Matthew Bartholomew, unorthodox but effective physician to Michaelhouse college in medieval Cambridge, is as worried as anyone about the pestilence that is ravaging Europe and seems to be approaching England. But he is distracted by the sudden and inexplicable death of the Master of Michaelhouse - a death the University authorities do not want investigated.

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.

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.

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.

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.

These volumes are the complete Martin Hewitt stories, taking Arthur Morrison's original publications and presenting them as Sherlock Holmes adventures. If you are a fan of Holmes, enjoy! And by all means, seek out the original Hewitt stories and enjoy them as well.

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.

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.

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.

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.

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.

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.

In the year 1903 - the exact moment is now lost to history - Sherlock Holmes proclaimed to the world he was quitting England's Capital to go into retirement on a small, wind-swept farm in the Sussex South Downs. His shocked comrade-in-arms Dr. John H. Watson was later to write, "The decision took me utterly by surprise. I thought I had become an institution around Holmes, like his Stradivarius, or the old, oily black clay pipe and his index books."

Sherlock Holmes thrives on danger. Sudden knife attacks, being stalked, and facing a network of assassins present little more than a cheery break in the monotony. But the enigmatic Lady Beatrice presents danger of a different kind. Is she a murderer or a potential victim? Or something even more perilous? Uncovering her secrets could change Holmes's life forever, and in ways even he cannot anticipate.