Hasty death - M. C. Beaton

The future's not so rosy for Lady Rose Summer . . .

Longing for a life of emancipation, Lady Rose Summer has abandoned the comforts of her parent's house to become self supporting. But life as a working woman isn't quite as liberating as Rose has imagined - fortunately for her, though, her drudgery comes to an end when old acquaintance Freddy Pomfret is murdered and her help - and upper class connections - are required by amateur sleuth Captain Harry Cathcart.

So as Rose and Harry prepare to take on the usual Edwardian social rounds, little do they expect to uncover a devious blackmail plot and an unexpected killer.