From "New York Times" bestseller M. C. Beaton: Imagine if the rebellious sister from "Downton Abbey" and her maid got mixed up in murder. Captain Harry Cathcart and Lady Rose Summer have entered into an engagement of convenience-convenient for Rose, who wants to avoid being sent to India with all the other failed debutantes. Despite her considerable good looks, Rose's sharp intellect and radical ideas have served to repel her would be suitors. Rose's parents, unaware of the deception, are hardly thrilled that their only child is marrying a man in trade, but Harry comes from a good family, and at the very least, they hope he will keep their troublesome daughter out of mischief.