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Anna Hackett
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Steel (Sentinel Security Book 4) Kindle Edition

by Anna Hackett (Author) Format: Kindle Edition
4.6 out of 5 stars 7,624 ratings
His skills and ruthlessness made him a legend.

The dark, dangerous former spy.

Now the operative turned billionaire known as Steel collides with fiery agent Hellfire when they discover they’re both on the kill list of a deadly assassin.

CIA agent Devyn “Hellfire” Hayden came from nothing and made herself into one of the CIA’s best deep-cover agents. She’s dedicated to her country. She’s always on the move. She’s a loner. Just the way she likes it. Letting people close is a weakness and she’ll never be weak again.

But when she finds herself under attack by an assassin targeting the world’s best intelligence agents, it sends her straight into the path of the only man who tempts her. The dark, lethal Killian “Steel” Hawke.

Killian Hawke rose through the ranks of the CIA, and knows his name is whispered in fear by his enemies. But when his sister needed him, he left and started Sentinel Security. He protects all those he considers his: his sister, his friends, his employees, and his clients.

But there is one stubborn redhead he also wants to claim.

As Devyn and Killian work together to unmask the assassin hunting them, they are forced to confront their white-hot attraction and their violent need to protect each other. Killian is tired of dancing around what he feels for her. Now that she’s in danger, he’ll do whatever it takes to make her safe, claim her heart, and possess her soul.

*** An action-packed standalone romantic suspense.
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  1. Book 4 of 6
    Sentinel Security
  2. Print length
    239 pages
  3. Language
    English
  4. Accessibility
    Learn more
  5. Publication date
    January 26, 2023
  6. File size
    2.6 MB
  7. Page Flip
    Enabled
  8. Word Wise
    Enabled
  9. Enhanced typesetting
    Enabled
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  1. “I’ll kill for you. You don’t realize it yet, but you’re on a very short list of people I’ll do anything to protect.”
    Highlighted by 152 Kindle readers
  2. “I feel like I’ve loved you forever, and if you let me, I’ll love you for the rest of our lives.”
    Highlighted by 112 Kindle readers
  3. Killian let his gaze run over her. I’m going to keep you safe. And then I’m going to keep you.
    Highlighted by 108 Kindle readers
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Product details

  • ASIN ‏ : ‎ B0BSTB52PR
  • Accessibility ‏ : ‎ Learn more
  • Publication date ‏ : ‎ January 26, 2023
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 2.6 MB
  • Simultaneous device usage ‏ : ‎ Unlimited
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Enabled
  • Word Wise ‏ : ‎ Enabled
  • Print length ‏ : ‎ 239 pages
  • ISBN-13 ‏ : ‎ 978-1922414748
  • Page Flip ‏ : ‎ Enabled
  • Book 4 of 6 ‏ : ‎ Sentinel Security
  • Customer Reviews:
    4.6 out of 5 stars 7,624 ratings

About the author

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Anna Hackett

Anna Hackett

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I'm a USA Today bestselling romance author who’s passionate about fast-paced, emotion-filled romantic suspense and sci-fi romance. I love writing about people overcoming unbeatable odds and achieving seemingly impossible goals. I like to believe it’s possible for all of us to do the same.

I'm the author of the bestselling and award-winning series Norcross Security, Team 52, Galactic Gladiators, and Hell Squad series and more.

For a free box set of my books, visit my website at www.annahackett.com

Customer reviews

4.6 out of 5 stars
7,624 global ratings

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Customers say

Customers find this book filled with adventure and drama, with a fast-paced narrative that keeps them engaged throughout. They appreciate the well-developed characters, particularly the kickass heroine, and praise the writing quality. Customers enjoy the book's humor, happy-ever-after ending, and steamy content, with one customer noting the intense scenes between the main characters.

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SuspensefulReadabilityCharacter developmentWriting qualityHumorSteamy contentPacingSexiness
55 customers mention "Suspenseful"55 positive0 negative

Customers find the book suspenseful, describing it as a fantastic tale filled with adventure and drama that keeps the action going throughout.

"This book is a fiery explosion of a battle of wills, danger and romance. I love the entanglement love and desire against two forces of nature." Read more

"...It’s a faced paced tale, that actually features some cameos from some old familiar faces, and keeps the reader guessing just where they will go..." Read more

"Anna Hackett’s books are full of life and adventure. Her heros are heart-throbbingly hot while her heroines are sexy and vibrant...." Read more

"...as far as action packed suspense, murders, surprises galore and romance as well. Steel and Hellfire are legends and after this one you'll see why...." Read more

38 customers mention "Readability"38 positive0 negative

Customers find the book entertaining and well worth the wait, with one mentioning it's fun to read with favorite characters.

"...Great read as always :)" Read more

"...I love reading her stories so I can lose myself in the excitement and passion...." Read more

"...broken family and didn’t experience love from her mother, this is a great series! Boss man Killian finds his match with Devyn...." Read more

"Sentinel Security book 4. I ABSOLUTELY LOVE THIS BOOK! Killian and Devyn aka Steel and Hellfire! Both super badasses...." Read more

25 customers mention "Character development"25 positive0 negative

Customers appreciate the character development in the book, particularly the kickass heroine and wonderful hero, with one customer noting how the author brings in characters from other books.

"...I loved that Steel matched her and respected her abilities. He never doubted her and that faith in her spoke volumes. These two had amazing chemistry." Read more

"Killian and Devyn is such an amazing duo. I just love the characters by Anna Hackett. I have been looking forward to this couple...." Read more

"...Two great characters matched up here. You'll laugh and get teary eyed with this one." Read more

"...She is a really great fighter. She is perfectly matched to Killian Steel Hawk. Killian has been chasing after Seven for a long time...." Read more

14 customers mention "Writing quality"14 positive0 negative

Customers praise the writing quality of the book, with one customer specifically highlighting the excellent portrayal of characters Devyn and Killian.

"...Killian and Devyn aka Steel and Hellfire! Both super badasses. They have circled each other for some time. Now they are both on an assassin hit list...." Read more

"These two were so good together. Loved their stories and getting to their HEA...." Read more

"Killian and Devyn is such an amazing duo. I just love the characters by Anna Hackett. I have been looking forward to this couple...." Read more

"Devyn Hellfire Hayden is active CIA. She is a really great fighter. She is perfectly matched to Killian Steel Hawk...." Read more

8 customers mention "Humor"8 positive0 negative

Customers enjoy the humor in the book, describing it as a fun happy-ever-after story with engaging banter.

"...This book is action packed, funny, gritty, dramatic, hopeful and oh so tingle worthy. I cannot wait for the next book." Read more

"...Two great characters matched up here. You'll laugh and get teary eyed with this one." Read more

"...A fun story with the usual twists and surprises with a fun happy-ever-after." Read more

"...And the author did not disappoint! Whew! So much fun. Glad to see Bram is getting a story soon...." Read more

7 customers mention "Steamy content"7 positive0 negative

Customers enjoy the steamy content of the book, with one customer noting the hot chemistry between the main characters, while another mentions the super hot scenes.

"...Solid story. Alpha male Killian is hot and would be any woman’s dream! I loved the secondary story about Devyn and Bram’s friendship...." Read more

"Steel is non-stop action, heat, and adventure. Steel moves primarily between New York and San Francisco and is one steamy, steamy novel...." Read more

"...There is action-good verses bad and the heat between the main characters are hot." Read more

"...These two bring the heat and heart...." Read more

5 customers mention "Pacing"5 positive0 negative

Customers enjoy the pacing of the book, describing it as fast-paced, with one customer noting it's a quick read that they couldn't put down.

"...It was fast passed and loved the kick ass way Hellfire took care of business...." Read more

"...This series is fun, fast paced, and an entertaining read. Cannot wait to read more of this author...." Read more

"Excellent read couldn’t put it down finished in one day and hope to read the next book with Bram book 5" Read more

"It’s like a X rated comic book. A quick read but it doesn’t hold my interest because it’s so not real." Read more

5 customers mention "Sexiness"5 positive0 negative

Customers find the book sexy, with one mentioning the handsome and badass characters.

"...As always, Anna gave us the perfect amount of action, sexiness, banter and supporting characters, as well as a hint into the next book...." Read more

"...Plus some really hot sexy parts! I totally loved reading this book and kind of hated getting to the end! I definitely recommend reading this book!!" Read more

"This book was everything I was expecting it to be. It was explosive, sexy and sweet. Enjoyed seeing the Norcross gang...." Read more

"...They are always got edge of your seat adventure. Handsome badass good guys and beautiful badass women." Read more

Top reviews from the United States

  • Barbara Grossie
    5.0 out of 5 stars Fire and brimstone
    Reviewed in the United States on April 26, 2025
    Format: KindleVerified Purchase
    This book is a fiery explosion of a battle of wills, danger and romance. I love the entanglement love and desire against two forces of nature.
    Helpful
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  • Judy Taylor
    5.0 out of 5 stars Another well written friends to lovers
    Reviewed in the United States on March 13, 2025
    Format: KindleVerified Purchase
    CIA agent Hellfire just broke free of her captors and found Steel head of Sentinel Security. She needs to warn him that they are both on an assassin’s hit list. Is she too late? She hopes not as Steel’s six million dollar car explodes. Did he make it out? She barely did.
    Helpful
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  • Spinneretta
    4.0 out of 5 stars Good
    Reviewed in the United States on January 29, 2023
    Format: KindleVerified Purchase
    Killian (Steel) and Devyn (Hellfire)

    When Devyn discovers that both she and Killian are on a hit list, the two of them have to work together to find out the person responsible, and take them down before someone gets hurt.

    We’ve seen Killian and Devyn’s interactions over the past few books and now it’s time for their story.
    Devyn is a woman who finds it hard to trust, while Killian is a powerful protector who wants her safe, but doesn’t want to hobble her, and he finally makes his move!

    It’s an Anna Hackett tale, which means expensive cars and booze, lots of action, adventure and of course, some romance.
    It’s a faced paced tale, that actually features some cameos from some old familiar faces, and keeps the reader guessing just where they will go next.
    A thoroughly enjoyable romantic suspense, for those that like their romance with lots of action and a bit of adventure.
    Helpful
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  • Kelly Rubidoux
    5.0 out of 5 stars A Reading the Paranormal Review
    Reviewed in the United States on February 8, 2023
    Format: PaperbackVerified Purchase
    Hoo-boy! The man who keeps all the other SS employees in line is on a hit list and I don't think he minds too much seeing as how the woman who keeps him guessing is also on it. I mean, I'm sure he doesn't love being on a hit list, but spending time with the lady who keeps up with him and is prepared for almost anything isn't a hardship.

    Steel and Hellfire! Killian is in league with Vander with his scary focus and quick action. Devyn is big on relying only on herself and has a hard time leaning on others even when they're as scarily competent as the Sentinel team. But with Killian (and others) in the crosshairs, she steps up and joins forces with Killian. She also makes a friend with the (thus far) grumpiest team member at SS and I kind of like the idea of fiery Devyn and grumpy Bram being BFFs. Heh.

    Given the scope of trying to track down who's put the hit out on them, they end up in SF with a few members of Norcross (and a meet-up with Killian's sister). I always dig seeing familiar faces pop up, so that was fun!

    An explosion or two, a dynamic duo that takes out bad guys with ease, a harrowing encounter that cemented Devyn and Bram's BFF-ness, and a whole lot of steam between Steel and Hellfire. To be fair, these two have been dancing around one another for a while, so the steam levels were expected. *thumbs up*

    -Kelly @ Reading the Paranormal
    4 people found this helpful
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  • RZ
    5.0 out of 5 stars A Male & Female James Bond
    Reviewed in the United States on January 28, 2025
    Format: KindleVerified Purchase
    Steel and Hellfire make the perfect lethal team. It was nice that there was a crossover with Vander Norcoss and his team. I still think Vander is more lethal than Killian, though Killian has a wider coverage with his company.

    Great read as always :)
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  • jjdejong
    5.0 out of 5 stars Fire and Ice
    Reviewed in the United States on January 27, 2023
    Format: KindleVerified Purchase
    Killian “Steel” Hawke has very few that he would do absolutely anything for, his sister, his co-workers and a fiery red head that goes by the call name “Hellion”. Devyn has been in some sticky situations but nothing quite like this. So when she knows that she needs to get to Killian to warn him, the chemistry that they are always tiptoeing around becomes blaring need. The two of them just need to get answers to who has painted a target on them.

    So here’s the thing, I knew I would love this book because hello Killian, but Anna gave me SO much more when we get to visit a certain group in San Francisco. If you have read the Norcross Security you will know so many of the cast that we get to see again, though selfishly I wished for a little more of a certain blonde God Saxon. We get the suspense that we all come to enjoy from these books and the fire between Steel and Hellfire is off the charts. Once they stop fighting others, they realize that fighting together is even better. They are the true meaning of Fire and Ice and just perfect together.
    2 people found this helpful
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  • RUN2JC
    5.0 out of 5 stars Best ever
    Reviewed in the United States on October 26, 2024
    Format: KindleVerified Purchase
    I have enjoyed this whole series but this last, book 4 Steel, was the best! It was fast passed and loved the kick ass way Hellfire took care of business. This one was hard to put down and will pass this read along to my besties!! Anna Hackett is my new favorite author.
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  • BradTL3
    4.0 out of 5 stars Devyn & Killian
    Reviewed in the United States on May 15, 2024
    Format: KindleVerified Purchase
    Anna Hackett’s books are full of life and adventure.  Her heros are heart-throbbingly hot while her heroines are sexy and vibrant.  I love reading her stories so I can lose myself in the excitement and passion. I'm always on the edge of my seat - moving between laughter, shock and heart-pounding feelings - waiting for the next sentence and the next emotion.
    Helpful
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Top reviews from other countries

Translate all reviews to English
  • Rajeev Sabade
    5.0 out of 5 stars Loved it
    Reviewed in India on December 25, 2024
    Format: KindleVerified Purchase
    I love reading about strong heroines. This is a great addition to the ones i have read. I especially loved the epilogue. Thanks for the good read.
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  • Schwesti
    5.0 out of 5 stars Brilliant
    Reviewed in Germany on January 27, 2023
    Format: KindleVerified Purchase
    Dieses mal auf Deutsch
    Und wieder ein tolles Buch von Anna Hackett. Steels und Hellfires Story wie erwartet spannend zu lesen und wie immer eine Katastrophe für die Nachtruhe, denn, einmal angefangen, legt man es einfach nicht mehr aus der Hand. Hackett versteht es meisterhaft den Leser zu fesseln und so ertappt man sich dabei ein bisschen neidisch zu werden oder zu überlegen, ob die eigenen Karriereentscheidungen nicht vielleicht doch einen Kick in eine andere Richtung vertragen hätten.
    Looking foward to Bram's story
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  • LL144
    5.0 out of 5 stars Steel Sentinel Security Book 4
    Reviewed in Canada on April 29, 2023
    Format: KindleVerified Purchase
    Loved it! Steel and Hellfire together…Wow! Again Anna Hackett has written a story woven with so many deadly surprises you have to keep reading. Never did I guess how this story would end. Read it and find out! Killian Hawke and Devyn Haden are known in the security and CIA arena as Killian “Steel” Hawke and Devyn “Hellfire” Hayden and are named for their deadly skills taking out the bad guys. They have fought the attraction to each other but are forced to combine their skills to take a rogue CIA operative determined to kill the top agents for his own nefarious returns. Fighting a rogue CIA trainer will take all their combined skills to hunt this rogue down….and fight the attraction they have for each other!
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  • Cheffie
    5.0 out of 5 stars Killer Contract….
    Reviewed in Australia on October 12, 2023
    Format: KindleVerified Purchase
    In this action packed steamy read Killian “Steel” Hawke and CIA Agent Devin “Hellfire” Hayden find themselves on an assassin kill list and must try to find out who it is while staying alive and fighting against falling for each other…this is definitely an edge of your seat, no holds barred steamy read.
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  • Ran
    5.0 out of 5 stars Awww
    Reviewed in the United Kingdom on March 7, 2024
    Format: KindleVerified Purchase
    What a story. Interesting ,intense, thrilling story. I love the story starts and ending. I like Anna lots books they are every enjoying to read.
    Report

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