The Hound of the Baskervilles, Chapter-3

Sir Henry meets Sherlock Holmes and Dr Watson and shows a mysterious warning note made of cut newspaper words. Holmes deduces that Sir Henry is being secretly followed by someone in London. A cab driver confirms that a mysterious man hired him to track Sir Henry. The suspect escapes, but Holmes notes important clues. Sir Henry also reports that one of his new boots has mysteriously disappeared, which adds to the mystery. Holmes advises Watson to accompany Sir Henry to Baskerville Hall for protection and to report all facts without making conclusions.