When Marco opened the door, the young soldier who had escorted him from the Hof-Theater was standing outside. He looked as uninterested and stolid as before, as he handed in a small flat package. "You must have dropped it near your seat at the Opera," he said. "I was to give it into your own hands. It is your purse." After he had clumped down the staircase again, Marco and The Rat drew a quick breath at one and the same time. "I had no seat and I had no purse," Marco said. "Let us open it." There was a flat limp leather note-holder inside. In it was a paper, at the head of which were photographs of the Lovely Person and her companion. Beneath were a few lines which stated that they were the well known spies, Eugenia Karovna and Paul Varel, and that the bearer must be protected against them. It was signed by the Chief of the Police. On a separate sheet was written the command: "Carry this with you as protection." "That is help," The Rat said. "It would protect us, even in another country. The Chancellor sent it--but you made the strong call--and it's here!" There was no street lamp to shine into their windows when they went at last to bed. When the blind was drawn up, they were nearer the sky than they had been in the Marylebone Road. The last thing each of them saw, as he went to sleep, was the stars--and in their dreams, they saw them grow larger and larger, and hang like lamps of radiance against the violet-velvet sky above a ledge of a Himalayan Mountain, where they listened to the sound of a low voice going on and on and on. XXII THE NIGHT VIGIL On a hill in the midst of a great Austrian plain, around which high Alps wait watching through the ages, stands a venerable fortress, almost more beautiful than anything one has ever seen. Perhaps, if it were not for the great plain flowering broadly about it with its wide-spread beauties of meadow-land, and wood, and dim toned buildings gathered about farms, and its dream of a small ancient city at its feet, it might--though it is to be doubted--seem something less a marvel of medieval picturesqueness. But out of the plain rises the low hill, and surrounding it at a stately distance stands guard the giant majesty of Alps, with shoulders in the clouds and god-like heads above them, looking on--always looking on--sometimes themselves ethereal clouds of snow-whiteness, some times monster bare crags which pierce the blue, and whose unchanging silence seems to know the secret of the everlasting. And on the hill which this august circle holds in its embrace, as though it enclosed a treasure, stands the old, old, towered fortress built as a citadel for the Prince Archbishops, who were kings in their domain in the long past centuries when the splendor and power of ecclesiastical princes was among the greatest upon earth.