How does the story end??

One day, Watson questions Holmes about the case, and the detective provides all the missing pieces. Stapleton's actual name was Rodger Baskerville; he is the son of Sir Charles's youngest brother, who had long before moved to South America. After his father's death, Stapleton fled to England, changed his identity, and set out to construct a means to claim the Baskerville fortune. His wife had eventually tried to stop him, which is why he locked her away.

The details provided, Holmes invites Watson to join him for dinner and a show.