Her Sister's Child: A heart-stopping psychological thriller with an incredible twist

She rolls over and reaches for her instinctively: her baby. Her hand hits air and flaps redundantly. She stumbles out of bed and switches on the light. But this only confirms it. The baby is gone. Someone has taken her.


Sixteen years ago, Lizzie Armitage woke to find her newborn baby gone. Just days later, Lizzie was dead.


Her sister Paula swore she would do everything she could to find the child. If she hadn't promised to keep Lizzie's pregnancy secret, maybe the baby wouldn't have disappeared. And maybe Lizzie would still be alive. But, in nearly a decade, Paula's never found any trace. Until now...


When Paula bumps into an old friend from the past, she realises she wasn't the only one who knew about her sister's child. Someone knows what happened that day. Someone knows where Lizzie's baby went.


But can Paula find out the truth before another family is ripped apart?


A twisty, unputdownable psychological thriller that will keep you hooked until the last page. Fans of Behind Closed Doors, Friend Request and The Girl on the Train will love Her Sister's Child.


Why readers love Alison James:


'Wow what a read!... I was up all night reading this... An absolutely gripping psychological thriller that will keep you guessing until the last page... Full of mystery and suspense with twists and turns to keep you on your toes, I was completely hooked... Gives you goosebumps.' Once Upon a Time Book Blog, ⭐⭐⭐⭐⭐


'WOW!!!!! Hooked from the first page and read this book in one sitting... Full of tension and suspense. A real page turner, a domestic noir but OMG so much more!!!!!' Goodreads Reviewer, ⭐⭐⭐⭐⭐


'Absolutely one of the best books I have ever read... Exceptional' NetGalley Reviewer, ⭐⭐⭐⭐⭐

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Published Nov 26, 2020

320 pages

Average rating: 8.33

3 RATINGS

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Community Reviews

April Hannum
Mar 16, 2026
10/10 stars
Thank you to NetGalley and Bookouture for the advanced copy of this book in exchange for an honest review!

Wow! It has been a while since I've read a book in one sitting, but Alison James has accomplished that for me with Her Sister's Child. The suspense of the story was established from the very first page, and I found myself reading into the early hours of the following morning to see what the outcome of the story became. The story is told from multiple viewpoints across a few different timelines of the story. It begins with Lizzie who just recently had a baby, or did she? The baby was lying right there, but now it is gone. Before any of it can make sense, Lizzie passes away with a lot of unanswered questions. The story then shifts to her younger sister, Paula who wasn't around for the birth but also finds the same scenario when she tries to see the baby. All of the things are missing that the baby would need, diapers, etc. The baby is gone, but her sister is lying there asleep. What has happened? As the story unravels with marriage and divorce amongst several characters in the story, infertility issues and pregnancies, unforeseeable tragedy and heartache abound in this novel that will grip you from start to finish!
ThrillerRach
Mar 03, 2026
10/10 stars
Told in multiple perspectives Her Sister’s Child is page-turner that will grip you from the very beginning and keep you gripped to the very end.
Lizzie Armitage is Paula’s older sister, unfortunately, is an addict and pregnant, she asks Paula not to tell anyone and Paula last saw her when she was in labour. A few days later Lizzie is dead and there is no sign of a baby. Paula tries to convince her mother there was a baby but because she was a young teen at the time no one believed her.
16 years later, after Paula has visited Lizzie’s grave on the day which would have been her 40th birthday she decides that she needs to look into where this baby is, she is certain Lizzie was pregnant and even though there was no baby found with the body she is convinced it was born.
She starts digging along with the help of her teen heartthrob Johnny and they start putting together the pieces of the mystery.
We also have Charlie, a young girl who had a slip-up and falls pregnant, her boyfriend stays with her because she has money but he is a pig, Spending HER money of flash cars, holidays, treating her like crap and disappearing. When the relationship breaks down and the baby is born, after a heart to heart with her parents she decides to move back in with her parents. The day of the move someone kidnaps her baby.
These two people and stories are interlinks with each other and told in several perspectives and in different timelines too.
I just could not put this book down, it was so intense, there were a lot of twists and turns along the way and I was completely engrossed in it until the very end.
The characters were so believable and it was true to life, the areas in the book were well described and just how you would probably see those areas on the TV.

Alison James wrote a fantastic book that will have you hooked from the very first page and it will stay with you. I would love to see either a film or a TV drama about it. I am sure a lot of people would like it.

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