The article discusses the "Affair of the Poisons," which was a scandal that occurred in Paris in the late 17th century. This scandal involved various individuals, including members of the aristocracy, allegedly participating in witchcraft, poisonings, and black magic. These activities were uncovered when an investigating magistrate named Gabriel Nicolas de la Reynie began looking into rumors of poisonings and witchcraft. Many prominent figures were implicated, including Madame de Montespan, a mistress of King Louis XIV. The scandal revealed deep-rooted corruption and immorality in the French court.