Caroline — Jasmine Cresswell

Society gossips had branded her a harlot. Now, she was forced to live up to her reputation... Caroline Adams was one of the most ravishing creatures of her day. Yet her beauty had only brought her grief. She had been a profitable decorative addition to her stepmother's fashionable London gambling house. Now, the Comtesse had asked her to leave. With her reputation already in tatters, Lord Carrisford's offer to make her his mistress seemed the only logical solution. Caroline was certain she could make her escape before the handsome lord had truly compromised her. But Lord Carrisford' had other plans for Caroline. Soon she faced the most important decision of her life. And with the knowledge that she was falling in love with the man she despised...
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Mills and Boon UK Edition:

By helping her stepmother run a fashionable London gambling-house, Miss Caroline Adams is well used to receiving propositions of varying eligibility. But no offer she has ever received in the past has prepared her for Lord Carrisford's arrogantly mercenary proposal of marriage.

Swearing never to forgive the insults heaped on her by the elegant diplomat, she succeeds in channeling her anger into more devious pathways of revenge. Only to find, when Lord Carrisford appears to be motivated more by his desire to thwart a Bonapartist spy-ring than by her beauty, that she is playing a far deeper game than ever she dreamt...