If, then

I recently read The Lost Special and The Man with the Watches, by Sir Arthur Conan Doyle. Phillip A. Schreffler makes the claim (in the "Afterword") that the character who writes to the newspapers with a possible solution is none other than Sherlock Holmes, even though his name is never mentioned. In the story, he is referred to as "an amateur reasoner of some celebrity at that date." And the first line of the letter contains one of Holmes' most famous axioms, in addition to the words "elementary principle." After reading the canon, it seems to me that he favors the word "elementary." He is also an INTP, and this type likes logic and theories, which involves applying principles.

Well, if the unnamed fellow is indeed Mr. Holmes, then I do believe Professor Moriarty, or one of those under him, is undeniably in The Lost Special. The events took place in 1980, before the death of the professor. The principle perpetrator engaged the aid of an agent he described as "one of the acutest brains in England....it would be unjust to claim all the credit for myself."

The perpetrator also wrote of his agent: "he had command of a band of workers who were trustworthy and intelligent. The idea was his, and my own judgement was only required in the details."

Finally, he said, "I have already spoken of my English agent--who is a man with a considerable future before him, unless some complaint of the throat carries him off before his time."

The crime itself was rather spectacular. They made a train disappear without a trace.  The finesse and successful completion of the crime further points to Moriarty being behind it somewhere.  

And I really should try and find what the Sherlockian scholars have to say about it...

Bibliography

Sir Arthur Conan Doyle, The Further Adventures of Sherlock Holmes. The Reader's Digest Association, Inc. Pleasantville, N. Y. : 1993

Joe Butt, INTP Profile. http://www.typelogic.com/intp.html

For more about the personality type of S. H. see:
http://loreandlit.blogspot.com/2013/11/sherlock-holmes-book-character-as.html