The Taxil hoax was an 1890s hoax of exposure by Léo Taxil intended to mock not only Freemasonry but also the Catholic Church's opposition to it. Taxil and Freemasonry Léo Taxil was the pen name of Marie Joseph Gabriel Antoine Jogand-Pagès, who had been accused earlier of libel regarding a book he wrote called The Secret Loves of Pope Pius IX. On April 20, 1884, Pope Leo XIII published an encyclical, Humanum genus, that said that the human race was: After this encyclical, Taxil underwent a public, feigned conversion to Roman Catholicism and announced his intention of repairing the damage he had done to the true faith. The first book produced by Taxil after his conversion was a four-volume history of Freemasonry, which contained fictitious eyewitness verifications of their participation in Satanism. With a collaborator who published as "Dr. Karl Hacks", Taxil wrote another book called Le Diable au XIXe siècle (The Devil in the Nineteenth Century), which introduced a new character, Diana Vaughan, a supposed descendant of the Rosicrucian alchemist Thomas Vaughan. The book contained many tales about her encounters with incarnate demons, one of whom was supposed to have written prophecies on her back with its tail, and another who played the piano while in the shape of a crocodile. Diana was supposedly involved in Satanic Freemasonry but was redeemed when one day she professed admiration for Joan of Arc, at whose name the demons were put to flight. As Diana Vaughan, Taxil published a book called Eucharistic Novena, a collection of prayers which were praised by the Pope. Palladists In the Taxil hoax, Palladists were members of an alleged Theistic Satanist cult within Freemasonry. According to Taxil, Palladism was a religion practiced within the highest orders of Freemasonry. Adherents worshipped Lucifer and interacted with demons. In 1891 Léo Taxil (Gabriel Jogand-Pagès) and Adolphe Ricoux claimed to have discovered a Palladian Society. An 1892 French book Le Diable au XIXe siècle (The Devil in the 19th Century", 1892), written by "Dr. Bataille" (actually Jogand-Pagès himself) alleged that Palladists were Satanists based in Charleston, South Carolina, headed by the American Freemason Albert Pike and created by the Italian liberal patriot and author Giuseppe Mazzini. Arthur Edward Waite, debunking the existence of the group in Devil-Worship in France, or The Question of Lucifer, ch. II: "The Mask of Masonry" (London, 1896), reports according to "the works of Domenico Margiotta and