Once upon a time there were three young ladies who, despite their fortunes, had been on the Marriage Mart a bit too long. They were known as the "Spinster Heiresses" . . . He's inherited a title, but not a penny to speak of, so the Earl of Rochdale knows he must find a wife--preferably one tolerably pretty and good-tempered, but definitely wealthy, and willing to exchange her fortune for his family name. His choice: Leonie Charnock, one of the season's...