Before he was Sherlock's rival, Moriarty fought against the unfair class caste system in London by making sure corrupt nobility got their comeuppance. But even the most well-intentioned plans can spin out of control--will Moriarty's dream of a more just and equal world turn him into a hero...or a monster?

While there's never a dull moment at 221B Baker Street, things are about to get a whole lot more lively. Or rather...lovey? And that's because John has just announced to everyone that he is happily engaged to the lovely Mary Morstan. She has a very odd request for Sherlock, however--one that makes him question her true intentions. Or perhaps he's just jealous that Watson is being taken from him!