Risingshadow
Speculative Fiction Books
  • About
    • Home
    • Articles
    • About Us
    • Contact Us
    • Privacy Policy
    • Terms of Service
    • Staff Members
    • Newsletter
    • Finnish (FI)
  • Books
    • New Releases
    • Coming Soon
    • Bookshelf Activity
    • Advanced Search
    • Book Reviews
    • Genres & Tags
    • Submit Book
  • Community
    • Discussions
    • - Recent Messages
    • - Recent Topics
    • - Hot Topics
    • - Popular Topics
    • - Search
    • CHALLENGES
    • - Reading Challenge
    • - Book Trivia Quiz
  • Home
  • Books
  • Robin O'Connor
  • Monster Mercenary Mates
  • Betrothed to the Alien Mercenary

Betrothed to the Alien Mercenary: A Steamy Sci-Fi Monster Romance

Monster Mercenary Mates #3 / 8
by Robin O'Connor
Betrothed to the Alien Mercenary: A Steamy Sci-Fi Monster Romance (Monster Mercenary Mates #3) by Robin O'Connor
★ 10.00 / 1
123456789110

Trust no one. Hide who I am. Complete the mission. Easy... until I meet him.

Evie
When a dying Xurtal princess makes me promise to save her planet, I have no choice but to take her place. Me, a human girl, pretending to be an alien royal. To survive the assassination attempts, I need a bodyguard. Enter Aramon: cocky, infuriating, and scorchingly hot.

He has to pretend to be my mate to protect me. A fake fiancé for a fake princess. What could possibly go wrong?

But the way he looks at me feels anything but fake. And if he discovers my secrets, I’ll lose more than my mission—I might lose him too.

Aramon

Playing bodyguard to a spoiled princess? Not my dream job. But the second I meet Evadne, everything changes. She’s my perfect match, even if this is all supposed to be an act.

I’ve sworn to protect her, and it’s more than duty now. It’s instinct. The deeper we go into this dangerous game, the harder it is to let her go.

She may not trust me, but I’ll prove one thing: this princess is mine, no matter what galaxy-shattering secrets she’s hiding.

This is book three in the Monster Mercenary Mates series. This sci-fi monster romance features one irreverent, cocky alien pilot, a fake princess with a huge secret, an even faker betrothal, and a steamy HEA.

Amazon: Check Best Offer

Science FictionRomanceAlien RomanceMonster RomanceAdultAbduction
Release date: December 10, 2024 (Princely Gates Publishing)
Total user reviews (1)

Book Order
Amazon
Kindle
Audible
Amazon CA
Amazon UK
Amazon Europe

Your Rating
☆☆☆☆☆☆☆☆☆☆
Standard Shelves

Join the Discussion
You can post as a guest or sign in for more features.
Have questions about this book or want to share your thoughts? Join the conversation!

Robin O'Connor

Robin O'Connor is a writer who thrives in the wild, imaginative worlds of sci-fi and monster romance, where the stakes are high, the passion runs deep, and the heroes are as strong as they are undeniably sexy. Known for her steamy stories filled with alien heroes and quirky heroines, Robin crafts tales that combine heart-pounding adventure with sizzling chemistry, all wrapped in a fantastical universe.

Living in a house that’s equal parts cozy and chaotic, Robin shares her space with her husband, their four-year-old son, and a collection of books—hundreds of them, all hers—and computer parts that look straight out of a mad scientist’s workshop. As someone who’s always juggling a half-dozen projects at once, Robin’s home is never dull. Yet, despite her busy life, she always makes time for her readers. Whether it's posting quirky extras, sharing cover reveals, or answering fan questions, she’s active on social media, building a strong connection with her audience.

Read more ...

Robin’s most popular works include Beast Unburdened, the first book in the Gladiators of the Vagabond series, which has captivated readers with its compelling characters and otherworldly thrills. She also pens the Serpents of Serant series, where fans can dive into the sultry world of naga warriors, starting with The Naga Outcast's Unwanted Mate and The Naga Maverick's Determined Mate. Her stories are known for their playful yet passionate tone, blending romance with high stakes and thrilling plot twists.

When she’s not writing, Robin can be found immersed in all things nerdy—from books to tech to podcasts. Always experimenting with new ideas and concepts, she’s constantly pushing herself to create stories that are both entertaining and captivating.

For readers who enjoy romance that’s out of this world, packed with tension, wit, and a healthy dose of heart, Robin O'Connor’s books are a must-read. With each new release, she invites her audience deeper into the vibrant, intense universes she’s created, and there’s always more to discover.

Monster Mercenary Mates

In a world where danger lurks around every corner and power comes with a price, Monster Mercenary Mates introduces readers to a universe where mercenaries aren’t just soldiers—they’re monstrous beings bound by loyalty, honor, and passion. This is a series where forbidden desires collide with fierce battles and dangerous stakes, offering a heady mix of action, romance, and unrelenting suspense.

Read more ...

Set in a gritty, high-stakes world where mercenaries are both feared and revered, Monster Mercenary Mates immerses readers in a universe where combatants aren’t just human but monstrous, each with their own unique abilities and darker sides. The mercenaries are powerful creatures—shapeshifters, beasts, and warriors—who walk the line between heroism and destruction, their loyalty to each other being their greatest strength and their deepest vulnerability.

The series doesn't shy away from complexity. As these mercenaries face daunting missions and unravel dangerous plots, they also wrestle with their own identities and emotions, making their journeys deeply personal. For every fierce fight, there’s a passionate connection that’s built on trust, raw attraction, and the undeniable bond of being mates. The chemistry between characters is electric, and the romance is far from predictable. Every relationship is as complicated and nuanced as the world they navigate.

What makes Monster Mercenary Mates stand out is its ability to blend intense world-building with multi-dimensional characters. Readers are drawn into a setting where power, betrayal, and survival are ever-present, and yet, amid all the chaos, there is always the hope of finding something real—whether it’s a love that transcends boundaries or the camaraderie forged through battle. The monsters in this world are not just scary—they’re compelling, deeply human in their struggles, and utterly irresistible.

With sharp, engaging writing, Monster Mercenary Mates promises to keep readers on the edge of their seats, eager to see what happens next. Each installment weaves a tale that explores not only the battles fought outside but the ones waged within. It’s a series about survival, loyalty, and the monsters within us all, and once you enter this world, you won’t want to leave.

If you're looking for a series that mixes steamy romance with high-action adventure, Monster Mercenary Mates offers the perfect escape into a world where nothing is what it seems and the only thing stronger than their monstrous nature is the bond they share.


Monster Mercenary Mates consists of six books and series is set to expand with the upcoming release of two more books. The current recommended reading order for the series is provided below.

Caught by the Alien Mercenary (Monster Mercenary Mates #1)
★ 10.00 / 1
Stolen by the Alien Mercenary (Monster Mercenary Mates #2)
★ 10.00 / 1
Betrothed to the Alien Mercenary: A Steamy Sci-Fi Monster Romance (Monster Mercenary Mates #3)
★ 10.00 / 1
Entangled by the Alien Mercenary: A Steamy Sci-Fi Monster Romance (Monster Mercenary Mates #4)
★ 10.00 / 1
Saved by the Alien Mercenary: A Steamy Sci-fi Monster Romance (Monster Mercenary Mates #5)
★ 10.00 / 1
Chased by the Alien Mercenary (Monster Mercenary Mates #6)
★ 10.00 / 1
Tempted by the Alien Mercenary: A Steamy Alien Sci-fi Romance (Monster Mercenary Mates #7)
⧗ 10.00 / 2
Monster Mercenary Mates #8 (Monster Mercenary Mates #8)
⧗ 10.00 / 1

Book Reviews

12/16/2024
Chelsea K avatar
Chelsea K
661 books, 486 reviews, 214 posts
★★★★★★★★★★ 10 / 10

I really enjoyed getting to know Evie and Aramon in this book as well as getting to know Aramon’s twin brother Solear. I have enjoyed everything by this author that I have read so far and look forward to reading Tass’s story Entangled by the Alien Mercenary when it comes out.

I received a free advanced reader copy of this book from the author and am voluntarily leaving a review.

^ Top
Follow Us: Newsletter | Facebook | X | Mastodon | RSS
Hosted by Planeetta Internet Oy
© 1996 - 2025 Risingshadow. All rights reserved.
This website uses cookies to ensure you get the best experience on our website.
Privacy Policy