London is in a terror. The streets are filled with dippers, makers and bullies of every description, all collecting "contributions for the Professor." But Holmes saw Professor Moriarty swept over a waterfall in Switzerland! Could it be that Europe's Master Criminal somehow survived, and has returned to battle Holmes again in the greatest crime due of all time? It could indeed.
Title: The Return of Moriarty
Author: John Gardner
Year: 1981 (first published 1974)
Publisher: BerkleyPurchase: Amazon (2013 edition)