Ex-Spinster by Christmas (House of Haverstock #4)
Cheryl Bolen

The very idea of his Lady Caroline throwing herself away on the likes of the vile Lord Brockton rankles Christopher Perry. A pity he cannot offer for her himself, but a duke’s daughter is too far above his touch, given his family’s humble origins. Nevertheless, Christopher attends the Duke of Aldridge’s Christmas house party with the intention of thwarting Lady Caroline’s grave misalliance with Brockton. If only he’s not too late . . .