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The Duke’s Ruthless Vow: A Regency Romance Story

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"You think a signature can destroy me, Mrs. Davenport?" the Duke leaned in, his voice a low growl. "I will make you wear my ring until you forget your own name."

Eight years after her father’s ruin, Clara Davenport returns to Mayfair with a fortune and a vendetta. Her Sebastian Kincaid, the Duke carrying the legacy of the man who stole her life.

He is the Ruthless Duke, a pillar of granite who rules the ton with an iron cane. She is the Vengeful Widow, an ice queen in black silk armed with deadly secrets.

When Sebastian uncovers her sabotage, he traps her in a public, binding engagement to silence her. But as their barbs turn into breathless whispers, the cold friction of their war ignites a fire neither can extinguish.

"I sought to ruin you, Ashcroft," she breathed. "Then why," he rasped, "are you the only thing I want to save?"

Amidst the storm-battered cliffs of Cornwall, secrets emerge that shatter Clara’s reality. She must finish her work of ruin, or surrender to a passion that threatens to burn their empires to the ground.

Perfect for fans of Bridgerton and Evie Dunmore, this steamy Regency romance features a battle of wits and a high-stakes fake engagement. One-click your copy of The Duke’s Ruthless Vow today!

296 pages, Kindle Edition

Published March 12, 2026

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About the author

Margot St. James

13 books1 follower

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Profile Image for Elisabeth.
339 reviews3 followers
April 6, 2026
I am rather disappointed in this novel. It is the third book by this author that I have read. I enjoyed the first two, but I really had to push myself to finish this one.
The plot I liked.
The duke was doing too much surrendering again and again and again. He told Clara the same things over and over again.
The same scent had to be described again and again. Sandalwood and iron... It started reeking.
There was way too much repetition. How forgetful does the author think her readers are? Very boring.

Her silver-grey silk gown,...., was a salt-stained ruin....
Her silver-grey gown,........was now a salt-crusted ruin.....
The silver silk - mud-stained from the road and salt-bitten from the cliffs....

There are more description of this gown. And this is just one example of repetition. There are quite a few others. Ad nauseum repetition is a cheap and very tedious literary device insulting the reader's intelligence. It will be a while before I red another book by this author.
Displaying 1 of 1 review