Holmes and Watson spend time looking at an art exhibit and then they go to Sir Charles's hotel. Holmes cleverly gets the hotel registrar to talk about two guests so that he can eliminate them as persons who may have been following Sir Henry.

The three men meet in Sir Henry's hotel rooms. Sir Henry is upset because yet another boot is missing. Someone has taken one brown and now one black boot. After lunch Sir Henry repeats his intention of going to Baskerville Hall. Holmes reports that he is being followed. Since the servant Barrymore has a full beard, Holmes decides to telegraph him and demand an instant reply so that he can determine if Barrymore is at Baskerville Hall or following Sir Henry in London.

Holmes next finds out that Sir Henry is due to inherit close to a million pounds...