Séamas Duffy’s fourth novel, Sherlock Holmes and the Sixty Steps, follows a similar format to his previously published Holmes collections: a novella together with some shorter stories. The four stories are: “The Tragedy of Langhorne Wyke” (1890); “The Mystery of the Thirteen Bells” (1895); “The Adventure of the Sixty Steps” (1897); and “The Problem of the Coptic Patriarchs” (1898).

Holmes being away for the day, Watson receives an anonymous request for a meeting at Waterloo station. More for interest's sake than any other reason, he attends the railway station and is confronted by a man whom appears in the last vestiges of physical and mental stress. According to Brinton he has but little time before both his imminent death, and worse, his immortal soul will be cast forever into eternal damnation.

“From now on, I am going to be Sherlock Holmes, the World’s Greatest Cat Detective.” With those words, my friend Spot decided he would become a crime-solving kitty. “And you, of course,” he said dramatically, “will be my faithful friend, Dr. John Watson. The one who writes down all of my adventures and shares them with the world! We’ll be famous! Everyone will know the name ‘Sherlock Holmes, the World’s Greatest Cat Detective’!” I wasn’t too worried. I was sure that, by morning, Spot would have forgotten all about becoming Sherlock Holmes. Boy, was I wrong.

As young men go to the trenches in their millions, they take with them A. E. Housman’s collection of poetry, A Shropshire Lad. “Easy to read in the most difficult circumstances and full of happy memories of home,” opines Mycroft Holmes. But has Housman succumbed to German influence? Sherlock Holmes and Dr. Watson are sent to investigate and come up with a finding unexpected to them. Mycroft lets their finding pass, but Watson is then witness to some Machiavellian political machinations from Mycroft as he deals with Irish rebel Roger Casement.

When Mrs. Hudson asks Holmes and Watson to find a missing girl, neither men expected what they would find. Along with Lestrade, they are plunged into a case of abduction and murder. As they race from Marylebone, to Finchley, to Wapping, and back again, time is running out for them to solve the case without further casualties. With two of their own under threat, the pressure is mounting to catch and stop the group known as "Hellfire Heirs".

Watson spends half his wound pension on the turf and his gambling addiction renders him unable even to pay his half share of the rent of the rooms at Baker Street. But when one of his rare bursts of prosperity enables him to buy two strikingly good pictures from a pawnbroker, Mycroft Holmes takes a remarkable interest. And what is the meaning of the little rhyme that runs round the canvas of the painting.

More tales from the dispatch box of Doctor John Watson. These 10 stories have appeared previously in various volumes of The MX Book of New Sherlock Holmes Stories and other anthologies. They come together as a collection for the first time.

Sherlock Holmes and Doctor Watson are summoned to Theobald Grange, the Warwickshire home of Lady Heminworth. Being of a nervous and superstitious disposition, her Ladyship lives in fear. Her husband and elder son were recently murdered, apparently by the ghost of a court jester who was executed on the site centuries before. The apparition has warned that she, too, is to die. Holmes rejects a supernatural explanation, although his adversary seems unaffected by gunfire and is able to take flight and disappear.

An unidentified woman is found dead with a set of false teeth mysteriously gripped in her hand. A young tutor finds himself accused of a bizarre art theft. A Russian refugee in hiding is helped by Watson’s wife Mary, and now Mary has disappeared.

In The Adventure of the Jeweled Falcon, Holmes tracks down an ancient priceless statue, but others are looking for it too. In The Case of the Violin Savant, using clues found in the sophisticated musical compositions of a celebrated but mute nine-year-old violin savant, Holmes and Watson attempt to discover where and why the boy and his parents vanished. In The Adventure of Stonehenge in London, Holmes and Watson stumble upon a strange structure on the roof of a mansion in London, and somehow it relates to the missing eighth Earl of Rendlesham.

December 1899. After the death of her beloved grandmother, Cleopatra Fox moves into the luxury hotel owned by her estranged uncle in the hopes of putting hardship and loneliness behind her. But the poisoning of a guest on Christmas eve throws her new life, and the hotel, into chaos. Cleo quickly realizes no one can be trusted, not Scotland Yard and especially not the hotel’s charming assistant manager.

In the 1980s and 1990s, the late Terry Golledge wrote 10 Holmes masterful pastiches that perfectly captured Dr. Watson's voice, as well as Holmes’ personality and methods. Mr. Golledge passed away in 1996, before these stories could be published. In early 2022, Terry’s son, Niel Golledge, reached out to Sherlockian editor David Marcum, who was electrified to read such wonderful previously lost tales about the heroes of Baker Street.

In December 1926, Agatha Christie goes missing. Investigators find her empty car on the edge of a deep, gloomy pond, the only clues some tire tracks nearby and a fur coat left in the car - strange for a frigid night. Her World War I veteran husband and her daughter have no knowledge of her whereabouts, and England unleashes an unprecedented manhunt to find the up-and-coming mystery author. Eleven days later, she reappears, just as mysteriously as she disappeared, claiming amnesia and providing no explanations for her time away.

Two people have been targeted. Shots have been fired. Who stands to inherit? Who has the most to lose? Evangeline "Evie" Parker, Countess of Woodridge, thinks it's nothing but an accident, but then an attempt is made on her host's life. Suddenly, all the guests attending the Duke of Hetherington's house party think they are being targeted. Who will be next? Evie and her new chauffeur form an unlikely alliance to discover as much as they can before the killer can get it right.

Charles Lenox, Victorian gentleman and armchair explorer, likes nothing more than to relax in his private study with a cup of tea, a roaring fire and a good book. But when his lifelong friend Lady Jane asks for his help, Lenox cannot resist the chance to unravel a mystery. Prudence Smith, one of Jane's former servants, is dead of an apparent suicide. But Lenox suspects something far more sinister: murder, by a rare and deadly poison.