi” to each other at the school gates. Whilst Ava and Dan are comfortably well off, Emily isn’t, especially with Sophie’s father not being around, so she is anxious to make a better life for her and Sophie and is desperate for money. The morning after the burglary Ava runs into Emily and Ava, feeling very vulnerable and alone, she confides in Emily about the burglary and Lexi’s unwillingness to go back home due to feeling unsafe. Emily offers Ava and Lexi to stay with her and her daughter, Sophie, but her one bedroom flat is far too small for the four of them. So instead, Ava asks whether they could do a house swap for a few days until Dan gets back from his work trip and Emily agrees. Emily is excited to swap her tiny flat for Ava’s lovely large house and also hopes they may be able to rekindle the close friendship they once had and reconnect. Emily will do anything to get Ava’s friendship back; however, Emily and Sophie are a link to Ava’s past….. a past she is desperate to forget and pretend never happened. How far will Emily go to reconnect with Ava and when will Ava discover that Emily isn’t all who she seems to be?!

This was my second book by Leah Mercer, and I was hooked pretty early on as with her first book. I loved hearing the story from Ava, Emily and Lexi, dual POV’s are always something I enjoy. I was shocked at how grown up Lexi’s thinking was though; she seemed much older than an 11 year old but I think children grow up a lot quicker nowadays than they used to before there was so much technology around. I also was a bit baffled by Lexi’s anger towards her mum, although I do understand this could have been because she saw how independent Sophie was and she wanted the same independence, without realising that Sophie actually wanted her mum to be a mother to her rather than working every hour she could and leaving her alone so often. Chapter 25 shocked me to the core and the incident that occurred (again sorry for the mystery but this is a no spoiler review), made me realise very quickly who I should be rooting for and who was a pretty despicable character. I did not see the twist coming, which was brilliant, and I really was absolutely shocked at the turn of events, so excellent writing Leah Mercer!

This was a great story but a hard review to write as I don’t want to give away any spoilers, I hope I have done a decent job!

Overall, I would definitely recommend this to anyone who enjoys a good psychological thriller. Leah Mercer always comes up with the best (although sometimes chilling) twists! I look forward to what she writes next.

Thank you to NetGalley, Leah Mercer and Bookouture for my advanced reading copy. Out now.
Profile Image for Jeff.
1,761 reviews163 followers
April 23, 2025
Twisty Tale Packs A Lot Of Action Into Its Short-Ish Package. This is one of those sub-300 page books that is going to feel like it *has* to be longer than it is... in all the best ways. For all that happens here, you're going to be thinking this book is probably 100 or more pages longer than it actually is... and you're not even going to notice until you get to the end, look down, and question your sense of reality when you see the actual page number.

And speaking of questioning reality, this is absolutely one of those ultra twisty psychological thrillers where both the characters - and you, the reader - will be questioning all that you know (possibly even in your own "real" life) by the end.

I've read several of Mercer's books now, and this is absolutely both a solid look at her style (for new readers) and quite easily among the best she's done to date (for readers who have been around a while and already get excited when they see her name on a book). Either newbie or established fan, this one is one that will likely gain her far more fans than it loses. (Let's face it, *no* book is for everyone, and there *will* eventually be - wrong - reviews that claim this book is lacking in some aspect. Some people are idiots, and you just have to move on. ;) (And yes, I fully acknowledge that some consider *me* to be an idiot, but I also doubt those people are reading this review. :D) )

There will be at least some who don't want to read it for the simple reason of its basic premise, which largely hinges on mothers' fears, even years after the baby is born, which is respectable. As a childfree married dude, I *fully* get this, particularly given the book's release date between UK Mother's Day and US Mother's Day. For these types, I think the book is strong enough and doesn't really dive into too many problematic issues within the childfree community that I think many of us can still enjoy this book as much as I have, but again, from this angle (and similar), I absolutely get deciding that this book maybe isn't for you. Just please, I beg you - you've now been warned about this in this very review, so PLEASE don't DNF / 1* this book because of these issues. Just skip it entirely. You. Have. Been. Warned. :)

Overall truly an excellent tale superbly told, and great for when you maybe don't have as much time as you'd LIKE to read, but still don't want to read a sub-200 page book either (even though there are many at that length that are also awesome, fwiw).

Very much recommended.
Profile Image for MoMo Book Diary.
481 reviews62 followers
May 8, 2025
What's Mine Is Yours gripped me from the very first page. Right away, I knew there was something different about it - it’s a domestic thriller, yes, but with such raw emotional layers and a storyline that felt so real. I was exhausted and desperate for sleep, but I simply could not put it down until I reached the final page and learned how everything would unfold.

I didn’t guess the ending, and honestly, I’m glad I didn’t. The slow uncovering of the truth is heartbreaking in all the right ways. I found myself truly empathising with Ava and her daughter, Lexi.

At first, Lexi seems like yet another spoilt, moody youngster - but as the story progresses, you realise she’s just an eleven-year-old trying to make sense of a world full of adult secrets and complicated love. She just wants to be loved. What she doesn’t yet understand is that her mother does love her - maybe even too much - and Ava’s desperate need to protect her is what drives so much of this story’s emotional tension.

The relationship between Ava and Emily is fascinating to unravel. It’s hard to know who to trust at first - who’s telling the truth, and who’s hiding something darker. The idea of swapping homes is such a clever setup, creating an instant unease as Ava’s carefully protected world is invaded. There are so many small, subtle hints along the way, but it all leads to a conclusion that hit me far harder than I was expecting.

Leah Mercer’s writing is sharp and insightful. The way she builds character is so natural—you feel like you know these people, like you’ve heard whispers of their lives somewhere before. And that’s what makes the emotional fallout so impactful. It doesn’t feel like a story, it feels like something that could happen to someone just like you.

What’s Mine is Yours is a beautifully written, deeply emotional thriller that manages to be both tense and touching. It’s not just about lies and secrets, it’s about love, guilt, motherhood, and the things we try to hide in the name of protection. An absolute standout read that I won’t forget.
Profile Image for Tracy.
317 reviews6 followers
April 13, 2025
Ok Wow, Where do i start?!

This is the story about 2 women who kind of become friends from having children roughly at the same time, get involved with each others lives but one of them is a complete wrong’un!

This story is told from multiple points of view and to start with I found this a little jarring as I would just be getting into the story in one POV and it would change to someone else’s. This took me out of the story at times but it was such a gripping read it was easy to get back into and pick up the story again. This is a huge testament to how this author’s writing has developed over time and she is really honing her skills now. It was so clever when I thought I would put the book down cos I wasn’t feeling it, then she would drop a huge Easter egg and plot twist and she had me in a choke hold again and I couldn’t put the book down until I found out what happened.

This cast of characters had me completely in a head spin! One of the characters, well they definitely set my creeyometer off and oh boy was I right! Trust your creepyometer people! I truly didn’t see it happening the way it did and all the twists and turns in the last 25% of the book were incredible. I found myself hating certain characters one minute and then feeling empathy and sympathy for them the next!

This was a truly suspenseful read and with all the twists and turns a full on intense read as well. I think what made it even more creepier is the fact that this could genuinely happen in real life. I for one, whole heartedly recommend this book to anyone who loves a twisty turny thriller that grabs you by the throat and doesn’t let you go until the last page is turned. Thank you to Netgalley for the opportunity to read this amazing book.
Profile Image for Lizz.
221 reviews15 followers
April 22, 2025
**4.5 Stars**

𝐒𝐲𝐧𝐨𝐩𝐬𝐢𝐬
Ava hadn’t spoken to her former best friend Emily in years. But when a burglary leaves Ava’s daughter too scared to sleep at home, Emily offers a solution: a temporary house swap. Grateful, Ava agrees.
Now living in Ava’s beautiful home, Emily begins to uncover the truth behind her friend’s perfect image. Ava has been hiding a devastating secret—and Emily has just discovered it.
Ava never wanted Emily back in her life, but for her daughter’s sake, she gave in. As she lies awake in Emily’s cramped apartment, dread creeps in. Has Emily found the key to the locked basement room? Does she know what really happened?
Two women. Two secrets. One dangerous lie. One of them is in serious danger.

𝐌𝐲 𝐓𝐡𝐨𝐮𝐠𝐡𝐭𝐬
What a rollercoaster of a read! This book had me hooked from the start, constantly guessing and second-guessing where the story was headed. The suspense was palpable, and just when I thought I had figured things out, another twist would throw me off course—in the best way.
The dual (and sometimes multiple) narratives worked so well, giving us insight into different perspectives and slowly pulling together the threads of the story into one intricate, emotionally charged conclusion. The characters were well-developed and compelling, each with their own secrets and motivations that added depth to the plot.
While I did manage to predict a few plot points—which I always find satisfying—there were still plenty of surprises that genuinely caught me off guard. It kept the pace quick and the pages turning.
One important note: this book deals with some heavy themes, including child loss, so I recommend checking trigger warnings before diving in.

Thank You @Netgalley and @Bookouture for allowing me to review this ARC.
Profile Image for Els .
2,286 reviews53 followers
March 31, 2025
When you have experienced something tragic, you often struggle with feelings of guilt. Even if it has been proven that you are completely innocent, it can still be difficult to shake off this feeling. So, what do you do? To prevent anything else dramatic from happening, you may become overprotective toward certain people while pushing away others who are dealing with just as much grief as you are.

The result: One person may turn against you because they feel suffocated, jeopardizing your good relationship, while another may distance themselves even further. In the end, what remains?

This is an incredibly captivating book. It is filled with suspense, unexpected twists, and deep emotions. I figured out a few things on my own, which I always enjoy, but I was even more thrilled by the surprises I didn’t see coming.

I am also a big fan of stories told from multiple perspectives. The transformation Ava undergoes is beautiful to witness, and I found Emily to be a complex and interesting character. The daughters of both women also grow throughout the story.

The writing style is incredibly smooth, with a great rhythm throughout the book.

I am a very satisfied reader. 5 stars.
Thank you!
Profile Image for Mandy.
407 reviews
April 9, 2025
Ava lives with her husband, Dan, and 11-year-old daughter, Lexi, in a beautiful home and financially secure. She’s a GP but gave up working when Lexi was born. Ava tends to stifle Lexi and treat her to lots of lavish gifts, but Lexi wishes her mum was more ‘normal’. Dan often works late, or away, so is hardly ever at home.

Emily lives in a cramped, one-bedroom flat with her daughter, Sophie. Emily and Ava used to be good friends, having met whilst both pregnant, but then Ava stopped speaking to Emily.

Lexi is doing something that she doesn’t want her mum to find out about, so when the house next door is burgled, and the elderly man taken to hospital, she panics and is desperate to get away from home. Emily sees this great opportunity to get back her relationship with Ava and offers a house swap. Ava is very reluctant but Lexi begs her to go ahead, so Ava gives in.

Ava is then worried about Emily being in her house. Will she go nosing around, and, more importantly, will she find what’s in the locked basement?

I love this author’s thrillers, they are well-written with gripping storylines, and I would highly recommend What’s Mine is Yours.

Thank you to NetGalley and Bookouture for an advance reader copy in return for an honest review.
Profile Image for LindyLouMac.
1,016 reviews79 followers
April 24, 2025
Leah Mercer, who also publishes as Talli Roland is an author I have been following since 2010 when she published her first novel.  I have said this before, but her writing seems to go from strength to strength. Once again she has wowed me with her latest addictive thriller. 

'What's Mine is Yours' is another gripping intense and clever thriller from this author. Ava and Emily are the protagonists and were once very close friends, but events in Ava's life meant they drifted apart. Emily is determined to win back her friendship and she stops at nothing to achieve her aim. The repercussions just don't seem to worry her even when secrets and danger come to light.

I have always enjoyed reading the work of Leah Mercer over the years and followed the development of her style with interest. Her recent psychological thrillers have all kept me riveted to the stories, so along with her earlier ones recommended for fans of the genre.

Thanks to NetGalley, Bookouture and Leah Mercer for the advance copy in exchange for an honest review.

https://lindyloumacbookreviews.blogsp...
Profile Image for A Lane .
242 reviews8 followers
April 7, 2025
Yikes!! What's Mine Is Yours by Leah Mercer is a dark and disturbing novel about entitlement and jealousy. Leah knows how to dig deep into the human psyche and run with it.

Ava and Emily meet when they are both expecting and become friends. Soon after they give birth, a tragedy occurs and Ava pulls away. Emily is desperate to hang onto their friendship and to have what she believes she deserves and is owed. She pulls out all the stops in trying to achieve this and resorts to some very disturbing behavior.

This story encompasses friendship, grief, and entitlement between Ava and Emily. It is told through the perspectives of Ava and Emily and also Ava's daughter Lexi. It is filled with secrets and lies and several gasp out loud revelations. This is a must read for deep psychological suspense lovers. I highly recommend it and all of Leah Mercer's other books.

Thanks to Netgalley and Bookouture for the advanced copy
Profile Image for Hannah.
559 reviews11 followers
May 9, 2025
Emily offers to swap houses with her old best friend Ava, due to a burglary next door, who are no longer as close as she hopes they would be. Once there Emily begins to understand why Ava is avoiding her and the secrets she has could ruin the idyllic life that she has created.

I enjoyed the premise of this one and was interested to see where it would go. I was drawn into the story fairly soon into the novel, however it became quite slow paced until it picked up again at the end. I liked the dark undertones running throughout the story and the different points of view kept it engaging. I never really knew who to trust and there are some surprise twists to discover. This was a quick, easy read overall and an entertaining thriller. Thanks to NetGalley and the publisher for this copy in return for an honest review.
Profile Image for Hannah.
45 reviews2 followers
September 24, 2025
This book was so much fun! Very twisty. I loved following the character developments and putting their stories together. This book follows the stories of two young mothers, each with their own dark secrets and pasts that they try to keep hidden from others. However, Emily wants nothing more than to be a part of Posh mother Ava and her daughter Lexi's lives. Ava's husband Dan travels a lot so they spent a lot of time together when they were pregnant and their children were babies, but after a tragedy, Ava pushed away everyone in her life and focuses all her attention on her daughter Lexi. Unknowingly driving her away by smothering her. Such a great book, really great character development great ending! I would recommend everyone I know that enjoys a good psychological thriller to check this book out!
Profile Image for Laurie.
1,127 reviews
April 1, 2025
I LOVED THIS BOOK!
The twists, turns and slow yet steady suspense as the plot thickened in this story were intense!
Two, once upon a time best friends are now not friends. What has happened?

The secrets, guilt and fear that Ava has attempted to squash for years, are now leaking out.
Emily- once Ava's sidekick, is trying so hard to get back into Ava's life.
She will do anything and I mean anything to win back her old friends love!

This is one heck of a journey that I still cannot stop thinking about! My heart is still pounding!
If you enjoy a good mystery and psychological thriller then for sure this is for you!

Thank you to @NetGalley and to @Bookouture for this amazing ARC and allowing me to provide my own review.
Well done!
Profile Image for Farah G.
2,077 reviews44 followers
June 6, 2025
Emily and Ava stopped being friends for a reason, but now circumstances have allowed Emily back into Ava's life to her detriment. Ava is concerned about the house swap, instigated at the insistence of her own daughter, which will allow Emily access to her house, compromising her privacy. And of course, Emily has her own agenda.

But it is difficult to know at the outset what the dynamics really are here. Because both these women have secrets, but only one is in danger. Thanks to the twists and turns of this story though, you may have difficulty figuring out which one that is!

The pacing could be better, but overall, Leah Mercer has delivered an entertaining story. It gets 3. 5 stars.

I received a free copy of this book from Netgalley in exchange for an honest review
Profile Image for Kelley.
228 reviews1 follower
April 3, 2025
Best friends are always there for you. It’s how it should be? But what if your friend has a deep, dark secret? Emily and Ava were friends since they were pregnant with their children. 11 years later, they’ve grown apart but circumstances lead them to switching houses for a few days…and secrets start to come out of the woodwork.

I loved how quick and easy this book was to read and how the chapters were pretty short. I never trusted one if the main characters, which turned out to be a good idea. There was just a lot going on in a little bit of time that it seemed rushed.

Thank you Bookouture, Leah Mercer and NetGalley for the ARC. All opinions stated are my own.
Profile Image for Sue.
849 reviews
April 6, 2025
Ava has isolated herself since an event in her past.
She keeps her daughter close and has emotionally distanced herself from her husband, as she cannot come to terms with what happened.
Emily used to be a friend of Ava's, and is keen to come back into Ava's life.
But Emily has secrets of her own.

This is a very good read. Really keeps you on the edge of your seat, needing to know what those secrets are.
Your head will spin when they are revealed!
The only characters I really liked were the children. Both needing attention and love.
Very sad in a way, because we don't realise that children will remember the time the parents spend with them, but not the gifts they are given.
Profile Image for Maja.
291 reviews8 followers
April 8, 2025
First, as always, thank you Netgalley and Bookouture for this ARC!

In this story, we do follow Emily and Ava. They have been friends once, until Ava stopped speaking to Emily. And Emily... well, Emily did not accept it, worming her way into Ava's life when her daughter has troubles sleeping in their home. She does suggest a house swap. Ava does agree, but very soon, wished she had not... because both Emily and Ava have secrets they do need to stay hidden...

Very twisty, told in the POV of Ava, Emily and also Lexi - Ava's daughter - pulls you in from the very first page, not letting go until the very end. Another freath book by Leah Mercer and very much recommended!
Profile Image for Jennifer TW.
106 reviews3 followers
April 8, 2025
Alex and Emily were once friends - they bonded through pregnancy but then grew apart when their babies were infants. Now, years later, their children attend the same school and one night, a neighbour of Alex is injured during a burglary. She feels unsafe at home and Emily, keen to resurrect their friendship, offers a house swap. But Alex is hiding something from her past, and so is Emily.
This is a dark twisty thriller which is well plotted. I really enjoyed it and didn’t expect the final twist. Definitely recommend. Thanks to the publisher & author for an ARC in exchange for an honest review
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