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LLMBooks Publishing

The Darkest Oath

The Darkest Oath

A historical fantasy romance of yearning, rebellion, and immortal consequence

⭐⭐⭐⭐⭐ 4.6

Her love is his only salvation—
and the undoing of everything he needed to survive.

He was meant to die a knight.
Instead, he lives—cursed, eternal, and forbidden to love.
Now, in the shadows of the crumbling kingdom of France,
one woman may be his salvation…
or the reason he falls.

Not all life is living.
Not all oaths are holy.

Slow-burn. Closed-door.
Bleeds with loyalty, aches with love.

The curse is real. The love is forbidden.
The oath was only the beginning.

Take the Oath. Choose the Curse.
Step into a world where love is treason and every vow carries a price.

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Main Tropes and Themes

  • Political Intrigue
  • Forbidden Love
  • Tragic Rose
  • Slow-Burn Romance
  • Betrayal & Vengenance
  • Beauty & the Beast Vibes
  • Love & Redemption
  • War & Rebellion
  • Scars & Sacrifice

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What is this story about?

An immortal knight. A fearless rebel. A love forged in the fires of war.

Chevalier Rollant de Montvieux was once a man of honor. Betrayed on the battlefield and bound by a sorceress’ curse, he has spent six centuries serving the French crown—immortal, untouchable, and doomed to lose anyone he dares to embrace in love. As revolution smolders in the streets of Paris, Rollant clings to duty as his only purpose in his wretched existence—until he meets her.

Élise has nothing left to lose. Defiant, outspoken, and determined to fight for a future free from tyranny, she has no patience for kings—or the loyal dogs who serve them. But when she crosses paths with Rollant in a spy’s disguise, she senses something different beneath his quiet strength—a man burdened by secrets, trapped in a fate not of his choosing.

Drawn together by forces neither can control, their connection deepens in the shadows of a crumbling world. But Rollant knows love is forbidden to him. To hold Élise is to curse her to certain death.

As France teeters on the edge of war, Rollant must make an impossible choice: honor his unbreakable oath and protect her from afar, or risk everything—including her life—for one fleeting chance at love. And Élise must decide where her true battle lies: in the streets, fighting for freedom, or in the arms of a man who may be her ruin—or her greatest salvation.

Who is this story for?

For readers who love slow-burn, fade-to-black forbidden romance and gothic historical fantasy, The Darkest Oath weaves echoes of Beauty and the Beast into a sweeping tale of sacrifice, love, and redemption set in the dark underbelly of the French Revolution, where love itself may be the deadliest betrayal.

Content Disclaimers

BookCave Content Rating:

Moderate with Community Content Elements / Themes, including:

  • closed-door romance
  • violence - assault, abuse, executions
Author Rating:

The author rated this book for ages 14+ for violence, closed-door romance, and adult themes. 

Product Information

Paperback Size: 5" x 8"

490 pages

Printed on-demand by Lulu Direct

ePub File Size: 1.2 MB

Delivered by BookFunnel to Purchase Email

Publisher: LLMBooks Publishing
Published: July 2025
ISBN-13: 978-1-961759-26-8
Genre: Gothic Fantasy Historical Romance

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Goodreads Book Giveaway

The Darkest Oath by Lauren Lee Merewether

The Darkest Oath

by Lauren Lee Merewether

Giveaway ends October 19, 2025.

See the giveaway details at Goodreads.

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  • ★★★★★

    "The Darkest Oath delivers a haunting Gothic tale set amid the blood-soaked streets of revolutionary France...

    a captivating love story...a slow-burn romance that will keep the reader riveted to the story. I could not put it down.”

    - Delene Vrey for Readers’ Favorite

  • ★★★★★

    "What truly elevates The Darkest Oath is how it doesn’t shy away from the harsh realities of war, betrayal, and the heavy burden of love in a fractured world...

    provocative and emotionally
    stimulating...

    Merewether has created a masterpiece.”

    - Miche Arendse for Readers' Favorite

  • ★★★★★

    "Merewether paints an emotional tug-of-war…

    moments of tenderness in the turmoil of the revolution...

    Merewether’s fabulous combination is a win. 

    Very highly recommended.”

    Jamie Michele for Readers’ Favorite 

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