It is the spring of 1895, and more than a decade of combating eldritch entities has cost Dr. John Watson his beloved wife Mary, and has nearly broken the health of Sherlock Holmes. Yet the companions do not hesitate when they are called to the infamous Bedlam lunatic asylum, where they find an inmate speaking in R’lyehian, the language of the Old Ones. Moreover, the man is horribly scarred and has no memory of who he is. The detectives discover that he was once a scientist, a student of Miskatonic University, and one of two survivors of a doomed voyage down the Miskatonic River.

It is 1890, and in the days before Christmas, Sherlock Holmes and Dr. John Watson are visited at Baker Street by a new client. Eve Allerthorpe, eldest daughter of a grand but somewhat eccentric Yorkshire-based dynasty, is greatly distressed, as she believes she is being haunted by a demonic Christmas spirit. Her late mother told her terrifying tales of the sinister Black Thurrick, and Eve is sure that she has seen the creature from her bedroom window. What is more, she has begun to receive mysterious parcels of birch twigs, the Black Thurrick’s calling card.

Three linked crimes test Sherlock Holmes’ deductive powers, and his skepticism about the supernatural, to the limit.  

It is the autumn of 1880, and Dr. John Watson has just returned from Afghanistan. Badly injured and desperate to forget a nightmarish expedition that left him doubting his sanity, Watson is close to destitution when he meets the extraordinary Sherlock Holmes, who is investigating a series of deaths in the Shadwell district of London. Several bodies have been found, the victims appearing to have starved to death over the course of several weeks, and yet they were reported alive and well mere days before.

The year 1894. The monstrous Hound of the Baskervilles has been dead for five years, along with its no less monstrous owner, the naturalist Jack Stapleton. Sir Henry Baskerville is living contentedly at Baskerville Hall with his new wife, Audrey, and their three-year-old son, Harry. Until, that is, Audrey’s lifeless body is found on the moors, drained of blood. It would appear some fiendish creature is once more at large on Dartmoor and has, like its predecessor, targeted the unfortunate Baskerville family. 

Amelia Scarcliffe’s monstrous brood, harbingers of Cthulhu, will soon spawn. Her songs spell insanity, death...and illimitable wealth. And Moriarty will do anything to get his hands on gold, even if it means tearing down the walls between this world and a realm of horrors. Meanwhile, after Sherlock Holmes’s last tangle with the Order of Dagon, horrifying monsters haunt the Thames, and madness stalks the streets of Whitechapel. Gang war between Moriarty’s thugs and the powerful cult can only bring more terror - unless Holmes and Dr. Watson can prevent it.

The deadly dimensions over London have been sealed, and the monsters have departed. But word has come to Sherlock Holmes and Dr. Watson of a more terrifying creature still - the great Cthulhu has been sighted off the waters of Innsmouth, Massachusetts. Only Holmes can defeat him. And in the muddy village of Innsmouth, surrounded by villagers who are more sea-monster than human, Holmes meets again his nemesis, Moriarty, and yet greater foes: Amelia Scarcliffe and Maria Fitzgerald, harbingers of Dagon, who have called forth Cthulhu. 

January 1905: Holmes and Watson are summoned by Holmes' brother Mycroft to undertake a clandestine investigation. An agent of the British Secret Service has been found floating in the Thames, carrying a manuscript smuggled into England at the cost of her life. The pages purport to be the minutes of a meeting of a secret group intent on nothing less than taking over the world: the Protocols of the Elders of Zion.  

It’s 1890, and the newly famous Sherlock Holmes faces his worst adversary to date - a diabolical villain bent on destroying some of London’s most admired public figures in particularly gruesome ways. A further puzzle is that suicide closely attends each of the murders. As he tracks the killer through vast and seething London, Holmes finds himself battling both an envious Scotland Yard and a critical press as he follows a complex trail from performers to princes, anarchists to aesthetes.

A letter, written in a secret cipher he recognizes all too well, reveals that an old foe of Holmes - a murderer he once captured after an incredible duel of wits - is back, has kidnapped his previous victim’s widow, and is now impersonating Holmes himself. Holmes must once again match wits with a particularly cunning adversary, one whose hatred of Holmes has seemingly become the killer’s single greatest obsession. 

Three seemingly separate crimes, three detectives. A mysterious stalker is on the loose in London known only as the Goblin Man and his sights are set on a wealthy businessman, David Daniels. A horrific explosion rips through Whitechapel Underground Station and the prime suspect is a Jewish anarchist. And a Mrs. Clara Edwards is searching for her missing lover, Philias Jackson. What connects these three?

Six new tales of crime presented by Dr Watson from the documents of Sherlock Holmes, which follow on from The Secret Cases of Sherlock Holmes. What were Holmes's views on Dr Crippen? What happened when Oscar Wilde visited Baker Street to seek advice? How did Holmes reveal a loving husband to be one of the most dangerous psychopaths of modern times? And just what horrors await Holmes in the darkened slums of Waterloo Road?

Deciphering an ancient alchemy book is more difficult than Zoe Faust bargained for. She'd much rather be gardening and exploring her new hometown of Portland, Oregon - but time is running out for living gargoyle Dorian Robert-Houdin. If Zoe isn't able to unlock an unusual alchemy book's secrets soon, the French gargoyle will remain awake but trapped in stone forever.

Dark Adventure Radio Theatre: Masks of Nyarlathotep is an epic tale of globe-trotting adventure inspired by the works of H.P. Lovecraft, presented as a 1930s-style radio drama. Dark Adventure Radio Theatre presents the tale with an absurdly large cast of professional actors, exciting sound effects and thrilling original music by Troy Sterling Nies. Now, in partnership with Chaosium, we've adapted their most famed and beloved game supplement of all time - Masks of Nyarlathotep - into a fully dramatized super episode of Dark Adventure Radio Theatre.

Imagine the twisted evil twins of Sherlock Holmes and Doctor Watson and you have the dangerous duo of Professor James Moriarty - wily, snake-like, fiercely intelligent, terrifyingly unpredictable - and Colonel Sebastian Basher Moran - violent, politically incorrect, debauched. Together they run London crime, owning police and criminals alike. When a certain Irene Adler turns up on their doorstep with a proposition, neither man is able to resist.