A shocking tale of intrigue and suspense, illustrated with sixteen pages of archival photos, illuminates this religious leader’s daring yet little-known campaign, a spiritual and political battle that would be derailed by Pius’s XIs death just a few months later. Peter Eisner reveals how Pius XI intended to unequivocally reject Nazism in one of the most unprecedented and progressive pronouncements ever issued by the Vatican, and how a group of conservative churchmen plotted to prevent it. For years, only parts of this story have been known. Eisner offers a new interpretation of this historic event and the powerful figures at its center in an essential work that provides thoughtful insight and raises controversial questions impacting our own time.