Holmes & Watson receive a letter from an informant who known by the pseudonym Fred Porlock. Porlock is a man well connected with criminals. The letter is written in code, and Holmes determines that the code comes from the words in a book. They decipher the code by page and column and find that John Douglas of Birlstone House is in danger.
Written By
Arthur Conan Doyle, Norma GreenWatch on these services
Cast of Sherlock Holmes and the Valley of Fear
Peter O'TooleSherlock Holmes (voice)
Earle CrossWatson (voice)