PROLOGUE   n the edge of a green plain around which rise the first steps of the immense amphitheatre of the Alps, a little castled city enthroned on a solitary hill watches since a thousand years the eternal and surpassing spectacle. Around its feet a river runs, a silver girdle bending northward between pastures green, while eastward over the towering azure heights the sunrise waves its flags of rose and gold. In the dim hours of... more...