DOYLE'S COMPLETE FICTIONAL WORKS

Sherlock Holmes Novels  /  The Adventures of Sherlock Holmes  /  The Memoirs of Sherlock Holmes
The Return of Sherlock Holmes  /  His Last Bow  /  The Casebook of Sherlock Holmes
A Study in Scarlet

First appeared in Beeton's Christmas Annual (December 1887)


A Study in Scarlet pdf 
The Sign of Four

 First appeared in the Lippincott's Magazine (February 1890)


The Sign of Four pdf 
The Hound of the Baskervilles

First appeared in The Strand Magazine (August 1901-April 1902)


The Hound of the Baskervilles pdf 


Original Strand Format pdf
The Valley of Fear

First appeared in The Strand Magazine (September 1914-May 1915)


The Valley of Fear pdf 


Original Strand Format pdf
Sherlock Holmes Novels  /  The Adventures of Sherlock Holmes  /  The Memoirs of Sherlock Holmes
The Return of Sherlock Holmes  /  His Last Bow  /  The Casebook of Sherlock Holmes