Praised by his many admirers as a "courageous and fearless" defender of human rights, Heráclito Fontoura Sobral Pinto (1893-1991) was the most consistently forceful opponent of the regime of Brazilian dictator Getúlio Vargas. John W. F. Dulles chronicled Sobral's battles with the Vargas government in Sobral Pinto, "The Conscience of Brazil": Leading the Attack against Vargas (1930-1945), which History: Reviews of New Books called "a must-read for anyone wanting to understand twentieth-century Brazil."

In this second and final volume of his biography of Sobral Pinto, Professor Dulles completes the story of the fiery crusader's fight for democracy, morality, and justice, particularly for the downtrodden. Drawing on Sobral's vast correspondence, Dulles offers an extensive account of Sobral's opposition to the military regime that ruled Brazil from 1964 to 1985. He describes how Sobral Pinto defended those who had been politically influential before April, 1964, as well as other victims of the regime, including Communists, once-powerful labor leaders, priests, militant journalists, and students. Because Sobral Pinto participated in so many of the struggles against the military regime, his experiences provide vivid new insights into this important period in recent Brazilian history. They also shed light on developments in the Catholic Church (Sobral, a devout Catholic, vigorously opposed liberation theology), as well as on Sobral's key role in preserving Brazil's commission for defending human rights.