The first scholarly book on Saunière's activities was by local historian and chief librarian of Carcassonne, René Descadeillas, who sifted through the priest's account books and personal correspondence, as well as the records of Saunière's ecclesiastical trial lodged in the Carcassonne Bishopric. He concluded in his 1974 "Mythologie du trésor de Rennes: histoire véritable de l'abbé Saunière, curé de Rennes-le-Château" that there never was any treasure or mystery; all of the priest's wealth was generated from selling Masses and accepting donations. This conclusion was shared by the local priest and author Abbé Bruno de Monts, who himself contributed essential information during the 1980s and 1990s, as well as by other French authors like Jean-Jacques Bedu and more recently David Rossoni.