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Rollback
The Mirage
Mike Mansfield and his invisibles are back, trying to help a grieving family make sense of a terrible tragedy. But to their surprise, nothing about the event seems to make any sense, except that someone is trying to stop them at all costs, beginning with Mansfield.
As they gradually begin piecing the puzzle together, Mansfield and his team realize the original explanation of what took place is nothing of the sort. That the explanation was never meant to be anything but a mirage, and that Mike Mansfield is the last person they want involved, because people don't know what Mansfield is capable of... until it's too late.
As they gradually begin piecing the puzzle together, Mansfield and his team realize the original explanation of what took place is nothing of the sort. That the explanation was never meant to be anything but a mirage, and that Mike Mansfield is the last person they want involved, because people don't know what Mansfield is capable of... until it's too late.
302 pages, Kindle Edition
Published November 25, 2025
555 people are currently reading
59 people want to read
About the author
Michael C. Grumley
18 books1,316 followersMichael C. Grumley is the author of the best-selling BREAKTHROUGH series with over two million books sold. He lives in Northern California with his two young daughters. He’s an avid reader, runner and most of all father, and dotes on his girls every chance he gets. He loves hearing from readers while he works on the next ROLLBACK book.
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Displaying 1 - 18 of 18 reviews
January 1, 2026
Only one regret….
This series is fantastic. My only regret with this series is that the author can’t write fast enough to keep up with my reading speed. I work full time and have a family to take care of so it did take me two weeks to get through the first two books of the series. For the author to beat my speed he would have to be using AI, so I will happily wait until May for book three to be actually created by him. Great concepts and great characters. I highly recommend this series!
This series is fantastic. My only regret with this series is that the author can’t write fast enough to keep up with my reading speed. I work full time and have a family to take care of so it did take me two weeks to get through the first two books of the series. For the author to beat my speed he would have to be using AI, so I will happily wait until May for book three to be actually created by him. Great concepts and great characters. I highly recommend this series!
January 7, 2026
Life is to be lived and learned from
Time is a precious and ever-changing resource that continues to move forward, often without our conscious awareness. In the midst of our busy lives, it is crucial to pause and cherish the moments we have with our loved ones. Family represents a fundamental source of support, joy, and connection that can provide comfort and meaning to our existence. As life's unpredictable nature unfolds, we are reminded that opportunities to create lasting memories and strengthen relationships may not always be available. Therefore, it is essential to prioritize quality time with family, expressing love, sharing experiences, and building meaningful connections before circumstances potentially prevent us from doing so. The fleeting nature of time serves as a poignant reminder to appreciate and nurture our relationships, understanding that each moment spent together is a valuable and irreplaceable gift.
Time is a precious and ever-changing resource that continues to move forward, often without our conscious awareness. In the midst of our busy lives, it is crucial to pause and cherish the moments we have with our loved ones. Family represents a fundamental source of support, joy, and connection that can provide comfort and meaning to our existence. As life's unpredictable nature unfolds, we are reminded that opportunities to create lasting memories and strengthen relationships may not always be available. Therefore, it is essential to prioritize quality time with family, expressing love, sharing experiences, and building meaningful connections before circumstances potentially prevent us from doing so. The fleeting nature of time serves as a poignant reminder to appreciate and nurture our relationships, understanding that each moment spent together is a valuable and irreplaceable gift.
January 10, 2026
In this book, a rich billionaire has invented a computer program that captures all of the digital pictures from cell phones, traffic cameras, doorbell cameras, etc. and uses them to track crimes (usually involving human trafficking) by sequencing their past data. Then a team of retirees tracks down the bad guys, makes sure they get what is coming to them while recovering the people that had been taken. The characters aren't terribly deep but the story is engaging and much of the technology doesn't seem all that far-fetched.
I liked the book, as I did the previous book in this series, and look forward to next one.
I liked the book, as I did the previous book in this series, and look forward to next one.
November 30, 2025
Maybe
Michael C. Grumley has an obvious hope for the use of technology to benefit mankind. I also hope somewhere, someone(s) are using AI to find those involved in human trafficking and ending the terror of those that traffic children. "The Mirage" kept my interest. Fast paced. Those characters who are amongst the "Invisibles" are characters to emphasize with, especially Mike Mansfield. I really like this new series from MCG. I am devour "The Circle" when it downloads to the Kndle app. Thanks, Michael for the new series. NEXT!!!
Michael C. Grumley has an obvious hope for the use of technology to benefit mankind. I also hope somewhere, someone(s) are using AI to find those involved in human trafficking and ending the terror of those that traffic children. "The Mirage" kept my interest. Fast paced. Those characters who are amongst the "Invisibles" are characters to emphasize with, especially Mike Mansfield. I really like this new series from MCG. I am devour "The Circle" when it downloads to the Kndle app. Thanks, Michael for the new series. NEXT!!!
November 29, 2025
Gripping page turner.
Couldn't put it down.
The characters are fully fleshed, interesting and believable
The sci-fi concept is scary, as it is so close to possibility.
The foreign conspiracy is in fact a reality.
I have read all his books and would recommend this series.
Can't wait for book three.
Couldn't put it down.
The characters are fully fleshed, interesting and believable
The sci-fi concept is scary, as it is so close to possibility.
The foreign conspiracy is in fact a reality.
I have read all his books and would recommend this series.
Can't wait for book three.
December 1, 2025
A great series
Another great series from Mr. Grumley. His characters are amazing. His storyline always interesting and there's always an amazing piece of Technology to tickle your sci-fi funny bone. As I've said before, my only complaint is that the books have endings. Id prefer to just keep reading.
Another great series from Mr. Grumley. His characters are amazing. His storyline always interesting and there's always an amazing piece of Technology to tickle your sci-fi funny bone. As I've said before, my only complaint is that the books have endings. Id prefer to just keep reading.
December 12, 2025
A GREAT SERIES
The Breakthrough Series was great and I've just finished book 2 of the Rollback Series. Books one and 2 were great. The characters were interesting and the plot tight, filled with suspense and like the other books by this author, a does of technology. I got book 2 of this series on the day it was released and now I'll wait for book 3.
The Breakthrough Series was great and I've just finished book 2 of the Rollback Series. Books one and 2 were great. The characters were interesting and the plot tight, filled with suspense and like the other books by this author, a does of technology. I got book 2 of this series on the day it was released and now I'll wait for book 3.
January 21, 2026
I’m an invisible
It was so great to read a story that included my age group and told the world that aging doesn’t mean you’re ready to be put out to pasture. The characters were whip smart and had a while ahead of them before they needed to sit on the porch. Can’t wait for the new one. Please continue with the series. There’s a need for this area.
It was so great to read a story that included my age group and told the world that aging doesn’t mean you’re ready to be put out to pasture. The characters were whip smart and had a while ahead of them before they needed to sit on the porch. Can’t wait for the new one. Please continue with the series. There’s a need for this area.
November 26, 2025
Great series!
Can’t wait for book 3 - some of these are hard to read just due to the subject, but the justice is gratifying! Definitely recommend this series and all of Grumley’s books actually!
Can’t wait for book 3 - some of these are hard to read just due to the subject, but the justice is gratifying! Definitely recommend this series and all of Grumley’s books actually!
December 2, 2025
Brimley writes compelling stories
I'm new to reading grumleys books but keep Coming back for more because His stories Are compelling. If you give Sometime To reading Any of his stories I think you will find them entertaining and compelling As well.
I'm new to reading grumleys books but keep Coming back for more because His stories Are compelling. If you give Sometime To reading Any of his stories I think you will find them entertaining and compelling As well.
December 3, 2025
Rollback
First, thanks for letting people know that .most people 55 and up are NOT done yet,and are still MORE than useful to society.
The adventure has been great, and I'm looking forward to book three!
First, thanks for letting people know that .most people 55 and up are NOT done yet,and are still MORE than useful to society.
The adventure has been great, and I'm looking forward to book three!
December 5, 2025
Excellent series
Love anything this author writes. Very interesting and you can not guess what is coming next. Highly recommended reading. Can't wait until the next book comes out next year
Love anything this author writes. Very interesting and you can not guess what is coming next. Highly recommended reading. Can't wait until the next book comes out next year
December 8, 2025
Amazing plot line!
Mansfield is up against an unknown enemy. Always looking out for the under dog, he cleans up a few messes along the way.
As the puzzle pieces begin to come together, a vast criminal network is exposed.
This was hard to put down!
Mansfield is up against an unknown enemy. Always looking out for the under dog, he cleans up a few messes along the way.
As the puzzle pieces begin to come together, a vast criminal network is exposed.
This was hard to put down!
December 9, 2025
The Mirage
Not my usual genre, but I am always entertained by Mans field's dedication to his calling. Unfortunately, I now have to wait until next March to finish the series, which is the reason for one less star than it deserves. Keep 'em coming, Mr. Grumley!
Not my usual genre, but I am always entertained by Mans field's dedication to his calling. Unfortunately, I now have to wait until next March to finish the series, which is the reason for one less star than it deserves. Keep 'em coming, Mr. Grumley!
December 13, 2025
Our 'heroes' are monsters. They do not grow in their inner lives throughout. "The justice system is broken" means " We are judge jury and executioners". Vengeance replaces justice. Plus, AI being used to monitor everyone at will is praised? No.
December 4, 2025
Enjoyable
December 11, 2025
Great read. Great series. Can't wait for the third installment, The Circle.
December 28, 2025
Good, but not as enjoyable as the previous series. I rate it 4.5 stars.
Displaying 1 - 18 of 18 reviews