Deducing Sherlock: What The Abominable Bride tells us about Sherlock's character.

The Abominable Brides takes place at least partially (some say completely) in Sherlock’s mind. Therefore, the characters are projections of his subconscious, and different from their real-world versions. Analyze the differences between the characters in the previous seasons and in TAB, and determine what it reveals about that character’s relationship to Sherlock and the way he sees them. For example, Sherlock sees Mary as Mycroft’s spy, or John is more violent than his actual self.