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".

This is the fourth story from The Art of Sherlock Holmes project and first appeared in The MX Book of New Sherlock Holmes Stories, Part V.

In the year 1908, Holmes believed himself to be in retirement. Watson was once again in private practice and unwed. Mrs. Hudson had gone to Sussex to act as Holmes's housekeeper. But the fates had agreed that Martha Hudson and John Watson should be together. Or had they? When Dr. Watson proposes to Martha Hudson, it sets off a series of events that only Sherlock Holmes can deal with. Watson has already had three wives—all have died under unfortunate circumstances. Colm Campbell, Martha Hudson's nephew, thinks there is more here than meets the eye.

In real life, 221B Baker Street is the home of a bank. When fans send letters to Sherlock Holmes, bank employee Addy Zhuang, known as "Sherlock's Secretary," replies. One day, the bank is robbed, but the thieves only take three letters addressed to Sherlock Holmes. The police conclude it was all a harmless prank, but Addy suspects something more malicious is happening.

On concluding a long day of house calls, Dr. Watson receives an urgent summons to attend his friend, Sherlock Holmes. He arrives at 221B Baker Street to find Holmes in a state of deep shock and wearing scorched clothing that reeks of excrement.

When misadventure led a schoolboy in London to employment at Baker Street, few could have guessed where his introduction to Sherlock Holmes would lead. But as the lad matures and he finds himself caught in the middle of a murder investigation, his friendship with Holmes and Watson lures him into the role of detective. 'Billy' documents his experiences, and soon his sleuthing skills not only bring him to another murder, but also lay the foundation for his metamorphosis into a famous mystery writer.

On the eve of Newgate Prison's demolition, Watson spies Holmes leaving a public sale of the prison's miscellany in the company of a beautiful stranger, and in possession of an unusual trophy–the death mask of a woman who, more than 20 years earlier, had been executed for the murder of her three children. Holmes agrees to satisfy Watson's curiosity about the memento by recounting the decades-old history of its subject.

From some clear pieces of glass and a raven's feather, the great detective must divine exactly who the client was and what prompted him to seek assistance at 221B. Fortunately, Holmes has a number of experts upon whom he can rely as well as his own vast store of esoteric knowledge. Treading a twisted path, Holmes soon finds himself matching wits with an unseen criminal, who appears to be the equal of the late Professor Moriarty. At the same time, he is tasked with sparing the monarchy any possible embarrassment that may stem from the investigation.

The apparition of a lady dressed in white and long thought dead, a deadly and shadowy form that wreaks terror on the heath, and a figure from the past who has accrued the power to commune with the dead! Here is collection of cases, some new, together with a few old favorites which sorely test Holmes' long-held beliefs to their very limits!

Where Sherlock Holmes tends to go, then surely a crime must be detected. What begins as a chance encounter of a seemingly simple mystery at an Edinburgh home soon takes Holmes and Watson into conflict with the Edinburgh Police, an investigation involving murder and corruption, and crossing paths with the local populace including Dr. Joseph Bell.

It's 1906. Far from England, the Ottoman Empire ruled by the despotic Sultan Abd-ul-Hamid 11 is on the verge of imploding. Rival Great Powers, especially Kaiser Wilhelm's Germany, sit watching like crows on a fence, ready to rush in to carve up the vast territories, menacing England's vital overland routes to her Indian possessions. At his medical practice in London's Marylebone, Watson receives a mystifying telegram. It's from Holmes.

For all we know, or think we know, about Sherlock Holmes and Doctor Watson, what we don’t know is far, far greater. In the duo’s first case, A Study in Scarlet, we learn that Holmes and Watson met on January 1st, 1881, and subsequently moved into an apartment together at 221b Baker Street. Their first case officially began on March 4th of that year, and it is argued that “The Adventure of the Resident Patient” possibly took place in October of 1881, depending on which version of the story you read. But what happened during the rest of 1881? Or all of 1882?

Enough time has passed. Dr. John Watson can finally reopen his tin box of chronicles. In this astonishing collection, a treasure trove of new accounts of Sherlock Holmes’s extraordinary skills finally comes to light. What is the connection between murderous attacks on a colonel’s wife and the legend of King Arthur? Why is a disgraced former ship captain stalking his neighbor? Who stole the statue of The Dying Gaul from a completely secure museum in Rome? Find the answers to these confounding mysteries and more in seven exhilarating new short stories.

Sherlock Holmes' adventures continue in seven surprising cases. Holmes and Watson investigate an alleged haunting at the Diogenes Club, vandalism at a prominent art gallery, the case of a frightened amnesiac, the takeover of 221B by vicious criminals, the sequel to "The Engineer's Thumb," the defiling of Holmes' Stradivarius violin, and a Christmas story featuring a graveyard with angry insults carved into the headstones. The game is afoot!

Propelled into society by his ever-hopeful father, Frank is introduced to a variety of professions in order to make his fortune. Not industrious by nature, however, Frank finds working life a challenge, and by his 25th birthday, he has failed medicine, portrait-painting, caricaturing, and even forgery. Disenchanted with life, he despairs of ever finding something to commit to — until he meets Alicia Dulcifer and her inexplicably wealthy father.