In 1938, Pope Pius XI secretly commissioned an American Jesuit, John LaFarge, to write an encyclical condemning racism and antisemitism — a document that could have changed the course of history. Peter Eisner uncovers the dramatic story of how LaFarge worked in secret across Europe while Nazi power grew, and how a Vatican insider ultimately suppressed the document before the Pope could publish it. A gripping tale of courage, faith, and political intrigue at the highest levels of the Catholic Church on the eve of World War II.