The Question and Answer section for The Hound of the Baskervilles is a great resource to ask questions, find answers, and discuss the novel.
The paw prints indicate the presence of a gigantic hound.
“Mr. Holmes, they were the footprints of a gigantic hound!”
Holmes does not return to London. He pretended to be in London, so the suspects would not be on guard while Watson and Sir Henry investigated. He needed to gather information that would not have been easy to get had he made his presence known,...