Bing found the following results
The Valley of Fear - Wikipedia
The Valley of Fear Summary | GradeSaver
The Valley of Fear (Sherlock Holmes, #7) - Goodreads
THE VALLEY OF FEAR - Project Gutenberg
The Valley of Fear by Arthur Conan Doyle | Project Gutenberg
The Valley of Fear - Wikisource, the free online library
The Valley of Fear, by Arthur Conan Doyle - Project Gutenberg
The Valley of Fear - Wikiwand
The Valley of Fear - Arthur Conan Doyle - Google Books
The Valley of Fear - Sir Arthur Conan Doyle - Google Books