The Secret Life of Connor Monahan(2001)
(The fourth book in the Monahan series)
A novel by Elizabeth Bevarly
Winona Thornbury, with her Victorian dresses and her equally old-fashioned ideas about love, had definitely been born into the wrong century. No man had ever tempted her to give in to wanton desire, until she met a mysterious stranger who made her ache to cast aside her flowing gowns -- and her quaint notions of what was "proper." But Connor Monahan wasn't the man he appeared to be. He was an undercover cop who thought she was running a call-girl ring! And this "madam's" breathtaking blend of seeming innocence and made-for-sin sensuality was making it very hard for him to keep his mind on the case -- and his hands off the lady.... Silhouette Desire #1406, December, 2001.
Used availability for Elizabeth Bevarly's The Secret Life of Connor Monahan
December 2001 : UK Mass Market Paperback