England, 1813: Lady Arianna Hadley acts the part of a French chef in one of London's aristocratic households to find her father's murderer. But when the Prince Regent falls ill after consuming Arianna's special chocolate dessert, she finds herself at the center of a scandal. It soon becomes clear that someone is looking to plunge England into chaos-and Arianna to the bottom of the Thames...

A diabolical traitor who's always out of reach... England, 1814. Lady Arianna Hadley and her husband, the Earl of Saybrook, want nothing more than to savor a quiet life embellished by the occasional cup of the finest chocolate. However, when they receive orders to travel to Scotland and capture an elusive traitor, they feel their duty to the Crown must come first. In a laboratory in Scotland, they discover the corpse of a chemistry professor--and cryptic papers hinting at a dangerous new discovery now in enemy hands. Racing against time, Arianna and Saybrook pursue their most cunning and dangerous adversary yet through a complex network of intrigue involving exotic chocolates, daredevil aviators, a missing inventor, and a secret recipe that must be recovered at any cost... INCLUDES CHOCOLATE RECIPES AND TRIVIA! From the Paperback edition.

"Charlotte, now the Countess of Wrexford, would like nothing more than a summer of peace and quiet with her new husband ... But when Wrexford and their two young wards, Raven and Hawk, discover a body floating in Hyde Park's famous lake, that newfound peace looks to be at risk. The late Jeremiah Willis was the engineering genius behind a new design for a top-secret weapon, and the prototype is missing from the Royal Armory's laboratory. Wrexford is tasked with retrieving it before it falls into the wrong hands"--

The fourth in a brilliant historical mystery series for fans of Deanna Raybourn, Tasha Alexander, and Amanda Quick A wealthy lord, who also happens to be a brilliant scientist, and a young widow who secretly pens satirical political cartoons, must team up to solve a shocking murder in regency London. The murder of a shipping clerk . . . the strange disappearance of trusted friends . . . rumors of corruption within the powerful East India Company . . . all add up to a dark mystery entangling Lady Charlotte Sloane and the Earl of Wrexford in dangerous web of secrets and lies that will call into question how much they really know about the people they hold dear--and about each other . . . When Lady Cordelia, a brilliant mathematician, and her brother, Lord Woodbridge disappear from London, rumors swirl concerning fraudulent bank loans and a secret consortium engaged in an illicit--and highly profitable--trading scheme that threatens the entire British economy. The incriminating evidence mounts, but for Charlotte and Wrexford, it's a question of loyalty and friendship. And so they begin a new investigation to clear the siblings' names, uncover their whereabouts, and unravel the truth behind the whispers. As they delve into the murky world of banking and international arbitrage, Charlotte and Wrexford also struggle to navigate their increasingly complex feelings for each other. But the clock is ticking--a cunning mastermind has emerged . . . along with some unexpected allies--and Charlotte and Wrexford must race to prevent disasters both economic and personal as they are forced into a dangerous match of wits in an attempt to beat the enemy at his own game.

Lady Arianna's gift of a rare volume of botanical engravings to her husband, the Earl of Saybrook, has something even more rare hidden inside-sensitive government documents which would mark one they hold dear as a traitor of King and country. To unmask the villain, they must root out a cunning conspiracy-armed only with their wits and expertise in chocolate...

Presents the author's thesis that consciousness, in its manifestation in the human quality of understanding, is doing something that mere computation cannot; and attempts to understand how such non-computational action might arise within scientifically comprehensive physical laws.

A USA Today bestseller! “[Penrose] mixes well-thought out mysteries, early forensic science, great details of the era and a slow burning attraction creating a compulsive read.” —The New York Public Library A thrilling new mystery novel from the acclaimed author of Murder at Queen’s Landing, perfect for fans of Deanna Raybourn and Anne Perry! In the fifth installment of Andrea Penrose’s acclaimed, atmospheric mystery series, the upcoming marriage of the Earl of Wrexford and Lady Charlotte Sloane promises to be a highlight of the season, if they can first untangle—and survive—a web of intrigue and murder involving the most brilliant scientific minds in Regency London… One advantage of being caught up in a whirl of dress fittings and decisions about flower arrangements and breakfast menus is that Charlotte Sloane has little time for any pre-wedding qualms. Her love for Wrexford isn’t in question. But will being a wife—and a Countess—make it difficult for her to maintain her independence—not to mention, her secret identity as famed satirical artist A.J. Quill? Despite those concerns, there are soon even more urgent matters to attend to during Charlotte and Wrexford’s first public outing as an engaged couple. At a symposium at the Royal Botanic Gardens, a visiting botanist suffers a fatal collapse. The traces of white powder near his mouth reveal the dark truth—he was murdered. Drawn into the investigation, Charlotte and the Earl learn of the victim’s involvement in a momentous medical discovery. With fame and immense fortune at stake, there’s no shortage of suspects, including some whose ruthlessness is already known. But neither Charlotte nor her husband-to-be can realize how close the danger is about to get—or to what lengths this villain is prepared to go . . .