Cardinal Georges Cottier, O.P., while he was still the theologian to the Pontifical Household, wrote an introduction to the book Presidente degli Esorcisti — Esperienze e Delucidazioni di Don Gabriele Amorth (in Italian only). Father Amorth is an exorcist of the Archdiocese of Rome and founder and honorary president of the International Association of Exorcists. The following is a translation of Cardinal Cottier’s introduction, which was posted at Zenit.org on January 22, 2006. The Church must speak about the devil. Though he sinned, the fallen angel has not lost all the power he had, in the governance of the world,...