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Operation Kringle: A Holiday Time Travel Thriller

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A stranger from the snow.
A warning from the future.
A mother’s fight to rewrite it all.


For Kelly McCormick, trying to balance single motherhood and a never-ending to-do list, is a constant battle. Every time she seems to inch ahead, some new emergency jumps up to knock her back. But she’s making it work . . . most of the time.

Less than a week before Christmas, she’s setting out to pack up the cabin of her closest friend with her two teenage sons in tow. Although it’s not a vacation, Kelly is hoping that maybe they’ll have one more magical memory there before the cabin is sold.

But with one son making it clear he doesn’t want to be there and Kelly feeling guilty about all she can’t do for both of them, that’s looking increasingly unlikely.

And that was before they found the man unconscious in the snow.

Events shift from difficult to downright life threatening in short order. This strange man has a world of trouble on his heels, trouble that comes with gunfire.

A simple good deed has turned deadly. But soon Kelly realizes that there is so much more to this stranger’s story, hundreds of years more.

Kelly is not a superhero. She is not a spy. She’s just a normal mom caught up in something extraordinary.

Right now, though, she needs to be extraordinary too. Because if the future this man has laid out is accurate, it’s a complete nightmare.

408 pages, Kindle Edition

First published December 12, 2024

134 people are currently reading
32 people want to read

About the author

R.D. Brady

116 books337 followers
R.D. Brady is the bestselling author of over 60 science-based thrillers, cryptid adventure novels, and mythological conspiracy series that blend real-world science with nonstop action.

With a Ph.D. in Criminology and a professional background in counterterrorism and behavioral science, R.D. brings expert insight to her fast-paced fiction. Her stories are known for featuring fierce female leads, ancient secrets, and cutting-edge research that challenges what we think we know about science, history, and the unknown.

She is best known for the long-running Belial Series, a fan-favorite that explores archaeological mysteries and supernatural revelations—and continues with the high-stakes Belial Rebirth Arc.

R.D. is also the author of The Ancestral Code Series, starting with Hominid, a cryptid-meets-science thriller that reimagines the Bigfoot legend. Her other popular works include the A.L.I.V.E. Series, The Unwelcome Trilogy, and the latest addition, the Shadow Directive series, including Predator Dominion.

Whether it's a global genetic conspiracy, an ancient civilization buried beneath modern myths, or a killer storm trapping a wrongly accused man, R.D.'s books deliver the adrenaline, mystery, and emotional depth that fans of Michael Crichton, Douglas Preston & Lincoln Child, and James Rollins crave.

When not writing, R.D. teaches martial arts, runs with her dogs, and tends to her garden. Under the pen name Sadie Hobbes, she also writes sharp, fast-paced urban fantasy thrillers.

📬 Subscribe at rdbradybooks.com to get exclusive extras, free novellas, and first looks at upcoming books.

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5 stars
86 (67%)
4 stars
25 (19%)
3 stars
13 (10%)
2 stars
2 (1%)
1 star
2 (1%)
Displaying 1 - 16 of 16 reviews
688 reviews5 followers
December 13, 2025
To be or not to be. That is a phrase in Hamlet by William Shakespeare that came up in my mind when reading Operation Kringle by RD Brady. Hamlet might have puzzled on the nature of life but when the world proved to be in dire straights 200 years hence when a time traveler's road crossed that of Kylide McCormack and her two sons, I certainly involuntarily started puzzling the aptness of this phrase too.
The future, though advanced, also in dire straights? Really?
Operation Kringle is a rather suspenseful thriller that kicks off when Kylie discovers an attractive but unconscious male in a snow patch and tried to save his life.
That action had severe results when thugs subsequently indiscriminately fired on the hut they stayed in intending Nick's prompt demise.
They narrowly escaped.
And life became volatile for her, the kids and Nick.
Operation Kringle is quite a tome consisting over a hundred chapters with lots of action and suspense and surprises. And sooo immersive!
Even when idly wondering about applying the phrase "to be or not to be"
Enjoy!
Profile Image for Deborah Paugh.
2 reviews1 follower
January 7, 2026
Love reading this!

I normally read romance novels but after reading the description of OPERATION KRINGLE I was intrigued. I do enjoy an occasional time travel novel and I was looking for Christmas based stories so I found this book too interesting to pass up. I loved every minute of reading this book because it had everything but romance! We have a single mom raising her twin boys, a mysterious man in need of help, an adorable smart dog, and a mystery to be solved to save the future. I know that I’ll be reading this book again in the future and I also need to check out other novels by R.D. Brady!
26 reviews1 follower
January 8, 2026
She did it again.

I just finished Reading Operation Kringle, for the second time. I first read it shortly after publishing. I don't know where RD Brady gets the inspirations g for her books, but I hope she continues to get them. Her ability to braid facts and history into a cohesive story totally grab my attention every time. To enjoy a good read and well developed characters, I highly recommend this book.
22 reviews1 follower
December 8, 2024
Best Author Ever !

No matter what I'm currently reading, if an RD Brady novel comes out I will stop what I'm reading and read her newest book first.
I have, to date, read ALL of her novels and never been disappointed.
Operation Kringle is an amazing example of her unique creativity and intrigue .
Thank you so much for again sharing your excellent talent !
Profile Image for Jessica Willoughby.
1,584 reviews12 followers
December 8, 2024
Absolute Perfection

Reading the description for this book I was intrigued and skeptical but it all came together so well. The main character is perfect and the adventure along the way with the theories and facts (along with the Christmas element) was the perfect didn’t know I needed. Love and highly recommend
21 reviews
May 13, 2025
Overall I enjoyed the idea behind the story. But I felt some of the portions of the story were rushed. For example when Nick just blurted out he was a time travler. Or when Charlie first met Kelly, he seemed less interested about the shooting at the cabin then talking about his time travling theory.
This entire review has been hidden because of spoilers.
12 reviews
December 20, 2025
Restore your faith in humanity

An action packed thriller that does not disappoint. The lists are real. Santa has done all he could. We just need to remember that how and faith in each other is small gesture that can make ripples thru the lives of others. Need an exciting Christmas thriller, you got it right here.
Profile Image for Melissa.
846 reviews17 followers
December 18, 2024
Fiction / Christmas / SYFY / Thriller
⭐⭐⭐ /5
That was CRAZY!!! That is all I have to explain what I just read. I hated the FMC!! She got on every single one of my nerves. Making the rest fell short for me. That ending?! What? No.
28 reviews
December 30, 2024
Santa with a twist!

A nice twist on Santa Claus! Very well written and nicely paced as always. The characters are well developed. Nice story, Thank you for a Christmas story as only RD Brady could deliver.
437 reviews3 followers
June 23, 2025
Not just for Christmas

Although the action takes place at and around Christmas, the novel is completed and detailed enough to stand well at any time of the year. I read it in June and lost nothing because of the time of year I read it. A good read at any time.
Profile Image for Sam.
2,594 reviews44 followers
November 26, 2025
I did really enjoy this time travel thriller! It is always a pleasure to read this writers work. A well thought out plot, interesting ideas, very well written, a real adventure to disappear into! I do recommend!
32 reviews
December 18, 2024
Christmas and time travel

A great read, mystery, sci-fi elements and a great storyline to remind the reader of the importance of helping others and a Christmas surprise.
Janet
1 review
December 26, 2024
time travel, greed, and the power of Santa

A good tale, a fun romp and a different view of Santa. Kept my attention to the very end. A very much recommend it!
47 reviews
June 30, 2025
Great read start to finish. Characters, plot, human interest and emotions. Loved it all way to end which was great!
7 reviews
January 11, 2026
SHE’S DONE IT AGAIN!

The stories that come from this author are truly amazing. I look forward to more outstanding prose in 2026. Thank you.
145 reviews1 follower
December 15, 2024
R D Brady delivers again. This was a great plot with good character development and all those little bits of history that Brady keeps giving us. Well worth the read.
Displaying 1 - 16 of 16 reviews

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