This biography discusses Pope Pius XIII's wartime silence over the Holocaust and exposes the patent anti-Semitism that led to his fateful concordance with Hitler - a partnership that smoothed the Nazis' path to power and saw the Vatican immensely enriched, financially and politically. In examining Eugenio Pacelli's early career and subsequent rise to papal apotheosis, the author firmly indicts a Pope whom many regard as the most powerful churchman in modern history; one never held to account for the conduct of himself or his church during one of humanity's darkest hours.