This was a fast paced, suspenseful story. There were many twists and turns that kept me on my toes.
Many thanks to Crooked Lane Books and to NetGalley for providing me with a galley in exchange for my honest opinion.

A fantastic mystery thriller that kept me on the edge of my seat. I read this book in one sitting as I found it really hard to put down. Well written with strong characters. Highly recommended.

Once Two Sisters is a spell binding read. I couldn't read fast enough to see who was behind the acts. Zoe comes from a fractured family. Her parents were emotionally distant and detached. She was once close to her sister, Ava, but her sister makes a living off using Zoe in her books. Then Ava disappears. Zoe's new identity and life are blown and she's blamed for Ava's disappearance. Zoe has to clear her name, find her sister, and reclaim her life. The plot is sinister and sick, yet simple. I enjoyed this book and thought the ending was good.

Zoe’s been living a new life away from her family after changing her name to Lizzie. She refuses to let their toxicity spoil her new family. But when she hears her sister Ava has gone missing, and she’s the prime suspect, she must fly back East to clear her name, and find her sister. Even estrangement can’t break the bonds of sisterhood that formed in their cold home.

This was a fairly fast-paced read that was told in alternating timelines. I liked the fact Warburton used known government experiments to weave her story. It made it much more interesting to me. The thing that’s holding me from giving it five stars is how rushed the last chapter before the epilogue was. I felt it glossed over some issues and would have liked to see it expanded. But overall, this was a fun storyline to read. Thank you, Crooked Lane Books, for sending this along.

I received a copy of this book in exchange for my honest review.

The book started off very strong but slacker towards the middle when we got to different POV’s. I pushed through and thoroughly enjoyed the book despite the big twist becoming apparent pretty early on. At times I was wondering how this all would be tied together but am happy with the way things ended. I would recommend this book to friends.

A psychological thriller describing the relationship between two sisters and how it changes through their adulthood. There aren't much of twists and the conclusion is predictable as there's no other way to end it. The characters and why they changed their ways are not explained clearly . The narrative is fast and keeps you going. For a debut, this is a good effort. Maybe in the future endeavours the shortcomings would be dealt. Good luck 3.5 stars

Great book. I was hooked and very sad that the book had to end. It has a solid plot line. A very enjoyable book, with a great writing style.

Zoe Hallet has been hiding in plain plain sight for years. Her parents were cold, detached, and work obsessed while big sister, Ava, once her sole confidant, became a bestselling novelist by turning Zoe into the, only lightly disguised, main antagonist in her books and movie spinoffs. When everything she'd done had become fodder for Ava's vivid imagination Zoe fled, finally ending up in Texas, married with a young daughter and a life too perfect to even imagine.

The good things don't look as if they're going to last though, at least where Zoe is concerned, and when Ava disappears and she becomes a suspect Zoe faces losing everything because of the person she hates most. Determined to stop that happening and against her better judgement, she returns home because until Ava comes back her new life, husband and child are lost to her too.

I enjoyed this book and was amazed by the fact it was Sarah Warburton's first full length novel. My only problem is it is a little wordy in places when descriptive passages seemed to take over and although I read every word I could have skipped some sections without missing anything vital.

This is a dual pov novel, the main protagonists, Ava and Zoe, were likeable and, along with their families, were realistically drawn and worked well. Although a thriller, to me at least, that part of it was easier to work out ahead of time than the relationship aspects which caught and held my attention throughout; I wanted them to succeed.

I was able to read an advanced copy of this book thanks to NetGalley and the publishers in exchange for an unbiased review and would recommend it to anyone who enjoys standalone thrillers of a high quality from a new author who is definitely one to follow.

Books with multiple perspectives usually disappoint me. I usually end up fidgeting through one of them, waiting to get back to the grippiest or the main plot line. Once Two Sisters is the rare novel that managed to present two equally intriguing perspectives that had me flipping through the pages as fast as I could.

My one minor complaint is that there weren't any major twists. The whole book is full of WTF reveals, but not the kind that make you feel like you could have put the pieces together yourself. I love a stomach-dropping twist, but Once Two Sisters was well-written enough that there was still a lot of payoff at the end.

Super Creepy. Super Suspenceful. Super crazy. Keeps you guessing until the very end. Make sure you read this book in the daytime if you want to be able to sleep at night!!!!

Ava and Zoe are sisters. One is a New York times best selling author. Zoe has run off, left her self serving sister and dysfunctional parents behind. She's changed her name to Elizabeth, Lizzie for short. She's married to a wonderful man and has a four year old stepdaughter that she loves with all her heart.
Whenever she thinks of her sister she feels anger and maybe a little hate. Their parents are psychiatrists. They were so immersed in their work that there was not any time for the sisters. Everything was a study and they felt emotions were waisted.
Growing up in that kind of environment is the reason Zoe left. She wanted a normal life.
When Ava turns up missing the proverbial poo hits the fan. All the newspapers and news stations are carrying the story. Zoe has been outed. Everyone she now knows have learned how big a liar she is about her family and her past.
On the verge of losing her marriage she knows the only way to be absolved of her lies is to find the sister she despises.
Great storyline, strong characters! Titillating read!!

Psychological thrillers featuring battling sisters are common. This one is the best in a while. Ava is a worldwide successful novelist and Zoe lives in isolation estranged from Ava and their parents. Zoe will never go home again and is comfortable with her new life, featuring a new name, perfect husband and stepdaughter. Until Ava goes missing. Then all hell breaks out with Zoe begrudgingly coming to the realization that it may not be a publicity stunt and her new life shatters as Zoe needs to discover the truth. Dark, twisted, devious and enthralling!

Fast paced and thrilling.
I'm a big fan of thrillers and I really enjoyed this one!
It definitely had it flaws but as it's a debut novel I'm not getting much into that.
The twists and turns kept me on my toes and I was engrossed in the story, not even slightly bored by it.
I'm definitely looking forward to read more by this author!

Oo y’all this one was so creepy I seriously loved it so much!! A definite must read if I do say so myself. The characters were fantastic and the story line was amazing. Go read!

A bit weird, but definitely a good read. I was captivated until the end, characters were a bit strange, but hey, everything worked. Recommend,

This is a debut novel and it shows. I appreciated the premise and know there's probably a good twist near the end but the first five chapters didn't pull me in enough to keep me going.

I really loved this book!! It had so many twists and turns. It kept me on the edge of my seat wondering what was going to happen next!! This was my first book by this Author, and it won’t be the last!! Quick read!! Highly recommended!! You won’t be disappointed!!

Another enjoyable fast paced thriller! I liked the sisterly drama and twists and turns the plot had me guessing the entire time. Some of it I did skim over because I felt a little bored or like I've read this before. Overall, I liked this one and would recommend it.

Thanks to Netgalley for my advanced ebook copy.

Once Two Sister is a dark and twisty thriller that does not disappoint! Loved every minute of this easy but detailed read!
Thank you Netgalley and the publisher for a copy of this book in exchange for an honest review.

Zoe and her sister Ava have been at cross purposes for years. Zoe has tired of her sister’s dramatics and stopped all communication with her. She’s enjoying her life in Houston with her husband and stepdaughter when she hears that Ava has disappeared and that Zoe herself is suspected in the disappearance. Zoe returns to Virginia to prove her innocence and find out what really happened to Ava. Zoe’s old boyfriend is now Ava’s husband, and Zoe begins to wonder how much she can trust the man who loved both sisters. Is there a link between Ava’s disappearance and her scientist mother’s experiments? Is there any bond stronger than that of sisters? Zoe is about to find out.