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Zero Tolerance (The First Blood Series Book 4) Kindle Edition

4.8 out of 5 stars 38 ratings

Who wouldn’t fear a blood drinker?

Raven Cartana’s future is up in the air, and it all hangs on if he can pass the Elite Interview and join the newest military branch containing mostly supernaturals. At sixteen, and a blood drinker, his chances are minimal at best. At worst, he’ll be killed on sight once his heritage is revealed.

Passing the Interview and becoming an Elite soon proves to be the easy part as unusual Threat attacks rise, and Raven must find himself a steady blood source. It’s up to Raven and his team to locate and stop the mastermind behind the attacks before disaster befalls them and more lives are lost.

Can a teenage Elite Captain succeed at a job that even the seasoned soldiers are struggling to understand?

Join Raven Cartana and other beloved characters in this enthralling prequel to the First Blood Trilogy. This book is set ten years before the start of First Blood. There are no spoilers for the series. It can be read as part of the series or as a standalone novel.

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There are 7 books in this series.

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Product details

  • ASIN ‏ : ‎ B07TSV2MZM
  • Publisher ‏ : ‎ Scribbling Pen Publishing
  • Accessibility ‏ : ‎ Learn more
  • Publication date ‏ : ‎ August 10, 2019
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 3.8 MB
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Not Enabled
  • Word Wise ‏ : ‎ Enabled
  • Print length ‏ : ‎ 257 pages
  • Page Flip ‏ : ‎ Enabled
  • Book 4 of 7 ‏ : ‎ The First Blood Series
  • Customer Reviews:
    4.8 out of 5 stars 38 ratings

About the author

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Heather Karn
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Heather is a lover of all books YA Paranormal Romance and Urban Fantasy, but it wasn’t until she was in college that she realized this. It’s likely why the book she wrote in 8th grade was rewritten several times and then set aside to sit on her bookshelf to never see the light of day. Once Heather found the genre that she enjoyed above all others, she dove back into reading, and with it, writing. That’s why even her Christmas books are filled with dragons and shifters.

Currently, Heather and her writing companion, Gunney, live in Wisconsin. He’s her Pomeranian that loves to keep her company while she writes and edits. He also keeps her on her toes. They can often be found wandering the local cemetery to escape the apartment, sitting out on the back deck, or snuggling on the couch writing. If Heather isn’t writing, she’s listening to music while crocheting, making Christmas ornaments, or reading. Some form of music is always playing, and each book has its own theme song or album.

Customer reviews

4.8 out of 5 stars
38 global ratings

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Top reviews from the United States

  • Reviewed in the United States on January 20, 2024
    Format: KindleVerified Purchase
    Another fantastic read.

    The characters were all amazing and I enjoyed reading and getting to know each character better.

    The storyline was incredible. It was very well written and kept me turning the pages just to see what would happen next. I loved the action and edge of your seat suspense and I highly recommend this read.
  • Reviewed in the United States on August 10, 2019
    Format: KindleVerified Purchase
    Love this book, now I LOVE Raven more than before 😍... he overcame so many obstacles, including his family disowning and his first love rejection 😢... but his broken heart didn't stop him from fulfilling his goal, of becoming an Elite and help save lifes 💪... soon enough, he proved his worth and earned the Generals and everybody else's trust, forming his first team and getting a big promotion in record time 🏆... Now, I understand better his attitude, he lost to much, he suffered so much!!! 😭... Love, love, love Raven... Can't wait to read how his relationship with Koda will develop, love this couple!!! 💖 😍
  • Reviewed in the United States on September 25, 2019
    Format: KindleVerified Purchase
    I loved this book! I usually don't enjoy prequals but I couldn't put it down!!! A must read for the first blood series
  • Reviewed in the United States on August 10, 2019
    Format: Kindle
    This book is about Raven and how he ended up joining the Elite team.
    You don't have to read the other two books first since there are no spoilers since this is about Raven before he meets Koda.
    I have to say that I did not have any expectation when I first started reading it. I also have to admit that I don't like prequals which this one is. However, I found that I loved it because we get a better understanding of Raven, why he acts the way he does with people he knows, in the first two books and others he doesn’t. I also felt that I had a better connection with him because of it.
    We meet a few of the secondary characters from First blood (book one) and Second Lineage (book two) which helps in understanding their relationship with Raven.
    It is fast paced with plenty of action and a little gore as well.
    There is no sexual content or profanity.
    I hope we get more of his pov in the fourth book or even his own pov for all three books! He is a character that I can't get out of my mind.
    would highly recommend this one and in my personal view I would recommend reading it first before the other two so you get a better picture of him since in the other books he keeps things to himself and seems mysterious. This gives you an insight of how his mind works.
  • Reviewed in the United States on February 20, 2023
    Format: Kindle
    It was nice to learn more about Raven. It's interesting to see how much he and Koda have in common and how his grumpy personality came about.
  • Reviewed in the United States on July 29, 2020
    Format: Kindle
    I was surprised that I was able to step away from the main series and devour this backstory book, but it is amazing. Raven is amazing. I'm glad to get to know better the relationships in Raven's life, especially Jezzie, because she was a bit of a mystery in the other books. And we finally get to hear what the St. Louis event was all about. Raven's world is dangerous and deadly and he wasn't always the top dog. I love that Karn creates such deep characters that you truly care what happens to them, even the side characters. A great read and good companion to the First Blood Series.
  • Reviewed in the United States on August 30, 2020
    Format: Kindle
    Oh my gosh!! I love this book!! If you have read the rest in the series you definitely need to read this one!! It tells the story of when Raven's team first met! It's the best prequel ever!!
  • Reviewed in the United States on November 16, 2023
    Format: KindleVerified Purchase
    I understand everybody every character wanting page time but I prefer my story in chronological order. This should have been book one in series.

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