Murder By Decree (1979)

Novelization of the 1979 film starring Christopher Plummer as Sherlock Holmes and James Mason as Dr. Watson. A good Holmes vs. Jack The Ripper tale incorporating a popular Royal conspiracy theory of the day. 

THE MOST INFAMOUS MURDERER IN THE ENTIRE CENTURY––

He terrorized a city.

He committed acts of unspeakable horror.

He ruled the shadows and the back alley.

He was called Jack the Ripper––

THE MOST ILLUSTRIOUS INVESTIGATOR OF ALL TIME––

He commanded boundless admiration.

He possessed ruthless intelligence.

He pursued his suspects with unfailing instincts.

He was Sherlock Holmes.

Title: Murder By Decree

Author: Robert Weverka

Year: 1979

Publisher: Ballantine Books

Purchase: Amazon | Amazon.co.uk

The Adventure of the Stalwart Companions (1978)

Holmes joins forces with future U.S. president Theodore Roosevelt in a New York set adventure. Bully! This is the first U.S. hardcover edition.

NO MAN IS ABOVE THE LAW 

In this story, written by future President Theodore Roosevelt long before The Great Detective’s first encounter with Dr Watson, Holmes visits America to solve a most violent and despicable crime. A crime that was to prove the most taxing of his brilliant career... 

Recently discovered in the basement of the New York Police Department, The Stalwart Companions is one of Holmes’ most exciting and unusual chronicles.

Title: The Adventure of the Stalwart Companions
Author: H. Paul Jeffers
Year: 1978
Publisher: Harper & Row
Purchase: Amazon.

Sherlock Holmes and the Drood Mystery (1973)

A rare Holmes and Edwin Drood crossover pastiche. This appears to have been a Baker Street Irregulars publication limited to 400 copies.

Title: Sherlock Holmes and the Drood Mystery
Author: Edmund L. Pearson
Year: 1973
Publisher: The Aspen Press
Purchase: eBay

The Canary Trainer (1995)

Nicholas Meyer's third original Sherlock Holmes novel finds the great detective at the Paris Opera House, tangling with a familiar Phantom. This is the paperback edition released in 1995.

Located by a computer in the bowels of a major university, this missing manuscript by Dr. John Watson, the biographer of Sherlock Holmes, reveals for the first time a hitherto unknown episode in the life of the Great Detective.

The year is 1891, Paris is the capital of the western world, and its opera house is full of surprises. First and by no means least is the sudden reappearance of the great love of Holmes's life, an accomplished singer from Hoboken, New Jersey. Second is the series of seemingly bizarre accidents―each more sinister than the last―allegedly arranged by the "Opera Ghost," an opponent who goes by many names and is more than equal to Holmes. Alone in a strange and spectacular city, with none of his normal resources, Holmes is commissioned to protect a vulnerable young soprano, whose beautiful voice obsesses a creature no one believes is real, but whose jealousy is lethal.

In this dazzling sequel to The Seven-Per-Cent Solution, the detective pits wits against a musical maniac, and we are treated to an adventure unlike any other in the archives of Sherlock Holmes.

Title: The Canary Trainer
Author: Nicholas Meyer
Year: 1995
Publisher: W. W. Norton & Company
Purchase: Amazon.com | Amazon.co.uk

Sherlock Holmes in Modern Times (1980)

An anthology of short Sherlock Holmes stories set in the modern day, in this case, the 1980s. Dworkin published a second collection in 1994 called Sherlock Takes a Wife and Other Modern Tales.

Sherlock Holmes in Modern Times: An Anthology of Original Short Stories presents a contemporary twist on the classic detective tales, featuring the iconic Sherlock Holmes navigating the challenges of the modern world. In this collection, readers are treated to a diverse range of original short stories that showcase Holmes' unparalleled deductive skills in solving intriguing mysteries set in present-day settings. With a blend of traditional detective work and modern-day technology, Sherlock Holmes in Modern Times offers a compelling fusion of past and present in the world of crime-solving.

Title: Sherlock Holmes in Modern Times
Author: Ira Bernard Dworkin
Year: 1980
Publisher: William-Frederick Press
Purchase: Amazon.com | Amazon.co.uk

The Haunting of Torre Abbey (2000)

A haunting Holmes pastiche by Carole Buggé.

"Watson, do you believe in ghosts?"

With this question, Sherlock Holmes shatters the calm of a quiet evening in their London flat and, with Dr. John Watson at his side, embarks upon a particularly strange case. Holmes has received a request for aid from Lord Charles Cary, whose family is seemingly being threatened by ghosts in and around the family manor. The manor is Torre Abbey, a twelfth-century monastery in Torquay, Devon, and it has a long history of hauntings. While skeptical of the supernatural, Holmes does believe that the Cary family is in danger-a belief which proves to be horrifyingly accurate when, shortly after they arrive at Torre Abbey, a household member dies suddenly, mysteriously, and seemingly of fright. As strange sightings and threatening apparitions become almost commonplace, Holmes must uncover the secrets of the haunted abbey and the family that lives there if he is to have any hope of protecting the living and avenging the dead. In a case that taxes his wits, and seems beyond the reach of his usual methods, Holmes must grapple with his most deadly and unforgiving foe.

Title: The Haunting of Torre Abbey
Author: Carole Buggé
Year: 2000
Publisher: Minotaur Books
Purchase: Amazon.com

The Star of India (1998)

A Holmes pastiche by Carole Buggé. Nice cover art on this first hardcover edition.

Dealing with a threat to one dear friend, the death of another, and a series of puzzling messages, Holmes reaches the only logical conclusion: he once again must face his archnemisis Professor Moriarty, a villain whom he had long believed to be dead.

Title: The Star of India
Author: Carole Buggé
Year: 1998
Publisher: St. Martin's Press
Purchase: Amazon.com

The Sign of Seven (2019)

A new collection of Holmes stories edited by Martin Rosenstock.

Eliminate the impossible...

Sherlock Holmes lives on in this extraordinary collection of brand-new novellas. Marvel as the master detective scours London's sewers to expose the killer of a mudlark; attends a deadly séance that may prove a man's guilt; visits a dark carnival with an unusual menu; solves the murder of an Egyptologist's butler; uncovers the shocking secret of a tobacco dealer; sets sail for America to investigate the death of a cult leader and settles an old score for his famous associate Inspector Lestrade!

SEVEN SHERLOCK HOLMES ADVENTURES FROM: Stuart Douglas, James Lovegrove, Derrick Belanger, Andrew Lane, David Stuart Davies, Amy Thomas and Lyndsay Faye.

Title: The Sign of Seven
Editor: Martin Rosenstock
Year: 2019
Publisher: Titan Books
Purchase: Amazon.com | Amazon.co.uk

The Strange Case of the End of Civilisation As We Know It (1977)

Novelization of the 1977 film, which I find pretty hilarious.

The grandson of the world's first and foremost consulting detective and his bumbling, bionic sidekick attempt to catch the only living descendant of Professor Moriarty.

Title: The Strange Case of the End of Civilisation As We Know It
Author: John Cleese, Jock Hobbs, Joe McGrath
Year: 1977
Publisher: Star
Purchase: Amazon.com | Amazon.co.uk