Betrothed by Christmas A Holiday Duet
"A lady's gift for seduction by Jess Michaels : Lady Evangeline is a Diamond of the First Water, but she fears (that) her father will match her to his own advantage, not (to) hers. She decided (that) marrying a biddable groom is the only way to salvage her future and chooses her old friend astronomer Henry Killam. But she soon realizes (that) Henry isn't quite as marriageable as she first believed, and her feelings for him are stronger than she ever imagined." -- from back cover.