Jump to ratings and reviews
Rate this book
Rate this book
As the global war on terrorism rages on, the elite government agents of Shadow Cell hope they see an eventual break in the battle.
Agent Adriana Villa and her boss, June Holiday, have lured in a mysterious defector who supplies them with the secret locations of a network of widely scattered hideouts and weapons caches of the deadly Red Ring, the most barbaric, most ruthless terrorist network in history.
This highly classified information, however, quickly turns out to be just another ruse in the terrorists’ elaborate and deadly scheme to eliminate Shadow Cell and inflict mass casualties upon innocent civilian populations worldwide.
As the two remaining Shadow Cell agents, Adriana and June are forced to turn to Interpol and other international law enforcement agencies for help as the clock ticks down on what they believe to be the Red Ring’s grand and savage scheme—mass murder and invasion on a near-biblical scale.
USA Today best-selling author Ernest Dempsey once again keeps his foot on the proverbial gas as Shadow Cell races readers across a world in turmoil. A world quivering from a series of Red Ring attacks. A world teetering in the balance. A world that will never be safe if the terrorists eliminate Shadow Cell completely.

223 pages, Kindle Edition

Published September 28, 2018

103 people are currently reading
47 people want to read

About the author

Ernest Dempsey

71 books478 followers
Ernest Dempsey is a huge fan of action/adventure thrillers and science fiction.

He has been creating stories since he was in high school but never published a book until 2010, long after the days of high school were gone.

His action & adventure books come from a lineage similar to Clive Cussler, Dan Brown, Steve Berry, and James Rollins. While his science fiction novels are full of influence from Suzanne Collins' The Hunger Games, The Matrix movie, and Gladiator directed by Ridley Scott.

He is quickly becoming one of the hottest fiction authors in the book world.

Ratings & Reviews

What do you think?
Rate this book

Friends & Following

Create a free account to discover what your friends think of this book!

Community Reviews

5 stars
211 (63%)
4 stars
95 (28%)
3 stars
16 (4%)
2 stars
8 (2%)
1 star
2 (<1%)
Displaying 1 - 30 of 30 reviews
Profile Image for HornFan2 .
769 reviews47 followers
October 5, 2018
I received a free advance ARC copy from the author for my honest review and I also purchased a copy from amazon.com. Something I like to do, to support the authors I read advances for and it makes easier to post reviews on amazon.com.

Another great read from Ernest Dempsey, like that it was another Adriana Vila story, really like this character a lot and also like that it was a shorter read, than his Sean Wyatt books. Be nice to see that series also have shorter novels.

You can't help, but like both Adriana and June, even if at times they seem to be, 10 feet tall and bullet proof, just seem to be invincible, deadly even, and unstoppable no matter what trouble they get into or find themselves in.

Just like James Patterson, Dempsey puts his lead characters into scenes were they should be killed, yet they survive or they miracously just have cuts, bruises, a broken elbow and a mild concussion.

It's the final countdown! The ultimate concluding battle between June & Adriana and Red Rising. No surprise that Dempsey takes over the top, you have a treacherous Teacher orchestrating a multi-layered attack on the infidels, he's desperate to eliminate Shadow Cell, and you need to read all three books too know who wins.

Profile Image for Pete.
895 reviews7 followers
September 30, 2018
The Shadow Cell series has been a great offshoot from the Sean Wyatt series, featuring Sean and Tommy's girlfriends in a top secret anti-terrorist unit. They both have unique skills and bucketloads of courage and determination, and their characters are developed far more than in the Sean Wyatt books, especially June's, but we even learn a lot more about Adriana than was in the original series dedicated to her.
The action is non-stop and very well written, nicely balancing a mixture of luck and skill. The girls manage to survive a lot of catastrophes caused by a terrorist leader known as 'The Teacher' and this culminates in an original and powerful climax. The future of Shadow Cell is rather left in the balance at the end, but I sincerely hope that there are more books in this series.
I received an advance copy of the book but have voluntarily reviewed it.
7,781 reviews50 followers
December 15, 2018
Once again we meet up with June who works for Shadow Cell. She answers to a select few people who trust her and her team,to get the job done.
Red Wing a terrorists organization , in which she brought in top guns to destroy their facilities. Adriana was in the car that was bombed heading to HQ she sees that building destroyed from another bomb. The old man who gave them the information on Red Wing, was too clean,the bombing was set to happen. June was away from HQ, others were in the building.The Teacher as he called, is celebrating thinking Shadow Cell was illuminated . June called in other agencies , and Interpol, they were determined to stop the terrorists. Good ending for the two women and whatever the next steps will be in their lives
Profile Image for David Taylor.
1,545 reviews25 followers
September 28, 2018
Can Shadow Cell school the Teacher?
Once again Mr. Dempsey has crafted a story based on two very strong, well developed female characters who are deeply involved in pursuing terrorists and The Teacher in particular. Shadow Hour is filled with action, intrigue, and double-cross, this book is very difficult to put down once you begin reading it. For fans of the Shadow Cell books, this is a must read. So as to not provide any spoilers, I’ll just say I was hooked from the opening action until the last page. I received an ARC and chose to provide this review.
Profile Image for Kip Gochenour.
101 reviews
September 29, 2018
Adriana Villa takes you on another wild ride chasing down terrorists and eliminating them without prejudice. We also see a softer side of her. Possibly hinting at a Sean Jr.? Ernest Dempsey never disappoints. Great characters and page turning excitement.
I received this book as an advanced copy in return for an honest review.
1 review
October 2, 2018
Most entertaining, hard to put down, easy read. Would recommend reading. Very much liked the female characters,rather than male characters always being the hero's.

Easy read, very entertaining,would recommend reading. I enjoyed it very much. Looking forward to reading more of Dempsey's books. Have read many in the past
Profile Image for Lcr.
909 reviews7 followers
October 25, 2018
Shadow Hour is a terrific, fast paced suspense thriller from a very talented author. The Shadow Cell are closing in on the terrorist group the Red Ring and June and Adriana need to act fast and smart. This is a non stop action book that you will not be able to put down, I cannot recommend it highly enough.
I received an advanced copy of this book and this is my honest and voluntary review.
12 reviews1 follower
January 30, 2019
Another awesome mystery full of twists and turns. Have read ALL of your books to date and cannot wait for the next one! Thank you for all the wonderful hours of reading enjoyment!

If you do not read these books you are really missing out! You will never regret it. Worth every hour.
Profile Image for Herman  Morgan III.
146 reviews3 followers
April 12, 2020
I really enjoyed this Trilogy

Both Adriana and June have been some of my favorite characters in the IAA adventures of Sean and Tommy, so it was nice to spend some thrilling time with them. Now I'm going to read some more of Mr Dempsey's fine work, while I wait for the next Sean and Tommy episode.
243 reviews3 followers
August 19, 2020
Redeemed yourself youngster!

I was disappointed with book 2 of this series; thinking you were down on America... you have redeemed yourself with this book. No terrorist should go unpunished: especially radical extremest - they hurt good Muslim folks too! Cannot wait to see what you write next, thank you for all the excitement and adventures!
745 reviews5 followers
September 2, 2021
Chalk up one evil

Adrianna and June make a very good team as they hunt down the teacher. London, Sweden, Uzbekistan, Samarkand, just a little globe trotting to find the teacher and prevent any more harm to innocents. Great job. Lots of fast moving exciting moments and surprises. Thank you from Villa Rica GA.
15 reviews
April 19, 2023
Adrian and June Rock

Loved how these two women team up to fight the bad guys and keep the world safe. They know no fear and meet danger head on.

Really enjoy Ernest Dempsey's style of writing. Keeps you hooked from page 1 to the very end. Keep writing Ernest - would love to read more Adriana and June adventure stories.
389 reviews2 followers
September 22, 2018
Great thriller, as usual for Dempsey!!! June and Adrienne are working together against the Shadow Cell! So many unexpected twists, but an all-together outstanding thriller! Enjoyed this book almost as much as the Sean Wyatt books!
777 reviews3 followers
October 4, 2018
Best of the Series

There was more tension and urgency in this book than the last book. This moved the story along at a perfect pace. The lead characters Adriana and June worked off each other without missing a beat.
290 reviews2 followers
July 19, 2019
Entertaining Reading

Excellent story. I really enjoyed all three of the Shadow Cell Thrillers. I especially like how well each episode of the story flowed from one book to the next. These were very entertaining.
29 reviews
October 27, 2019
Ernest Demsey you keep turning out excellent books

Shadow cell Thriller is another one of Ernest Dempsey books you can not put down it is full of non stop excitement. Keep the great work up.
Profile Image for Kenn Goslin.
821 reviews7 followers
February 24, 2020
June and Adrianna rock !!!

How do you survive a blown up, flipped on its top, covert vehicle? One has to ask Adriana! Then there's the explosion that levels headquarters and kills everyone inside!!! And that's not all.....!
3 reviews
September 1, 2020
Women Rule

I love Ernest Dempsey's Sean Wyatt so when this trilogy came out I just had to read it. Loved the action and drama, and the idea he made these two women the hero's was so exciting.
Profile Image for Kevin Doseck.
48 reviews1 follower
September 3, 2020
A top roaring read

The story is straight out of today's headlines. A virus of unknown origin, frightening in the speed of transmission. But hope arises in an ancient remedy. Look forward to the next book!
9 reviews
June 3, 2021
Good conclusion to the first (?) three

I have enjoyed these, which comes as a surprise because I didn't really like the War of Thieves. There was no carryover of characters from the Sean Wyatt books. At least June is a familiar character and they work well together.
Profile Image for Jennifer Cagle.
778 reviews1 follower
August 21, 2021
Good action novel

This was a very good action novel and mystery. I've enjoyed all of Ernest Dempsey's books. This completes all of them for me and I'm looking forward to him writing more!
53 reviews1 follower
September 28, 2018
I found this the best shadow cell story to date thoroughly enjoyed reading it, Adrianna and June are a great team and kick ass😁
517 reviews7 followers
October 5, 2018
Best book of this series

I really enjoyed this book. Easy to stick with and stay with the plot. Early surprise in book. Reading about two ladies like this is fun
Profile Image for Mindy.
298 reviews2 followers
January 3, 2019
Another great one from one of my favorite authors! So glad the girls have some R&R time ahead of them. Great ending!
8 reviews
June 1, 2019
Super good

As always no surprises but great story on these two! Enjoyed all his books waiting for more! Enjoyed his history and visiting new areas in the world I never knew about.
Profile Image for Michelle.
195 reviews
May 26, 2020
Great read

All of Ms. Villa’s adventures are great. Mr Dempsey has a way with adventure. From Sean Wyatt to Shadow Cell. Read them all.
406 reviews1 follower
January 8, 2021
I enjoyed this book and especially the woman or are so tuff .
152 reviews
September 7, 2023
great book

Ernest Dempsey writes a pretty great book. I enjoyed reading about the shadow cell. I will have to look into more books of his
358 reviews3 followers
October 9, 2018
Kind of a normal thriller. Really like the characters and a very good plot
636 reviews1 follower
April 27, 2019
Good read

I really like the character of Adriana. First meet her in a Sean Wyatt book, then in her own books. Always a good plot, good character development, and lots of action. Plus anyone who restores stolen art has to be a good person. Recommended.
Displaying 1 - 30 of 30 reviews

Can't find what you're looking for?

Get help and learn more about the design.