Sherlock is upset at not knowing who the mastermind behind the Noahtic and Drebber cases is, and takes his frustration out on John. While returning by train from an investigation, Sherlock has a chance reunion with William.
Just how much does he know about us?
كم يعرف بخصوصنا يا ترى؟
¿Cuánto sabe sobre nosotros?
À quel point s’est-il renseigné sur nous ?
O quanto ele sabe sobre nós?