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Not all who live behind bars are guilty,

And some who roam free prey, lurk, and prowl…

Having returned from a successful case among the mountains of Idaho, FBI Agent Allie Bishop is sent undercover to investigate strange happenings in a local prison. Inmates are going missing upon their release, and some are turning up dead.

Meanwhile, someone remains intent on seeing Allie dead, and any answers surrounding her mother’s disappearance continue to elude her grasp.

Don’t miss the next thrilling installment in the celebrated Allie Bishop FBI Mystery Thriller Series. Pre-order your copy now…

284 pages, Kindle Edition

First published November 30, 2024

1084 people are currently reading
114 people want to read

About the author

Eva Sparks

20 books172 followers

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5 stars
819 (68%)
4 stars
303 (25%)
3 stars
54 (4%)
2 stars
12 (1%)
1 star
7 (<1%)
Displaying 1 - 30 of 31 reviews
Profile Image for Tanya.
64 reviews
April 6, 2025
Oh, I enjoyed this one a lot! the only thing I wished was that we got to see the

I'm surprised on how much I like Ethan, I can't wait to see more of him.

Eva makes side characters so good, I often times wish to know more about them or have them come back. I meant to mention this in the last book review I did. Wishing Pepper the best, Allie did her a solid

Also, Victoria was a relief, lowkey thought they were going to say she was pregnant at the end there lol 

And that twist at the end...well well, the plot thickens.

It keeps getting brought up, I have a feeling one of these books Allie is going to meet with her Father, I'm honestly really excited for it.

Onto the next one!
148 reviews7 followers
June 20, 2025
Love this series. I have read the last few books in quick succession. This one surprised me in how it was so contained as a story with just a slight touch on the the over arching story of her moms disappearance. The story was good and I did not see the twist of one of the "bad" guys not being bad towards the end. I did see the big reveal of one of her trusted confident being the bad guy and that there is a whole story or two there for us to hear about. I was screaming in my head at Allie to not be so trusting when she gives something from her mom away. I have enjoyed the character development of Allie from being really young and second guessing herself to coming into her own and having a more assured outlook. I did think a couple of places were surprises with her character when she pushes back or even at one point kind of throws a tantrum but I like it. It's adding to the story to not have her be perfect, boring and an old soul. I was very surprised at where she really blurs the lines of right and wrong maybe doing a wrong thing for the right reasons. I wished I had some friends to talk to about that turn of events. I am interested to see if that plays into her further character development or just is left there as a nice way to tie up loose ends.
Profile Image for Angela.
8,256 reviews121 followers
December 17, 2025
4 Stars

The Warden's Wife is the fourth book in the Allie Bishop FBI Mystery Thrillers by Eva Sparks - and again, with this series I was plunged into a gripping blend of psychological suspense, high-stakes investigation, and emotional undercurrents.
Across the series, we follow Allie Bishop, a sharp, determined FBI agent whose intelligence is matched only by her resilience. Each book delivers a self-contained mystery whilst weaving in an overarching storyline that deepens Allie’s personal journey.
Ms. Sparks excels at layering clues, along with a few red herrings, ensuring that the final reveals are both surprising and satisfying.
The cases are dark and often chilling, but the human connections - between Allie and her colleagues, her adversaries, and even herself - gives the stories heart. The writing is vivid, making it easy to visualize the action, yet still intimate enough to pull you into Allie’s inner world.
This is perfect for fans of fast-paced thrillers who also appreciate character-driven storytelling.
Happy Reading…
Profile Image for Michelle.
1,593 reviews2 followers
August 2, 2025
At the beginning of this book it felt like I was just dropped into the middle of a story. Occasionally while reading I would come across parts that didn't seem to fit or flow properly with the story. Other times it seemed like there was stuff missing or left unexplained. Also I'm becoming disappointed in the fact that they're only seems to be, for the last 3 books now, that we're only getting 2-3 chapters on her mother's murder case, I was hoping for more on that in this book. I also think there was too much inner dialogue and not enough alternative POVs in this book. I'll keep reading the series because I like the characters and more or less like the authors stories. It would be nice if the author would address Ally's mom's murder investigation sooner rather than later and end it. Another thing the twist about the old family friend, IMO, was an absolutely no brainer and easy to see for a while away.
Profile Image for Beth.
189 reviews6 followers
August 15, 2025
Unforgivable

Minus stars! It's hard to review this book without using a spoiler. This being fiction and a thriller I'm willing to forgive an FBI agent breaking the law. And all the rest of a character behaving in a way no intelligent agent would. What is unforgivable is the author not explaining a huge hole in the plot. It appears as if the author couldn't figure out how to get from point A to point B, so she just skipped from A to Z and hopes the reader doesn't notice. I noticed.
Profile Image for Jocylena Beck.
65 reviews3 followers
August 29, 2025
The Warden’s Wife is an intense and emotional read that hooked me from the very beginning. Eva Sparks has a gift for creating tension and atmosphere, making you feel like you’re right inside the walls of the prison alongside the characters. The story is layered with drama, secrets, and unexpected twists that kept me turning pages.

I really enjoyed the complex relationships and the moral dilemmas woven throughout the plot. The main character’s struggles felt real and compelling, and the suspense was steady all the way through. The pacing was strong, and there were definitely moments that had me holding my breath.

The reason I didn’t give it five stars is that there were a couple of spots where I wished for a bit more character development and deeper exploration of certain side characters. A few twists also felt a little rushed.

Overall, it’s a gripping, well-written story that fans of dark drama and psychological tension will enjoy. Definitely worth reading if you like books that keep you questioning motives until the very end
236 reviews2 followers
December 11, 2024
Eva does it again

I just started reading the books by Eva Sparks in the last couple months. I find them very entertaining having twisted scenarios that I never saw coming. But each books story flows into the next in the series, each one of them good. Its so great to find an author that you know is going to put out a great story. This is it.
302 reviews
December 16, 2024
EVA SPARKS IS A GREAT STORYTELLER!

I love all her FBI series. I believe everyone should treat themselves to any or all of her books.

I could write far more about this book, but my iPad is acting up in the BEFORE YOU GO…it keeps going back and will not allow me to finish…I promise, you will love it.
678 reviews3 followers
January 26, 2025
Hidden Lies

The FBI was trying to track down a "cult" leader who had begun to kill some of his followers. Allie decided go go undercover ax a prison inmate to help one of his former followers to give up some information. Hold onto your hats as Allie is beaten by another inmate and even worse.
227 reviews
February 24, 2025
Good reading

Story goes fast. Not sure I like the fast pace, where you just start getting to the story, than jumps to the conclusion so fast.
Like where Allie is talking to stone around campground fire place and FBI starts raiding. how did the FBI figure out where the camp was so fast is beyond me. than goes to conclusion. But really isn't bad story.
Profile Image for Shonna BE.
210 reviews
May 8, 2025
4.5
I am so glad I didn’t quit with book three! This leg of Allie’s story is sweet, terrifying, winding, and insightful. The adventure feels new and not overdone, and the plot for the backstory that’s playing out through all the books is developing well. Excited to see where we go next and I hope Pepper is there too!
Profile Image for Sharon Bell tabbert.
560 reviews6 followers
December 3, 2024
I love the Allie Bishop series. The only problem is I read them when they come out & there done in like two days. Problem? I have to wait till end of January to read the next one. Eva Sparks is great at telling a story. You just can't put the book down.
416 reviews4 followers
December 24, 2024
The Warden's Wife (Allie Bishop FBI Mystery Thriller Book 4)

OMG!!!!!!! The rookie FBI agent Allie Bishop sure can get herself into quite a mess. She started out undercover and still managed to take down a lot of bad people. I can't wait to read the next book.
28 reviews
January 2, 2025
Hooked on this series!

Wow what a wonderful way to hook me into reading the next novel in the series!!
I cannot wait to see if she gets her mother's journal back safely and I cannot wait to hear about how her mother disappeared and what she was trying to look onto at that time.
Profile Image for Susan Clair Holt.
1,361 reviews1 follower
February 5, 2025
The Wardens Wife

Allie goes inside a prison undercover to get information on Wallace Stone which leads to multiple acts of illegal findings. They get their man but at a cost. Allie finally meets with Ethan to find out Sadie is corrupt. Great series.
276 reviews2 followers
March 30, 2025
A stint in prison

This story was unexpected and interesting. Never expected Allie to go to prison and her time there gets dangerous in several ways. The story had several twists and turns which creates danger to Allie. Ready for the next book!
82 reviews
April 14, 2025
Action! Agent Allie Bishop hits it hard!

Enjoyed this book. It did have a slow start but it picked up in the middle and ended with a bang. Can't wait to read the next Agent Bishop book!
56 reviews1 follower
August 13, 2025
Mystery Thrillers

I found Eva Sparks' books by accident and I am so thrilled that I did. I am now hooked. I love her characters, the plots and the intriguing twists and turns. I wold highly recommend her and her books to all who enjoy these types of puzzles!
47 reviews
September 17, 2025
an urge for more

Happy and sad that go well together. At times, tears around the corner of my eyes seem to be there for a good reason. That’s because the writing helps me with those reasons. Thank you.
91 reviews
November 20, 2025
Whoa what a ride

Allie Bishop is super rookie! I know this is not reality but boy does this woman rock! Thank you for not rushing the development of Allies journey into too few books....
161 reviews
December 2, 2024
So good!!!

I love reading the Allie Bishop series. They're all excellent reads that keep you engaged and on the edge of your seat!! Can't wait for Book 5!
139 reviews
December 16, 2024
Allie is growing as an agent!

I enjoy reading about Allie and her adventures as an FBI agent. She’s a force to be reckoned with even as a relatively new agent.
247 reviews1 follower
December 18, 2024
The Wardens Wife

I enjoyed this book a lot. It left me excited about reading the next book in the series. The plot was gripping, the characters ver real to life.
Profile Image for Sara Colby.
21 reviews1 follower
January 6, 2025
Live Allie

Still loving this series! Twists and turns keep me reading! The characters are great, interesting story development... Can't wait to start the next
184 reviews
February 3, 2025
Excellent read

This book keeps you on your toes. Characters and storylines are on the spot. Unless you have read the other 3 books before this one, you will not see what's coming.
13 reviews1 follower
May 27, 2025
This is my favorite Allie Bishop book so far. Lots of twists and turns.
Profile Image for Nici.
88 reviews
July 9, 2025
Not for me

I didn't enjoy the prison angle so skimmed past the last half of this book, sadly.
It just didn't resonate.
16 reviews3 followers
November 23, 2025
great book

What I love about Eva is she doesn’t always give the glowing beautiful happy endings. She is realistic that nothing is as it seems and not everyone is saved
Displaying 1 - 30 of 31 reviews

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