Sherlock Holmes investigates the murder of two Americans whose deaths have some mysterious connection to sinister socialist groups gathering power in both Britain and America.

A Scandal in Bohemia -- The Red-headed league -- A case of identify -- The Boscombe Valley mystery -- The Five orange pips -- The Man with the twisted lip -- The Adventure of the blue carbuncle -- The Adventure of the speckled bnad -- The Adventure of the engineer's thumb -- The Adventure of the noble bachelor -- The Adventure of the beryl coronet -- The Adventure of the copper beeches.

Features the phantom dog of Dartmoor, which, according to an ancient legend, has haunted the Baskervilles for generations. When Sir Charles Baskerville dies suddenly of a heart attack on the grounds of the family’s estate, the locals are convinced that the spectral hound is responsible, and Holmes is called in.

Arthur Conan Doyle's The Valley of Fear (1915) is the fourth and final installment of the Sherlock Holmes crime novels. This work of riveting suspense and intrigue is loosely based on the infamous 18th Century Irish secret society, The Molly Maguires. First published in serial form in The Strand Magazine in 1914 and 1915, this novel brings Sherlock Holmes face-to-face with the evil Professor Moriarty, one of the most nefarious characters of crime...