Answer:
Thaddeus Sholto is an eccentric, complex, fearful, and rather unpleasant person whose actions set the story in motion. Initially, he is guilty of conspiring to keep a fortune away from its rightful heir, Miss Morstan—a young woman who must struggle to make a living. Yet his conscience bothers him enough to secretly and anonymously send her a kind of guilt-payment each year—a package containing a valuable pearl. He finally sends a mysterious summons to Miss Morstan, which prompts her to seek Sherlock Holmes's advice.
Explanation:
