The Crown of Moonlight

She's the Highlander who saves his life with forbidden magic. He's the immortal stranger who falls first—one healing touch, one quiet kindness at a time.

Flora Domhnall is the last of her line, her Highland clan's only defence in a war neither side can win. When she finds a dying immortal warrior in her woods, healing him is a terrible risk. But if he dies on her land, her clan will pay the price.

The choice she makes will bind her fate to his.

Chyr has spent four centuries constrained by the oaths carved into his flesh—oaths that read his every thought. Violence and honour are all he knows, and Flora's brave, impossible mercy breaks him open.

Hunted across the burning Highlands, they can only rely on each other. The longing grows harder to resist with every mile they share a saddle, every sacrifice made in silence, and every night they guard each other in the dark.

He's already fallen. She's fighting not to fall.

Then the ancient sovereignty magic of the Cailleach Queens awakens in Flora—and marks her as something the world hasn't seen in four hundred years.

And Chyr's oaths may demand he destroy the one person he can't bear to lose.

For her, he'll try to break his oaths. Even if it kills him.

From award-winning author Martina Boone, The Crown of Moonlight is a mythic romantic fantasy perfect for readers who love the sweeping Highland romance of Diana Gabaldon's Outlander and the dark, aching magic of Rachel Gillig's One Dark Window.

★ WHAT READERS ARE SAYING ★

"I COULD NOT STOP reading. The slow burn! THE TENSION! THE YEARNING!! The romance was just so good I was on the floor. The Scottish lore is incredible and the world building sublime." —BookTok Reviewer

"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." —ARC Reviewer

"I didn't expect a Highland fantasy to feel this haunting and tender, but it 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

"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

"Windswept moors, crumbling castles, and an undercurrent of old-world magic that hums through every scene...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...As romantic as it is epic." —ARC Reviewer

★ TROPES & THEMES ★

✨ Emotionally dangerous slow-burn romance ✨ Immortal warrior who falls first ✨ Fierce, strategic heroine with agency ✨ Forced proximity and yearning ✨ Forbidden Celtic elemental magic vs. ancient oaths ✨ Loyal animal companions (Shadehounds) ✨ Subverted mystical coronation ✨ Highland Jacobite-inspired historical setting ✨ Dual POV (mortal + immortal perspectives) ✨ Slow burn to heat ✨ One epic, forbidden love (no love triangle) ✨ Fated mates energy without the trope

Book One of The Five Crowns series.

Contains explicit intimate scenes and violence in the context of war. Please check warnings. Uses UK English spelling.