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  • Niki Unleashed: A Covert Agent Suspense Thriller (Niki Undercover Thriller Book 2)

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James M. Jackson
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Niki Unleashed: A Covert Agent Suspense Thriller (Niki Undercover Thriller Book 2) Kindle Edition

by James M. Jackson (Author) Format: Kindle Edition
4.8 out of 5 stars (21)
When your name is a lie, every truth can kill.

Three months after cutting a secret deal with the FBI's Deputy Director, ex-Special Agent Ashley Prescott gets her first off-the-books assignment: go back undercover as Niki and infiltrate Greenwar, a radical eco-cell executing executives of America's biggest polluters. Her way in? A dangerous cover as special assistant to the head of a powerhouse D.C. energy lobby. Access that could expose buried studies and dirty money—and paint a target on her back.

The assignment is already a death trap. But her real nightmare? The FBI surveillance team tracking her every move. Her former boss wants her silenced, buried, gone—and he's sent agents to make it happen. Now Niki is racing against two countdowns: Greenwar's next kill and the federal raid that will blow her cover wide open. One mistake, one moment of exposure, and she loses everything—her freedom, her mission, and the only life she wants.

The terrorists want justice. The agents who destroyed her career want her gone for good. And Niki? She just wants to survive long enough to take them all down.

Book 2 in the Niki Undercover Series New readers can start here

You'll love this if you want: • Undercover ops with no safety net • Heroines who make you question right and wrong • Intelligence agencies as dangerous as the criminals • Characters who weaponize everything—including themselves.
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  1. Book 2 of 3
    Niki Undercover Thriller
  2. Print length
    286 pages
  3. Language
    English
  4. Accessibility
    Learn more
  5. Publication date
    November 11, 2025
  6. File size
    1.8 MB
  7. Page Flip
    Enabled
  8. Word Wise
    Enabled
  9. Enhanced typesetting
    Enabled
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There are 3 books in this series.
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Product details

  • ASIN ‏ : ‎ B0FK1KFYP7
  • Publisher ‏ : ‎ Wolf's Echo Press
  • Accessibility ‏ : ‎ Learn more
  • Publication date ‏ : ‎ November 11, 2025
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 1.8 MB
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Not Enabled
  • Word Wise ‏ : ‎ Enabled
  • Print length ‏ : ‎ 286 pages
  • ISBN-13 ‏ : ‎ 978-1943166510
  • Page Flip ‏ : ‎ Enabled
  • Book 2 of 3 ‏ : ‎ Niki Undercover Thriller
  • Best Sellers Rank: #1,055,089 in Kindle Store (See Top 100 in Kindle Store)
  • Customer Reviews:
    4.8 out of 5 stars (21)

About the author

Follow authors to get new release updates, plus improved recommendations.
James M. Jackson

James M. Jackson

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James M. Jackson writes justice-driven thrillers with “brains and bite,” including the award-winning Seamus McCree series. That series explores financial crimes, family relationships, and their deadly intersection across eight novels, two novellas, and several short stories. His Niki Undercover Thriller series, currently with two novels and one in process, stars Ashley Prescott, an undercover federal agent fighting domestic terrorism of all kinds.

A life member of Sisters in Crime and past president of its Guppy Chapter, Jackson calls home the deep woods of Michigan's Upper Peninsula. These days he is a snowbird with clipped wings, retreating only to Madison, Wisconsin when weather and road conditions make access to his U.P. home problematic.

When he’s not tormenting his characters, he’s likely birdwatching, hunting for moose sheds, or tracking wolves. Find news, extras, and upcoming events at his website.

Customer reviews

4.8 out of 5 stars
21 global ratings

Top reviews from the United States

  • Candace PS
    5 out of 5 stars
    Watch Niki become undercoverd!
    Reviewed in the United States on January 14, 2026
    Format: Kindle
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    I have read both books and am looking forward to any more that might be forthcoming. I really enjoyed NIKI and the way she was able to shift personalities. Something I truly wish I was able to do. i also feel her friends and guardians are out of this world.

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  • James E Wilson
    5 out of 5 stars
    Great story
    Reviewed in the United States on January 29, 2026
    Format: Paperback
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    Another fine example of James Jackson’s series of top flight mysteries. The plots keep your interest until the end.

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  • Kandy
    5 out of 5 stars
    A very suspenseful page turner.
    Reviewed in the United States on November 17, 2025
    Format: Kindle
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    Another exciting and suspenseful book in this series. A real page turner. I loved it.

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  • Peggy
    5 out of 5 stars
    Great second act
    Reviewed in the United States on January 14, 2026
    Format: Kindle
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    Received this Advanced Readers Copy of Niki's second adventure. I admit she's beginning to grow on me. In this second installment of the Niki Trilogy she has a new assignment to infiltrate a group called GreenWars who we think may be doing more than investigating environmental abuses, like maybe killing people? Of course, she has to balance this with her dealings with her family business in Minneapolis and the backlash from her embarrassing her FBI boss in the first book. We do see a softer side to her as she interacts with her 13-year-old nephew and his mother, so that was nice. But she gets to work more on her own terms in this story. That's not to say she doesn't get into plenty of trouble. All this means more non-stop action and plenty of close calls for Niki.

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  • DM
    5 out of 5 stars
    Hard to put down!
    Reviewed in the United States on January 14, 2026
    Format: Kindle
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    Loved the Book - action, mystery, very interesting characters. I like my main character to be smart and savvy. and nice to have this in a female lead. Hard to put the book down once I started! Love this author and all the books I've read of his so far have been this intense and good. Definitely recommend this book!

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  • Lori J
    5 out of 5 stars
    Don’t miss this book
    Reviewed in the United States on January 15, 2026
    Format: Kindle
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    Action packed book with in-depth characters and humor mixed in to create a great story that builds and builds in this terrific series.

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  • Chlobert
    5 out of 5 stars
    LOVE THIS SECOND BOOK IN THE NIKI SERIES!!
    Reviewed in the United States on November 25, 2025
    Format: Kindle
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    This book was every bit as great as Niki Undercover was! I really love all the twists and turns, going from character to character, and it keeps me wanting to turn the pages for more! As usual, with a great book, I never want to see it end, so I'm thrilled that there will be another book in the Niki series, according to what I've seen!! This is one of my now favorite authors, and I am hoping the series can continue beyond the third book planned for 2026!

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  • kepnerkl
    5 out of 5 stars
    Fast paced
    Reviewed in the United States on November 11, 2025
    Format: Paperback
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    I'm loving this series. Niki is still feeling the stress of exposing her former boss as the dirty cop he is. Now under the orders of the US Marshals, she is sent to infiltrate another group that may be murdering executives. She's not sure who she can trust. She's also still dealing with the family business that she really doesn't want to be involved with. This book is full of action, twists, and turns that kept me reading. You won't be disappointed.

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