Voici un article sur les meilleures sociétés secrètes en littérature. C'est en anglais.

Je vous mets un petit extrait :

"Spectre
The organisation against which James Bond fights is a rough sort of acronym: the Special Executive for Counter-intelligence, Terrorism, Revenge and Extortion. Its leader is Ernst Stavro Blofeld, and first appears in Thunderball. A grand amalgamation of other evil groups (including Smersh and the Mafia) it is dedicated to world domination.

The Ku Klux Klan
Sherlock Holmes encounters this most notorious of racist organisations in "The Five Orange Pips". Its "outrages", Holmes tells Watson, are "preceded by a warning sent to the marked man in some fantastic but generally recognised shape" – those orange pips. The murder victim in this tale has betrayed the Klan."