The Crown of Moonlight

A slow-burn Highland fantasy romance about a mortal woman with forbidden magic, an immortal warrior whose oaths may force him to destroy her—and the impossible pull between them that neither world was built to survive.

“The Crown of Moonlight is an immersive fantasy for readers who love magic, history, and aching romance. Perfect for fans of Sarah A. Parker and Rachel Gillig.” —Librarian/Netgalley Reviewer

A LEADER

Flora Domhnall is the last of her line, her clan’s only defence in a war between the Everfolk where human lives are cheaply spent. Then she finds a wounded immortal warrior bleeding in her woods. His oaths control him. And what she was born to be is exactly what they were created to prevent.

Flora’s own morality is a trap. If she helps him, she risks her clan. If she leaves him, she becomes everything she despises.

A WARRIOR

Chyr has spent four centuries bound by the oaths carved into living runes on his skin before he was old enough to understand them. He’s meant to be immortal, but an ambush has left celestial iron poisoning his blood and his body failing. To stop the war that will consume both worlds, he must reach the doorway back to his home before it seals for another year. Trusting the kindness of the woman who has every reason to betray him is his only chance.

A CHOICE

Bound by necessity and hunted on every side, Flora guides Chyr across moor and mountain while war burns through her beloved Highlands and an ancient power wakes beneath the hills, one that has waited centuries for this woman and this moment. Each mile brings Flora closer to the man sworn to stop what she’s becoming. And Chyr’s oaths punish his every rebellious impulse while his carefully held honour fractures beneath her kindness.

The yearning between them becomes more dangerous than the war itself. Chyr can’t choose her without breaking, and Flora can’t save him without betraying her nation and her fate.

PERFECT FOR FANS OF Diana Gabaldon, Sarah A. Parker, Rachel Gillig, and Rebecca Ross—or anyone who wants their hero broken open by a woman’s kindness.

“As a massive fan of Outlander, I went into this story hoping for a touch of sweeping romance, aching emotion, and lush world-building—and I was not disappointed…the same sense of fate-touched love, and that slow, simmering tension between two characters who feel destined for each other.” —Lilith’s Library

TROPES, THEMES, AND DESCRIPTORS:

Enemies to lovers · Slow-burn to heat · Emotionally dangerous romantasy · He falls first · Forbidden love · Immortal wounded hero · Fae power vs. forbidden ancient elemental magic · Oaths and impossible honour · Hidden identity · Dual first-person POV · Atmospheric Highland Gothic Jacobite historical fiction setting · Chosen one who doesn’t want to be · Found family · Political intrigue

Buy it now, or read a sample chapter.

What Readers Say

"This book slowly crawled its way to becoming one of my top reads of 2025!! I COULD NOT STOP reading this book last night. The SLOW burn! THE TENSION! THE YEARNING!! "

— Tata.Lifepages

"One of the best books I've read this year! Set in a Celtic fantasy world inspired by Scottish history, this epic fantasy romance is absolutely amazing. Martina Boone's descriptions of the hauntingly beautiful highlands are lyrical and vivid…Flora is such an inspiring main character: resilient, wise, courageous. I love her deep connection to animals, the land, and the elements, as well as her kind heart."

— Forest Crone Books

"As a massive fan of Outlander, I went into this story hoping for a touch of sweeping romance, aching emotion, and lush world-building — and I was not disappointed. In fact, the similarities were uncanny in the best possible way. There’s the same richness of setting, the same sense of fate-touched love, and that slow, simmering tension between two characters who feel destined for each other, even as the world threatens to pull them apart."

— Lilith's Library

"You can’t help but admire these two great main characters. They both have all the qualities I would wish for in a strong story line like this. Compassionate, strong, fierce and loyal with a deep connection to each other that matters, but they also have plenty of conflicted emotions and loyalties that may not align that they both must navigate. The depth of writing makes these characters feel like they will jump right off the page at you."

— Maui Reader

"An immersive fantasy for readers who love magic, history, and aching romance. Perfect for fans of Sarah A. Parker and Rachel Gillig. If you love stories where courage and desire collide against impossible odds, this one belongs on your shelf."

— Librarian/Netgalley Review

"This book was such a breath of fresh air. I fell in love with the world and the main characters, Flora and Chyr, within the first two chapters. Chyr is the perfect mix of morally gray and golden retriever energy—with plenty of “touch her and die” vibes! Meanwhile, Flora is a strong yet soft FMC, learning her magic and its power as she goes…they’re just meant for each other, and it’s beautiful. I was squealing and kicking my feet the entire time! I’ll be thinking about Flora, Chyr, and this magical world for a long time to come."

— Hannah Dreams Books

"Every scene felt cinematic, wrapped in moonlight and mystery. The romance is gorgeously written — slow-burn, emotionally layered, and incredibly satisfying. The characters are real, raw, and beautifully flawed. Their journey is not just one of love, but of healing, trust, and transformation. "

— ARC Reader Dayna

"Lyrical without losing momentum, pulling you deeper into a world of moonlit forests, cursed crowns, and political intrigue that keeps the stakes constantly rising. The twists are smart and satisfying, the lore is rich, and the slow-build mystery surrounding the Five Crowns adds irresistible depth. Utterly absorbing."

— Librarian/Netgalley Review

"Atmospheric, romantic, and utterly absorbing, The Crown of Moonlight is the kind of fantasy you sink into and don't want to climb back out of. A captivating beginning to a series that promises even more magic and danger to come."

— Librarian/Netgalley Review

"A beautifully imagined fantasy that blends magic, mystery, and romance into an enchanting opening for The Five Crowns series. Martina Boone crafts a world that feels both ancient and alive, full of shimmering enchantments, dangerous secrets, and a royal legacy that refuses to stay buried."

— Librarian/Netgalley Review

"I didn't expect a Highland fantasy to feel this haunting and tender, but The Crown of Moonlight swept me away. Boone gives us Flora Domhnall, a courageous woman caught between loyalty to her clan and the dangerous pull of an immortal warrior...a slow-burn romance wrapped in rich history and magic."

— Librarian/Netgalley Review

"The heroine is instantly compelling—strong yet vulnerable, torn between duty and desire, and determined to uncover the truth even when it puts her in the path of danger. The relationships are layered with tension and emotion, and the romantic chemistry crackles through every shared glance and whispered secret."

— Librarian/Netgalley Review

"Boone’s prose feels both timeless and cinematic—windswept moors, crumbling castles, and an undercurrent of old-world magic that hums through every scene. The dual POV structure adds depth, letting readers feel both the mortal cost of Flora’s courage and the immortal ache of Chyr’s duty. Their chemistry is beautifully rendered—equal parts tenderness and turmoil—never rushed, always earned. Boone deftly weaves themes of honor, sacrifice, and destiny into a narrative that’s as romantic as it is epic. Fans of A Court of Thorns and Roses, Outlander, or The Cruel Prince will feel right at home—but Five Crowns stands proudly on its own."

— ARC Reader Lisa

"Lush and atmospheric, weaving together Highland landscapes, fae sorcery, and political intrigue with a slow-burn romance that feels both inevitable and heartbreaking...The Highlands are painted with haunting beauty, the fae rebellion pulses with danger, and the chemistry between Flora and Chyr builds with delicious tension...For readers who crave romantasy with grit, passion, and mythic resonance, The Crown of Moonlight delivers in spades."

— Netgalley Review

"This book was so much more than I expected in all the right ways. It tore my heart apart and stitched it back together too many times to count. The Crown of Moonlight covers grief, love, lust, hope, rage, morals, values, ethics, and everything in between. There were two scenes in this book that had me put the book down and stare off into the abyss and even though it’s usually caused by heartbreak I love when a book makes me do that."

— ARC Reader Samantha

"I immediately started getting lost in this book, and it was a struggle to force myself to stop... Introduced me to a world I didn't even realize I needed."

— ARC Reader Tash

"I haven't read a book that I can confidently rate 5 stars in a bit! I got to get my hands on a copy of Crown of Moonlight as an ARC and I loved every second of it! "

— ARC Reader Shelby

"If you love star-crossed romance and heroines who deserve their power, you'll love TCoM ♥"

— ARC Reader Nora

"Wow... The story is beautifully revealed but it's the chemistry between Flora and Chyr that kept me engaged. She is a fragile human, but her heart is mighty, even when her self-doubt and fear keep her on pins and needles. Chyr admires her strength, as any intelligent man should, and protects her well-being and choices even when he realizes her destiny is a dangerous one. The slow burn romance is very well-executed."

— ARC Reader Sumi

"I gobbled this up! The Celtic back drop allows for a unique feel to the ever popular romantacy genre. This was an immersive experience due to the wonderful world building, awesome character development, and a magic system that is easy to understand and feels unique."

— ARC Reader Nikkiya