Person followed Dr. Mortimer and Sir Henry from Sherlock Holmes house to the hotel.
Holmes found the cabman, named John Clyke, and spoke to him
The person in the taxi had a big black beard, about 40 years old and middle height (mr. Barrymore also has a black beard)
John Clyke said the man was watching and following 2 people
John Clyke said the man’s name was Sherlock Holmes.
The man was dropped at Waterloo Station
holmes sent a telegram to Mr. Barrymore to ensure he was at Baskerville Hall
His wife sent back the Telegram, so it isn’t sure that Mr. Barrymore was at the hall
My thoughts:
The person in the cab is trying to make it seem as if it actually was Mr. barrymore.