John needs a date to the charity function now that he and Sarah are on the outs, so Mike steps in and gives John a number. He almost forgets about it until later. But decides to check it out.

Post The Great Game. Moriarty wants revenge after The Pool. He hits upon a unique and twisted way to get it. John/Moriarty. Asexual Sherlock. John/Mycroft one-sided in later chapters. Graphic description of dub-con.