"There is the mystery; it is a secret," whispered the old man, "which those who know dare not tell, and none know but those who are in the power of our great adversary; and indeed none but wicked persons will ever venture the discovery. Once only a wandering musician by miracle appeared again; but he came commissioned by the powers of darkness to traverse the world; and he plays strange notes upon a pipe--sounds which are heard to echo first in the distance, then more loud and sweet. Those who approach too close within his sphere are seized with a strange unaccountable delirium; and away they run in search of the mountain, heedless of every obstacle, and never weary--never satisfied until they gain the fatal summit, which opens for them, and whence there is no return. Their supernatural strength forsakes them only in the infernal abode; when they continue wandering round its unhallowed precincts like unblest pilgrims, without the least hope of salvation. I lost all hope of comfort in my two sons long ago: they grew wilful and abandoned; they despised their parents, and our holy faith itself. Then they began to hear the strange music; and they are now fled far into the hills--the inhabited world is too narrow for them; and they will never stop until they reach the boundless regions below." And the old man wrung his hands. "And what do you think of doing in this matter?" "What should I do?--with this crutch, my only support, I have set out in pursuit of them, being determined either to find them or to die." At these words he rose with a resolute effort, and hastened forward as fast as his feeble steps could bear him, as if fearful of losing a moment; while Eckart gazed after him with a look of pity, lamenting his useless anxiety and sorrows yet to come. "To all his other evils," cried Eckart, "even madness itself does not seem to have brought any relief." Night came, and passed away;--the morning broke, yet no signs of young Conrad. The old warrior wandered among the hills, and cast his eyes wistfully towards the castle; still no one appeared. Then he heard a tumult, as if proceeding from the place; and, unable to restrain his anxiety, he at last mounted his steed that was grazing near, and rode hastily towards the castle. He no longer disguised himself, but spurred boldly among the troops and pages surrounding the castle-gates, not one of whom ventured to stop or lay a hand upon him. All opened to him a path. "Where is my son Conrad?" inquired the old hero, as he advanced. "Inquire nothing," said one of the pages, casting down his eyes: "it would only grieve you;--better turn back." "And Dietrich," added the old man,--"where is he?" "Mention his name no more," said an aged knight, "the duke's rage was kindled, and he thought to punish you through him."