In other countries, cash may be king, but down in Monaco, property is prince. The tiny principality, which crowds 38,000 people—most of them expats—into less than one square mile, has the highest-priced real estate in the world. It is a place of constant regeneration, where lucky builders and planners can net hundreds of millions from a single development, and the powerful local government—headed by the Prince of Monaco—can make or break fortunes with its awarding, or denial, of glittering contracts.

This is the backdrop against which the recent “Dossiers du Rocher” saga has played out—a multi-party shadow war that takes in Icelandic holding companies, Indian bot farms, warring billionaires, four members of the ruling prince’s inner sanctum, and a cryptic whistle-blower known only as “the Raven.”