Having long abandoned any hope of making a match, twenty-six-year-old Beatrice Hyde-Clare finds herself a little overwhelmed by her engagement to the Duke of Kesgrave. Cloying society matrons clamor for her attention while her aunt reels off an endless list of servants she will have to oversee. Even the most intrepid female would quake at the prospect of managing eight footmen!Fortunately, Bea knows the perfect distraction-an intriguing mystery-and pays a call on the Countess of Abercrombie, who had promised her that very thing only the evening before. But her ladyship is reluctant to discuss the details with a newly minted duchess-to-be, and it dawns on Bea that the investigation cuts closer to home than she could have ever imagined. Because this time the murder victims are her own mother and father, who had died twenty years before in a seemingly straightforward boating accident. Alas, nothing is straightforward, and as Bea digs into her past, she discovers with growing horror that she has no more idea how to be a daughter than she does a duchess.

Having inexplicably nabbed the Duke of Kesgrave, twenty-six-year-old spinster Beatrice Hyde-Clare is determined to marry him at once. And no amount of handwringing from anxious family members, worried friends and well-meaning acquaintances will convince her to delay. Except...maybe she is a littleswayed by her uncle's efforts to make amends for treating her with cold indifference during her childhood. While her aunt's concern about the growing scandal around her unfortunate habit of unmasking murderers in the middle of society events isn't entirely unfounded. Then there's the truly unfathomable appearance on her doorstep of the former Miss Brougham, the spiteful heiress whose cruel taunts derailed Bea's social career. Remarkably, the society matron has a mystery to solve and knows Bea is the only person who can help her. A dead grandfather, a missing jewel, a cryptic letter, an opportunity to condescend to her archnemesis-the case seems simple enough. And yet somehow it all goes terribly, horribly wrong.

The former Beatrice Hyde-Clare is having a little trouble adjusting to her new situation. Now installed as the Duchess of Kesgrave in elegant splendor in Berkeley Square, she is confounded by the stately residence's seemingly endless array of rooms and every time one of the maids addresses her as "your grace," she flinches. And the butler! Oh, yes, that imposing servant holds her in utter contempt and has no qualms about sharing his opinion with the rest of the staff. It's all so wretched. But just as Bea begins to despair-a bright spot. A neighboring house has suffered a ghastly tragedy, and although the constable deems it an inadvertent decapitation, she can't believe anyone could be so careless as to accidentally lose his head. Determined to discover the truth, the new duchess pays her first social call. Because even if she can't find her way around her palatial home, she certainly knows her way around a murder.

Having solved the two murders that somehow fell in her path, Beatrice Hyde-Clare is on the lookout for a third. Through an absurd quirk of stupid fate, the shy spinster has fallen in love with the thoroughly unattainable Duke of Kesgrave and is desperate for something, anything, to occupy her mind. A dead body would do nicely.Fortunately for her, a fellow guest from a Lake District house party appears on her doorstep with exactly that: the lover of his fiancée's mother expired after a wretchedly painful episode just that morning in an apparent poisoning. As unorthodox as it is, he would like Bea to investigate rather than calling the authorities. Bea begins her inquiry into Mr. Wilson's death at once and almost immediately finds herself in the company of Kesgrave, who is as determined as ever to assist her. 'Twas patently unfair, for the whole point of the investigation was to get away from the handsome lord. Now Bea is faced with the daunting challenge of exposing the villain without revealing her heart.

Twenty-six-year-old Beatrice Hyde-Clare is far too shy to investigate the suspicious death of a fellow guest in the Lake District. A spinster who lives on the sufferance of her relatives, she would certainly not presume to search the rooms of her host's son and his friend looking for evidence. Reared in the twin virtues of deference and docility, she would absolutely never think to question the imperious Duke of Kesgrave about anything, let alone how he chose to represent the incident to the local constable. And yet when she stumbles upon the bludgeoned corpse of poor Mr. Otley in the deserted library of the Skeffingtons' country house, that's exactly what she does.

As much as Beatrice Hyde-Clare relished the challenge of figuring out who murdered a fellow guest during a house party in the Lake District, she certainly does not consider herself an amateur investigator. So when a London dandy falls dead at her feet in the entryway of a London Daily Gazette, she feels no compulsion to investigate. It was a newspaper office, after all, and reporters are already on the case as are the authorities. She has her own problems to deal with anyway-such as extricating herself from a seemingly harmless little fib that has somehow grown in into a ridiculously large fiction. Truly, she has no interest at all. Except the dagger that killed the poor earl seemed disconcertingly familiar...And so Bea is off to the British Museum because she cannot rest until she confirms her suspicion, while trying to allay her family's concerns and comprehend the Duke of Kesgrave's compulsion. For the handsome lord has no reason to waste his time solving a mystery alongside a shy spinster. And yet he turns up everywhere she goes.