My Sister’s Secret

by Jane Corry

A gripping and emotional suspense about two sisters and the dark past that binds them, from the eight-time Sunday Times bestselling author.

'JANE IS THE QUEEN OF FAMILY MYSTERIES' ANDREA MARA

Two sisters, bound by a secret that could tear them apart . . .

Rosy is the responsible one, well-behaved and organised. Amy is the free spirit, always breaking the rules. But despite their differences, they can never be apart. Only they know what happened that day and one wrong move could destroy them both.

When Amy confides in her new psychiatrist, he begins to suspect one sister is covering for the other. His gut tells him to run, but his own dark past draws him ever closer to the two women, and they to him.

As cracks form in the sisters' carefully constructed facade, one thing becomes three's a crowd, and one of them has to go.

Genres: Psychological Thriller, Thriller, Suspense

476 pages, Kindle Edition

Published June 18, 2026

About the author

Jane Corry is a Sunday Times and Washington Post best-seller. After working as a journalist for many years, she took a job as a writer in residence of a high-security male prison out of financial necessity. But she became hooked.

Novels include MY HUSBAND'S WIFE, BLOOD SISTERS, THE DEAD EX, I MADE A MISTAKE, I LOOKED AWAY, THE LIES WE TELL, WE ALL HAVE OUR SECRETS,COMING TO FIND YOU and I DIED ON A TUESDAY. Her next novel come out in June 2025. Title to be announced soon!

She is published by Penguin in the UK and Doubleday in Canada and the US.

You can find Jane on Twitter, Instagram, Tik Tok, Threads and Facebook . Also on www.janecorryauthor.com

Reviews

[Mandy White (mandylovestoread) · Rating 4 out of 5]

This is one messed up family!

Amy and Rosy are sisters who have never been particularly close but they will do anything to protect each other. After an incident 4 years earlier, younger sister Amy is receiving treatment at a private mental health facility under the care of the charming doctor James Starling.

This is a family drama with a lot going on. It is a long book but it did seem to fly by. It was a little slow in parts but when the action came it really did ramp up. So many secrets, every character had them and was not to be trusted. A story of family, betrayal, love and forgiveness.

I do love how this author really fleshes out her characters, the reader really gets a lot of time to get to know each of the main players.

Thanks to Penguin UK for my copy of this book to read.

[Gordon Smart · Rating 2 out of 5]

I’ve read a couple of Jane’s other books and enjoyed them but this one didn’t work for me. It’s about two sisters Amy and Rosy with sibling rivalry and a dark past, one of whom is in a private psychiatric hospital. They both become involved with a doctor, James, there who has a dark past of his own. Sounds promising? Unfortunately the plot spins out of control and there’s just too much unbelievable stuff thrown in. The other problem with the proof copy I read was that there were a number of times where the narrative viewpoint, which alternates between the three main characters from chapter to chapter, switched unexpectedly mid-chapter to a different character’ viewpoint and this didn’t seem to fit. Hopefully it can be re-edited before publication. Thanks to Netgalley and Penguin for this ARC in return for an honest review.

[Lydia Bailey · Rating 2 out of 5]

I’ve read a few books by Jane Corry in the past which I’ve really enjoyed. They’re always original, fast-paced & full of suspense. I enjoyed the beginning of this one & was intrigued to see where it was going. However, at about 25% in, everything seemed to become very far fetched and then spiralled into a series of ever more unlikely scenarios. Characters seemed to do personality flips and there was no actual plot just one disaster after another. Although I kept reading & wanted to know what happened, I lost faith in it & the ending was a bit of a damp squib. All in all- disappointing. I try never to give less than 3* & I’m amazed I’m only giving 2* to this author & publisher but I felt at the very least it needed further shaping.

Thank you to Net Galley for the ARC.

[Kim Carter · Rating 3 out of 5]

3.5*

[Roz · Rating 4 out of 5]

Great pacy story with fabulous intriguing characters who you can love and hate, changing as the author leads the reader through the book.

Amy and Rosy grew up with a mother who couldn’t cope with them or the fact that their father had left the family home. One is sectioned for dangerous behaviour and the other dutifully cares for her mother.

As we learn more the background of the family and meet the staff at the institution that is caring for Amy the story becomes darker and takes an unexpected tone.

Told as a 3 person narrative by the sisters and James, a psychologist, the past and future become closer and the sisters learn about themselves and uncover truths that lead to devastating consequences.

This is a really good thriller and one that I would definitely recommend.

[Rachel Dunne · Rating 4 out of 5]

✨NetGalley ARC Review✨
4.25 ⭐️

This was my first book by Jane Corry and it won’t be my last. I’ve discovered a new author whose work I really enjoyed which is one of the many reasons I love NetGalley. My thanks once again to NetGalley and Penguin for the ARC.


The story follows troubled sisters Amy and Rosy, who couldn’t be more different from one another. Their fractured relationship is held together only by a devastating secret that has the power to destroy both of their lives. It seems they are destined to spend their lives avoiding each other until Rosy meets Amy’s psychiatrist, the charming yet allusive Dr. James Starling. From that moment on, everything changes and their lives are set on a course that there is no coming back from.


From the very first page, Jane Corry had me completely hooked. The short, cliffhanger chapters demanded my attention and I ended up devouring the book in just two sittings. Her ability to create complex, multilayered characters reminded me of Liz Nugent. Much like Nugent’s novels, Corry’s characters exist firmly in the grey area no one is entirely good or badThis was my first book by Jane Corry, and it certainly won’t be my last. I’ve discovered a new author whose work I thoroughly enjoy, which is one of the many reasons I love NetGalley. My thanks once again to NetGalley and Penguin for providing me with an ARC.
The story follows troubled sisters Amy and Rosy, who couldn’t be more different from one another. Their fractured relationship is held together only by a devastating secret that has the power to destroy both of their lives. It seems they are destined to spend their lives avoiding each other—until Rosy meets Amy’s psychiatrist, the charming yet enigmatic Dr. James Starling. From that moment on, everything changes, and their lives are set on a course from which there is no turning back.
From the very first page, Jane Corry had me completely hooked. The short, cliffhanger-filled chapters demanded my attention, and I ended up devouring the book in just two sittings. Her ability to create complex, multilayered characters reminded me of Liz Nugent. Much like Nugent’s work, Corry’s characters exist firmly in the grey area and nobody is quite who they appear to be, which I absolutely love in the books that I read.

The plot was well paced and while I did predict one of the major twists, the numerous smaller twists that were by no means less impactful more than made up for it. It takes real skill to make a reader both despise and sympathise with a character at the same time and Jane Corry achieves this brilliantly. By the end, she left me completely undecided about certain characters, something I always appreciate in a psychological thriller.

One part of ending felt particularly rushed to me and given the background for two of the characters involved, I felt like it deserved a little bit more.

However, I’m very much looking forward to exploring more of Jane Corry’s backlist. Thank you again to Jane Corry, NetGalley and Penguin for the arc.

[Jackiesreadingcorner · Rating 3 out of 5]

Rosy and Amy are sisters, but their relationship has never been close. Rosy was several years older than Amy, and Amy had never been an easy child. She always wanted her own way, if she didn’t get her own way she would throw herself on the floor, a behaviour you see in toddlers, but Amy had never seemed to grow out of them, leaving their mother struggling to cope while their father was constantly at work. The father’s input was to be more firm!

Everything changes one night when their father comes home and announces he is leaving them. He has been seeing someone else and claims he had been waiting for the girls to be old enough for him to leave. But is there ever really a right time?

After he leaves, Amy’s behaviour becomes even more troubling, eventually leading her to burn down the house. Their father never attempts to see them again after he has left, but why? Amy eventually is institutionalised, while a dark secret remains hidden between the sisters and their mother. A secret that should never come to light.

A new psychiatrist begins working at the hospital where Amy is being treated, and he believes Rosy may be able to help Amy recover. After all, it has been four years since Amy was admitted, and since the sisters last saw one another. When Rosy arrives, she meets Dr James Starling for the first time, though Amy is furious and does not want her there.

What really happened to their father? Why did he never return? James also seems to have secrets of his own, and the dynamic between him and the sisters is at times unsettling and unprofessional. Alongside this, the secrets their mother kept hidden for so long seemed cruel to a certain extent. It wasn’t just James’s behaviour in the psychiatric hospital that raised red flags, another member of staff was also doing things I would not have expected. The story is told from the points of view of Rosy, Amy and James, how reliable are any of them as narrators?

There are plenty of twists throughout the story and, at times, I felt some of them became a little excessive. However, the book still kept me engaged throughout. James professes to love Rosy, yet at the same time he is plotting behind the scenes. While he may have had a difficult upbringing, it still does not excuse some of his actions.

The ending delivers even more twists, which perhaps pushed things slightly too far and made parts feel a little implausible.

Overall, this is an interesting psychological thriller that keeps the reader engaged with its many twists and turns, although it may have been just a little too long.

Thank you to @penguinrandom for an ARC of this book in exchange for an honest, fair and unbiased review, all thoughts and opinions are my own and have not been influenced in any way.

[Kath · Rating 3 out of 5]

Looking back at my history with this author and I do appear to have a bit of a hit and miss relationship with her! Of the 8 books I have previously read, I have 5 five star ratings and 3 three! Sadly, this book fell into the latter category as, tbh, although it started off well, it kinda degenerated into something a bit (very) over the top and a bit (very) far fetched.
We start with Rosy visiting her sister Amy who is in a private psychiatric hospital. They have been estranged for years and it is only due to Amy's psychiatrist James that she has agreed to visit. He believes that seeing her could give Amy the nudge she needs to maybe progress in her healing.
He also thinks that Amy is hiding something also key to her recovery and that maybe Rosy will let it slip what... Amy is a bit in love (lust) with James and the attention she feels he is paying her sister upsets and annoys her...
So yeah... it starts off well enough. But then, as I already said, it degenerates swiftly into the realms of fantasy and indeed farce with the author introducing twist after unbelievable twist, as the characters just start to become caricatures of themselves, ever undertaking personality changes along the way!
There are so many secrets and lies, and more than necessary dysfunctional behaviour that I just lost track of who I was supposed to be rooting for. We have quite a bit of foreshadowing and hinting at bad stuff in the past, and also secrets, but when revealed, it just beggars belief...
There's no real coherent plot that I could fathom. More just a catalogue of disaster after shock and, even though I did manage to get through to the end, I was left with the feeling of "what on earth have I just read!?"
I think three stars is pretty generous. But all the above said, I did finish the book and, well, it didn't drag, and was, despite all the eye-rolling, quite entertaining. Just the mere thought of what on earth the author could throw at the sisters next time kept me going!
All that said, I'm still going to pounce on her next book as soon as I can. And hope it falls into my opening paragraph's former category
My thanks go to the Publisher and Netgalley for the chance to read this book.

[bookedupnurse · Rating 4 out of 5]

3.5 ⭐️ rounded to 4:

Two sisters bound by a secret that could tear them apart …

Rosy is the responsible older sister and Amy is the free spirited one. It has been the same all their lives. They have never been close, but between them, there is a family secret that they have sworn to keep that keeps them intertwined, no matter the cost.

When Amy confides in James, her new psychiatrist at her Private Mental Health Rehabilitation Centre, he begins to suspect that things within the family aren’t quite as they say and one sister is covering for the other. Despite all the red flags he is instinctively getting from each sister and their relationship, he realises they may just be his ticket to safety. As his own dark past comes to the surface, he knows he needs protection and as he gets closer to discovering their secret, they draw closer to him … with devastating consequences.

As cracks begin to form in the sister’s facade, something becomes clear. Three is a crowd, and one of them has to go …

Told across the POV of Rosy, Amy and James, we see the speed and feel the urgency in which the relationships change within the trio. However, it also allows us to see their true personalities and how quickly their mask’s slip! JC is so good at creating morally grey characters. She leaves you unsure who you should be rooting for!

Short cliff-hanging chapters, multiple secrets and lots of twistyyyyness! This is a good domestic thriller … and that prologue!! 👀 an unsettling, dramatic read that discusses boundary issues, unprofessional relationships, childhood trauma and vulnerability.

Such an amazing beginning, loved the premise and the difference in character personalities but at times, the book felt a little drawn out and far fetched and IMO, there are a few areas that could have easily been cut without affecting the story and would keep the suspense hot! 🥵

Thank you to NetGalley, Penguin and Jane Corry for the ARC of this book in return for an honest review.

[Leanne · Rating 3 out of 5]

Thank you to NetGalley and the publisher for the opportunity to read this book in exchange for an honest review.
This story follows sisters Rosy and Amy, who share a dark secret from their childhood. After their father “disappears,” Amy is institutionalised for five years, believed to be responsible for his death — something their mother insists must never be spoken about. The premise is intriguing and definitely kept me reading.
I’ll say upfront that I was engaged throughout, but the book felt very long — almost as though it could have been two separate stories. The pacing dipped in the middle and at times became repetitive.
Some of the twists didn’t surprise me, particularly the revelation about their father, but what I struggled with more was the logic behind certain plot choices. I couldn’t understand why the father never contacted his daughters, or why the mother allowed them to believe he was dead for so long. The handling of Amy’s time in the psychiatric hospital also felt uncomfortable and, at times, unrealistic.
Dr James Starling’s character added another complicated layer. The dynamic between him and both sisters was unsettling, and some of his chapters were particularly difficult to read. His behaviour — especially when he claims to love Rosy while actively plotting harm — felt disturbing rather than suspenseful. I also found the justification of misogynistic behaviour through a difficult childhood troubling. There’s no excuse for violence towards women, and that aspect didn’t sit well with me.
The final stretch became increasingly implausible, with a few twists too many, which made the ending feel slightly over the top.
Overall, the story held my attention and I did want to know how it would end, but the length, uncomfortable dynamics, and far-fetched conclusion lowered my rating slightly for me.

[Gary · Rating 4 out of 5]

My Sister’s Secret, is the new novel by Jane Corry. The novel deals with the claustrophobic and often dangerous ties that bind siblings together.

Rosy, is the responsible, organised sister and Amy, the rebellious free spirit who has never met a rule she didn’t want to break. However, once we learn more about the sisters it reveals that their personalities are less about nature and more about a shared survival strategy. They are “bound by a secret” from their past, one that has dictated every move they’ve made for years.

When Amy begins seeing a new psychiatrist, she starts to confide in him and the professional boundaries begin to blur. He suspects that the sisters’ “carefully constructed façade” is a shield, with one sister potentially taking the fall for the other’s crimes.

The psychiatrist is no impartial observer and is haunted by his own “dark past,” this adds another layer to the novel. As he draws closer to their secret, the sisters draw closer to him, creating a volatile triangle where “three’s a crowd.” It becomes difficult to identify who is truly the “victim” and who is the “protector.” It is only going to be a matter of time before an inevitable collision. When a secret is the only thing keeping you safe, anyone who learns it becomes a threat that must be neutralised.

“Rosy and Amy are two sides of the same coin, but the psychiatrist is the one who flips it. The problem is, once the coin is in the air, nobody knows where it’s going to land.”

I would like to thank both Netgalley and Penguin UK for supplying a copy of this novel in exchange for an honest review.

[Nessa’s Book Reviews · Rating 4 out of 5]

Jane Corry really looked me in the eyes and said “you know what you need? Trust issues.”

My Sister’s Secret had me suspicious of EVERYONE. Every conversation. Every memory. Every tiny little detail. I was reading like a detective who drank too much caffeine and lost the ability to relax.
This book is PACKED with tension.

You’ve got two sisters who are complete opposites. Rosy being the organised “I have my life together” one and Amy being the chaotic free spirit who definitely makes life choices that would stress me out personally but underneath all of that is this huge dark secret tying them together. And the way the truth slowly unravels?? Absolutely addictive.

I kept changing my mind every five minutes. One second I was convinced I knew what happened, the next Jane Corry would casually drop another twist and I’d be sat there staring at the wall reconsidering everything.

Also can we talk about the psychiatrist storyline because SIR… maybe stop getting emotionally involved with clearly unstable people but obviously that only made it MORE entertaining. Everyone in this book is carrying baggage, secrets, trauma, questionable decisions… basically my favourite kind of messy suspense.

What I loved most was how emotional it felt underneath all the thriller chaos. It’s not just twists for the sake of twists.

The atmosphere was tense the whole way through and I genuinely didn’t know who to trust until the very end. Family drama + psychological suspense + morally messy characters? Inject it directly into my veins.

Definitely one for fans of domestic thrillers that keep you hooked and slightly emotionally damaged

[alisdiscovers · Rating 5 out of 5]

My Sister’s Keeper by Jane Corry is a psychological thriller that builds tension from the very first chapter and never really lets it go.
One of the most effective elements of this novel is its structure. The chapters are short from the outset, which creates a fast, urgent pace that immediately draws you in. Each chapter is headed and narrated by one of the three main protagonists, and this rotating perspective adds real depth to the storytelling. It allows you to see the same events through different eyes, and slowly piece together the truth from conflicting versions of the story.
The effect is almost like a conversation unfolding between the characters, each one holding something back. Secrets sit just beneath the surface, constantly hinted at but never fully revealed straight away. This creates a strong sense of unease and curiosity throughout.
The narrative feels like an onion being carefully peeled back, layer by layer. Just when you think you’ve uncovered the truth, another twist is revealed, shifting everything you thought you understood. It’s this constant teasing of information that makes the book so addictive and keeps the pages turning quickly.
Corry does a strong job of maintaining suspense, balancing emotional tension with psychological intrigue. The pacing encourages “just one more chapter” reading, which makes it very easy to get pulled in for longer than intended.
Overall, this was a gripping and cleverly structured psychological thriller. While some twists may feel deliberately drawn out, the layered storytelling and multiple perspectives make it an engaging read that steadily builds to a satisfying level of tension and revelation.

[Brenda · Rating 3 out of 5]

Siblings, Rosy and Amy, loved each other, but were often at odds. Amy was flighty, with surges of anger followed by calm. Rosy was responsible, always trying to do the best for their mother and her sister - it was only the three of them after their father had left to be with another woman. But when Amy was put into a mental institution after a breakdown, she became sly and a convincing liar. When she met the new psychologist, she fancied him, sure he loved her. She set a plan in place. But then he met Rosy and liked her better...

After Rosy and Amy's mother died, it was just the two girls. Rosy went to stay at the family Beach Cottage, where she was happy, helping run the surf shop and working in the take away store. But trouble would come looking for her, as well as Amy. The secrets that they were both hiding were looking to crack. And then there would be no turning back. What would happen to a fragile but aggressive Amy? Could Rosy keep going as she was?

My Sister’s Secret by Jane Corry is a deep, dark psychological thriller with plenty of twists and turns, some I saw coming, some I didn't. It also dug into the realms of being over the top and unbelievable. Although it was drawn out and far-fetched at times, I did mostly enjoy the plot. Recommended to fans.

With thanks to NetGalley & Penguin UK for my digital ARC to read and review.

[Leanne · Rating 4 out of 5]

My Sister’s Secret is Jane Corry doing what she does best: taking a seemingly ordinary family bond and peeling it back to reveal something far more complicated — and far more dangerous. From the first chapter, there’s this simmering tension between Rosy and Amy that makes you lean in, knowing their shared past is going to explode sooner or later.

The contrast between the sisters is so well drawn: Rosy, steady and controlled; Amy, impulsive and unpredictable. But Corry never lets you settle into easy assumptions. The secret that binds them is teased out with just the right amount of restraint, and every new reveal shifts your understanding of who’s protecting whom.

James, the psychiatrist caught in their orbit, adds another layer of intrigue. His own troubled history makes him both vulnerable and suspicious, and watching him get pulled deeper into the sisters’ world gives the story a deliciously claustrophobic feel.

What I loved most is how the tension builds quietly at first, then sharpens as cracks begin to show. The psychological undercurrents, the shifting loyalties, the sense that someone is always one step away from doing something irreversible — it all comes together in a way that feels both emotional and genuinely gripping.

A compelling, twist‑laced family mystery that keeps you turning pages and questioning every motive. Jane Corry proves once again why she’s such a standout in this genre.

with thanks to Jane Corry, the publisher and netgalley for the ARC

[Cleopatra Pullen · Rating 3 out of 5]

My Sister’s Secret introduces us to two sisters who couldn’t be more different: Rosy, the responsible one, and Amy, the rule‑breaker. Between them lies a secret they’ve sworn to protect at any cost. When Amy begins confiding in James, her new psychiatrist, he quickly senses that something isn’t right and that one sister may be covering for the other, and that he’s being drawn into a dynamic far more dangerous than he realises. As the cracks widen and the trio becomes increasingly entangled, it becomes clear that three’s a crowd, and someone isn’t going to make it out unscathed.

It’s a strong, dramatic premise, and on paper it promises tension, psychological complexity, and shifting loyalties. But for me, the execution never lived up to that potential. The plot stretched credulity to the point where it became difficult to take seriously; several developments felt so far‑fetched that they pulled me out of the story rather than building suspense. What should have been dark and gripping instead veered into the implausible.

My other stumbling block was the characters themselves. I didn’t care for any of them, not Rosy, not Amy, and not James. Their motivations felt inconsistent, exaggerated, or simply unconvincing, which meant I never formed the emotional connection needed to care about the fallout of their choices. I did read to the end, but more out of momentum than investment; without that connection, the final reveals didn’t land with much impact.

A read with a promising setup, but ultimately one that didn’t resonate with me.

[Ceecee · Rating 2 out of 5]

2.5 stars

Two’s company, three’s a crowd or maybe deadly. This ménage a trois concerns siblings Amy and Rosy and Dr James Starling. Amy has been in and out of mental health institutions for years, making little discernible progress. What lies at the heart of her extreme reaction when her older sister Rosy arrives at St Cuthberts at the invitation of Dr Starling? Deeply buried secrets or extreme sibling rivalry?

I’ve read quite a few Jane Corry novels over the years and enjoyed them, however, this one greatly disappoints me. I don’t find the characters at all convincing especially that of Amy who appears to be more like a petulant child than anything else. It’s far too long and the author keeps chucking things into the narrative, creating an unbelievable and over egged plot. Some things seem to be irrelevant and others, such as long-term situations, are resolved in a sentence. There’s twist after twist until it gets totally outlandish. Finally, it’s not particularly well written either with short sentences and paragraphs making it feel very basic.

This is far from the authors best work in my opinion although it’s fair to say that other readers have enjoyed it way more than I have, so be sure to check those in order to get a balance of view points.

With thanks to NetGalley and especially to Penguin General UK for the much appreciated early copy in return for an honest review.

[Lovetoread2023 · Rating 5 out of 5]

This was an addictive read from the very first page. I was completely hooked straight away and stayed that way throughout the entire book. The characters are intriguing from the start, and the story is told from the points of view of Amy, Rosy, and James. The twists and turns are so good—and genuinely unexpected. Just when you think you’ve figured things out, another twist pushes you two steps back. It’s one of those stories that constantly keeps you guessing and questioning what the truth really is. Can you trust the person telling the story? What you see is definitely not always what you get in this domestic psychological thriller.
Mental health plays an important role in the storyline, adding another layer to the tension and is handled in a way that makes the story even more compelling. One thing I particularly loved is that every single character seems to have a secret. It’s unusual, but it works brilliantly here and really highlights Jane Corry’s talent for writing suspenseful, gripping thrillers. You think you know the answers, but the author skillfully keeps you off balance right until the end.
And what an ending! The reveal was unexpected and incredibly satisfying. There’s also a certain comment near the end that didn’t get a follow-up, which has me hoping we might see more connected to this story in the future.
You can always rely on a Jane Corry book to deliver, and this one did that and more.

[Andrea · Rating 3 out of 5]

Review of ‘My Sister’s Secret’ by Jane Corry, due to be published on 18 June 2026 by Penguin General UK - Fig Tree, Hamish Hamilton, Viking.

Two sisters, bound by a secret they have sworn never to tell.  Amy - living in a mental health institution never recovering from the events of the night her father left home, and Rosy - the older sister left behind to live her life, not wanting to see Amy for fear of the truth coming out.

When Amy gets a new therapist, the seemingly dashing Dr James Starling, he thinks he can help Amy by speaking to Rosy. He feels an attraction to Rosy, not realising that Amy has crossed over into being infatuated with him, prepared to get out of the institution and have him for herself whatever the cost, but James hides dark secrets of his own that he is desperate to keep hidden.

This was a punchy story, told across three points of view, telling the unhinged truth of what is being hidden together with unsettling backstories of abuse and neglect. Whilst both Rosy and Amy are strong characters, you find yourself willing them to see the red flags in front of them, James leaving you with a growing sense of unease and questioning his every move.  It’s tense, unnerving and unflinchingly raw in its depictions of mental health crisis. There are twists and turns aplenty tied up in a bow for satisfying ending.  A recommended read.

[Loraine · Rating 4 out of 5]

Thanks to Jane and NetGalley for allowing me to read My Sister’s Secret before the publication date.
Secrets are the author’s stock in trade and this book has an abundance of them.

Each chapter is narrated by a character who presents their view of events, pulling the reader into the story and giving an insight into each character….until gradually a different side of their character is revealed.

Older by 7 years, Rosy recalls how her childhood was disrupted when Amy was born.
Difficult from a young age, Amy is demanding, devious, manipulative, full of rage and quick to throw tantrums.
By the age of 16, she was using drugs. The night her father left home, Amy had a mental breakdown resulting in her being sectioned.
4 years later and she remains in a private mental health rehab unit, yet she still uses the same traits to gain control.

Consultant Psychiatrist Jame Starling ( the choice of name conjured up images of a horror film) has arrived with new techniques and a bag full of therapies.

When Rosy is asked to talk to Starling, Amy is infuriated that he is paying attention to Rosy.
With the secret the sisters share, will one of them reveal it?

But they are not the only people with secrets.

[Mrs · Rating 5 out of 5]

Another good book read and enjoyed. Rosy was 7 when Amy was born and things became difficult for her in her childhood. Amy was a difficult child, always getting Rosy into trouble and was very manipulative. They grew apart but then something happened in the family to make matters worse. Amy was always getting into trouble and did not take any notice of home rules. By the time she was 16 she was off the rails and staying out late and mixing with the wrong crowd. Amy came home one evening and everything went awry. Amy had a mental breakdown and was sectioned. The psychiatrist at the hospital changed and Dr Starling started working there. Amy became infatuated with him and this lead to an unwanted pregnancy. In comes Rosy to bend to Amy again . Amy wanted Rosy to take care of the baby as she was not capable or interested in doing so. One thing leads to another and after visits by Rosy visiting Amy James Starling becomes infatuated with Rosy which leads to more mental trauma for Amy when she realises that James in not at all interested in her at all. The book continues with so many twists and turns by the trio and eventually things do right themselves in the end although it takes many steps by the sisters in achieve this. Good book

[Pauline Cooper · Rating 5 out of 5]

I love Jane Corry’s books that seemingly take a normal family and create the most awful circumstances that affect their lives in the most profound ways. In this book sisters Amy and Rosy absolutely despise each other, with some just cause and others jealousy or plain and simple annoyance. As we meet them Amy is living at a mental health facility due to the ingoing issues she has that have devastated her family. Many of her problems stem from the night her father left the family home. Rosy visits her sister who is abusive and doesn’t want to see her. She then meets her psychiatrist James who is sympathetic and invites her for a chat to see if he can discover the root cause of Amy’s problems. It is difficult to say more without giving away spoilers but this book delivers the most twists I’ve ever read in a story and I wondered how much more could happen when suddenly there would be more catastrophic drama. It really is a clever book that weaves its devious plot into what is basically a story of strong emotions that can totally wreck lives. I noticed the brief reference to a previous book - it sounded too familiar to be a coincidence and then I found the confirmation in the notes at the end. I really enjoyed this book as I always have from this exceptional and imaginative author.

[Kirsten · Rating 4 out of 5]

Review of advance copy received from NetGalley

My Sister’s Secret by Jane Corry is a fast-paced thriller where nothing is quite as it seems.

Amy and Rosy are sisters bound together by a dark history and a secret surrounding the night their father disappeared. Amy, who has experienced a troubled past, is recovering in a private psychiatric facility when she meets the charismatic Dr Starling. Yet it quickly becomes clear that Dr Starling is carrying secrets of his own.

What I particularly enjoyed about this novel was just how bingeable it felt. The short chapters, constant revelations and steady stream of twists made it incredibly readable. The characters are wonderfully unreliable and the shifting dynamics between them help maintain a strong sense of tension throughout.
However, I found myself somewhat torn when it came to rating this one. While I certainly enjoyed it, I also found aspects of the characterisation a little problematic, particularly as some developments felt so heightened that they required a fair degree of suspension of disbelief. That said, questions of plausibility aside, it was undeniably an entertaining read.

Readers who enjoy contemporary thrillers, particularly fans of Freida McFadden and similar writers, will likely enjoy this.

[Hannah · Rating 3 out of 5]

Rosy arrives at private mental health facility, St Cuthberts, to discuss her sister Amy, who is a patient there, with psychiatrist James. The relationship between the sisters has always been turbulent and James comes to suspect that maybe both sisters are hiding secrets. Only James is also hiding his own dark past. As cracks begin to form, it becomes clear that three is a crowd and one of them has to go.

I’ve enjoyed the majority of the Jane Corry books I’ve read and always know that I am going to get a multi layered, compelling story. This was another interesting concept, however the execution didn’t quite work for me. I found that the storyline was overly convoluted and chaotic at times, which did not help with the natural flow, meaning it was hard to follow. There were plenty of twists and turns, which were fun, however it did occasionally feel a bit too unbelievable and confusing. Even so, there was something that kept me drawn in and it was entertaining to find out what would happen next.

Even though not a favourite of mine by this author, I’ll definitely continue to read her books and recommend her to other readers. Especially those who enjoy thrillers full of drama. Thanks to NetGalley and the publisher for this copy in return for an honest review.

[Teresa Nikolic · Rating 4 out of 5]

Rosy and Amy are sisters, with Rosy being the older and more sensible one and Amy being the reckless free spirited one, but neither of them have been the same since their dad left and they harbour a dark secret which can never be revealed, a secret that caused Amy to have a breakdown and spend the last five years in a psychiatric facility. This is where she meets Dr. James Starling, her psychiatrist and he's drawn to both her and Rosy and their dark past, especially when he thinks one sister is covering for the other but, the sisters aren't the only ones with a secret now are they James?

My Sister's Secret is the latest thriller by this author, told from the perspectives of all the main characters it starts off rather slow but soon picks up the pace with some surprising twists along the way. It's a well written story, far fetched in places, I didn't really connect with any of the characters and found a couple of them to be totally awful, but then I guess this added another edge to the story in a weird kind of way. This was a tale of two sisters who'd never really got on all through childhood, there was always that sibling rivalry between them, but would they step up when most needed and finally be there for each other? An intriguing read by an author I've read many times.

[Charlotte K · Rating 4 out of 5]

My Sister’s Secret is everything I love about a Jane Corry novel: fast‑paced, emotionally charged, and brimming with twists that keep tightening until the final pages. From the very first chapter, the tension between Rosy and Amy pulls you in — two sisters bound not just by blood, but by a secret powerful enough to destroy them both.
Rosy, the steady and responsible one, and Amy, the impulsive free spirit, are such sharply drawn characters that you feel the strain of their bond with every chapter. When James, Amy’s new psychiatrist, enters the picture, the story takes on an even darker, more unsettling edge. His suspicions — and his own complicated past — add a brilliant layer of psychological intrigue. You’re never quite sure who’s telling the truth, who’s hiding what, or who might be manipulating whom.
As the cracks in the sisters’ story begin to widen, the tension becomes deliciously claustrophobic. The sense that “three’s a crowd” hangs over every interaction, and Corry plays with that dynamic masterfully.
Fast, twisty, and impossible to put down, this is Jane Corry at her best. Fans of psychological suspense will devour it.

[Donna · Rating 4 out of 5]

My Sister's Secret by Jane Corry was an absolutely captivating read. From the very first chapter, I was drawn into the story and found myself constantly wanting to know what would happen next.

What I enjoyed most was the way the author blended family drama with psychological suspense. The characters felt believable and complex, and their secrets slowly unravelled in a way that kept me guessing throughout. Just when I thought I had everything figured out, another twist would appear and change my perspective.

Jane Corry does a fantastic job of exploring relationships, trust, and the impact of past events on the present. The story is emotional as well as suspenseful, which made me feel invested in the characters and their journeys.

The pacing was excellent, and I found it difficult to put the book down and read it in 48 hours. Overall, this was a compelling and thought-provoking thriller with plenty of surprises along the way. I would definitely recommend it to fans of psychological thrillers and family mystery

Thank you Penguins General Uk for this ARC in exchange for an honest review

[Kayl_may · Rating 5 out of 5]

Having read my first Jane Corey book last year and absolutely loving it, I was excited to be offered the chance to read her new novel. The synopsis sounded right up my street and it did not disappoint!

The story revolves around two very different sisters Amy and Rosy, a secret that binds them together and their involvement with Amy’s psychiatrist James, who has a dark past of his own.

I was gripped from the first chapter, and found it a real page turner. There was lots going on and always that feeling of unreliable narration which added to the suspense. I literally didn’t know how the story was going to unfold and that kept me fully engaged throughout.

The story is told through Amy, Rosy and James’ perspectives which made it an even more engaging read as you got to see things from all parties which I always enjoy. I’d recommend this to any psychological thriller reader.

I’m excited to read more from her back catalogue!

Thank you to Jane Corey’s team at Penguin General and NetGalley who provided me with an advanced readers copy of this book in exchange for an honest review.

[Karen · Rating 4 out of 5]

We meet sisters Rosy and Amy in the private psychiatric hospital where Amy is being treated by James for mental health issues which started when their father disappeared from their lives six years ago. Soon both sisters' and James's lives are inextricably linked - and the secrets each keeps threaten to come spilling out.
This is a real page turner., Told from Rosy, Amy and James's point of view, the narrative is fast-paced, with twists around every corner, and over-arcing tension and impending danger.
None of the main players is wholly reliable, and I was soon engrossed in trying to figure out what had happened in their pasts that made them the people they are now. At first, Amy is an obvious villain, very difficult to love, but continuing character development is an important part of the narrative.
Jane Corry may not be the most lyrical of writers but she certainly knows how to tell a thrilling story and how to get her characters under the reader's skin. I think this story cements her place on the best-sellers' lists.

[Victoria Baldin · Rating 4 out of 5]

My Sister’s Secret by Jane Corry
Rosy and Amy may be sisters, but they could not be more different. Rosy, who is older than Amy by eight years, is the responsible sister, characterised by her organised and well-behaved demeanor, Amy is the free spirit who completely ignores social conventions and rules.

Despite their contrasting lifestyles, the sisters are inseparable due to a singular event from their past—a day only they truly understand. This "Shared Secret" serves as the primary engine for the story's suspense, as any misstep by either sister threatens to destroy them both.

When Amy begins to see a new psychiatrist, James, the tension escalates as Amy begins to confide in him, James starts to suspect the sisters are hiding something. James has his own dark secrets that draw him closer to the sisters, leading to a dangerous situation where "three's a crowd" and their carefully constructed lives begin to crack.

I would like to thank Net Galley and Penguin General UK Publishers for a copy of this eBook in exchange for an honest review