Sherlock: Sign of Four

Sherlock and Dr Watson receive a visit from Mary Morsten, who offers up a particularly cryptic puzzle for them to solve. Her father went missing six years ago and since then she has received a pearl for every year he has not re-appeared. Now, the treasure's sender has requested a meeting and she would like Sherlock and Watson to accompany her.

Sherlock si Dr. Watson primesc o vizita de la Mary Morsten, care le ofera un puzzle deosebit de criptic pe care sa-l rezolve. Tatal ei a disparut in urma cu sase ani si de atunci ea a primit o perla pentru fiecare an in care nu a mai reaparut.