Capturing the Bride by Samantha Holt

If one is very, extremely desperate, then one may call on the services of a clandestine group of men.
The Kidnap Club—known to few—specialize in helping women out of difficult situations.
Arranged marriages to awful men, for example.
Miss Grace Beaumont is at the mercy of her uncle who is determined she marry the depraved Mr. Worthington. Desperate times call for…well, the Kidnap Club.
It seems insane. Perhaps it is. But anything is better than being married to that man.
Lord Nash Fitzroy has looked after many a kidnapee over the past few years, but none make him want to break the cardinal rules as much as Grace. Her determined spirit, quick wit, and, let’s be honest, her pretty looks have him struggling to remember his role in this.
Protector, defender, and occasional shoulder to cry on.
His way with women and the almost derelict offerings of his ancestral home as a hideaway make him a perfect pretend kidnapper. He doesn’t much mind the money involved either, seeing as his father cut him off.
Which means, he cannot afford to get this wrong. No matter how tempted he is to show Grace that Worthington is not a prime example of how a man should be and burn the damned rule book.