Just days before a massive exhibition opens at the popular New York Museum of Natural History, visitors are being savagely murdered in the museum's dark hallways and secret rooms. Autopsies indicate that the killer cannot be human.... But the museum's directors plan to go ahead with a big bash to celebrate the new exhibition, in spite of the murders.

There’s a literary niche for all tastes including those who think that either Agatha Christie wasn’t funny enough or that PG Wodehouse didn’t feature anywhere near as many baffling murders as he could have. The Case of the Canterfell Codicil is a classic, cozy, locked-room mystery written in the style of an homage to PG Wodehouse.

Spring, 1918. The Great War is at a crucial stage, the Germans are making one last push into France, and the Allies are struggling to hold them back. Battle lines are shifting, and men, and their machines, are being sent up and down the front to shore up defenses. Major Heathcliff Lennox, and his batman Greggs, are told to report to their new HQ. They set off on a sunlit day to fly the distance, but the enemy is never far away, and disaster strikes. They're sent crashing to the ground behind enemy lines, where life, death, and love await.

After receiving a frantic letter from her newly-wed cousin begging for someone to save her from a mysterious doom, Noemí Taboada heads to High Place, a distant house in the Mexican countryside. She’s not sure what she will find—her cousin’s husband, a handsome Englishman, is a stranger, and Noemí knows little about the region.

Mrs. Laetitia Rodd, aged 52, is the widow of an archdeacon who makes her living as a highly discreet private investigator. Her brother, Frederick Tyson, is a criminal barrister living in nearby Highgate with his wife and 10 children. Frederick finds the cases, and Laetitia solves them using her arch intelligence and her immaculate cover as an unsuspecting widow. When a case arises involving the son of the highly connected Sir James Calderstone, Laetitia sets off for Lincolnshire undercover as the family's new governess.

London, 1878. One April morning, a small boat bearing a young woman’s corpse floats down the murky waters of the Thames. When the victim is identified as Rose Albert, daughter of a prominent judge, the Scotland Yard director gives the case to Michael Corravan, one of the only senior inspectors remaining after a corruption scandal the previous autumn left the division in ruins. Reluctantly, Corravan abandons his ongoing case, a search for the missing wife of a shipping magnate, handing it over to his young colleague, Mr. Stiles.

Cornwall, 1730: A young girl known only as Red travels with her father making a living predicting fortunes using the ancient Cornish method of the Square of Sevens. Shortly before he dies, her father entrusts Red’s care to a gentleman scholar, along with a document containing the secret of the Square of Sevens technique.

Let the wicked be ashamed, and let them be silent in the grave. These ominous words, slashed from the pages of a book of Psalms, are the last threat that the darling of London society, Sir Edward Grey, receives from his killer. Before he can show them to Nicholas Brisbane, the private inquiry agent he has retained for his protection, Sir Edward collapses and dies at his London home, in the presence of his wife, Julia, and a roomful of dinner guests.

London, June 1860: When an assassination attempt is made on Queen Victoria, and a petty thief is gruesomely murdered moments later - and only a block away - Chief Detective Inspector Charles Field quickly surmises that these crimes are connected to an even more sinister plot. Was Victoria really the assassin's target? Are those closest to the Crown hiding something? Soon, Field's investigation exposes a shocking conspiracy in which the publication of Charles Darwin's On the Origin of Species sets off a string of murders, arson, kidnapping, and the pursuit of a diabolical madman.

India Steele is desperate. Her father is dead, her fiancé took her inheritance, and no one will employ her, despite years working for her watchmaker father. Indeed, the other London watchmakers seem frightened of her. Alone, poor, and at the end of her tether, India takes employment with the only person who’ll accept her–an enigmatic and mysterious man from America. A man who possesses a strange watch that rejuvenates him when he’s ill.

Tabby has a peculiar gift: She can communicate with the recently departed. It makes her special, but it also makes her dangerous. As an orphaned child, she fled with her sister, Alice, from their charlatan aunt Bellefonte, who wanted only to exploit Tabby's gift so she could profit from the recent craze for seances. Now a young woman and tragically separated from Alice, Tabby works with her adopted father, Eli, the kind caretaker of a large Boston cemetery.

In 1892, Bombay is the center of British India. Nearby, Captain Jim Agnihotri lays in Poona military hospital recovering from a skirmish on the wild Northern frontier, with little to read but newspapers. The case that catches Jim's attention is being called the crime of the century: Two women fell from the busy university’s clock tower in broad daylight. Moved by the widower of one of the victims - his certainty that his wife and sister did not commit suicide - Jim approaches the Framjis and is hired by the Parsee family to investigate what happened that terrible afternoon.

London, 1880. When accounts clerk Ernest Stibbins approaches the World's End investigation bureau with wild claims that his wife Albertina has been warned by her spirit guides that someone is out to harm her, the bureau's owner Lily Raynor and her new employee Felix Wilbraham are sceptical. How are the two private enquiry agents supposed to investigate threats from beyond the grave? But after she attends a seance at the Stibbins family home, Lily comes to realize that Albertina is in terrible danger. And soon, so is Lily herself....

Singapore, 1910 - Desperate for a fresh start, Harriet Gordon finds herself living with her brother, a reverend and headmaster of a school for boys, in Singapore at the height of colonial rule. Hoping to gain some financial independence, she advertises her services as a personal secretary. It is unfortunate that she should discover her first client, Sir Oswald Newbold - explorer, mine magnate, and president of the exclusive Explorers and Geographers Club - dead with a knife in his throat.

From humble beginnings in Ireland, William Melville has risen through hard work, intelligence, and occasional brute force to become head of Scotland Yard’s Special Branch, personal bodyguard to Queen Victoria and her family, and the scourge of anarchists at home and abroad. But when the aged Queen dies in January 1901 and the crowned heads of Europe converge on London for her funeral, Melville learns of a conspiracy, led by a mysterious nihilist known only as Akushku, to assassinate Kaiser Wilhelm of Germany at the ceremony.