In Secret Societies and Subversive Movements, Mrs. Nesta H. Webster offers a penetrating historical study of the hidden forces that have shaped revolutions and ideological upheavals from antiquity to the modern era. Drawing on meticulous research, she traces the evolution of secret organizations-from ancient brotherhoods to modern political orders-and examines their role in undermining established institutions, faith, and social order. With particular attention to the origins of Freemasonry and the divergence between English and Continental currents of thought, Webster reveals an unbroken thread of clandestine influence running through European history. At once scholarly and unsettling, this work explores the persistent tension between authority and subversion, offering a sweeping interpretation of the movements that have transformed the Western world.