A historical work that defends and reexamines the Catholic history of the Inquisition. This book challenges Protestant and secular historical narratives by providing a strong Catholic perspective on the institution. Walsh recounts the stories and roles of six prominent Grand Inquisitors, including controversial figures such as Tomás de Torquemada and Pope Gregory IX. The book examines the reasons for the Inquisition's establishment, its goals, and its long-term impact on defending Catholic teaching. The author argues that the Inquisition, during its time, saved Catholic countries from the brutal 'witch-hunts' that were prevalent in Protestant territories. The work generally exonerates the Catholic Church from the narrative of extreme abuse of power often associated with the Inquisition.