The Marriage Ring by Cathy Maxwell

The woman who will one day wear Richard Lynsted's ring will be genteel, dainty, and well-bred.

This eliminates Grace MacEachin on all three counts. A hellion of the first order, the alluring, infuriating woman would be nothing more than a passing temptation to an upstanding gentleman like Richard—if it weren't for the fact that she's trying to blackmail his father!

Or, as Grace sees it, trying to get justice—and maybe just the slightest hint of revenge on the family that tore her life asunder when she was just a girl. And as for Lynsted, well, the stuffy, humorless man wouldn't suffer for time spent in company more exciting than that of his company ledgers. Only when Richard gets Grace alone, she discovers he may know a thing or two about excitement after all . . .