So heavy was the load of bitterness that oppressed him that even the singing of the Kronprinz, who was moved to break forth into song just then, failed for a time to arouse him. Yet presently the sweet sound penetrated the thick substance of his sorrow, and slowly turned the current of his sombre thoughts. Andreas loved all music; but because of the long train of associations which it invoked, and because of his skilled knowledge of its quality, there was no music so sweet to him as the singing of a bird. And when the singer was the Kronprinz, who sang with a mellow sweetness rare and wonderful, the music never failed to move his tender nature to its very depths. And so, as he listened to the singing of his bird, gentler and better thoughts possessed him; and then he reproached himself for the selfishness that had so filled his heart. He had no right, he thought, to stand in the way of Roschen's happiness--to compel her to take the old love that he had to give in place of the fresh young love that was offered to her. It was only a foolish fancy, this that he had cherished, that she was his sweetheart of long ago; it was the rational truth that he had to deal with--that she was his daughter, who had given him in full measure a daughter's love and duty, and for whom now, as was a father's duty, he must secure a good husband, who would care for her well and loyally when death had taken her father from her. This was the right conclusion, but all the strength of his will was required to bring him to it; and when at last He said to himself that what so plainly was right should be firmly done, the color suddenly left his face, and there went through his heart the sharp pang that he had learned to dread because of the agony of it. So wrenching was the pain that he could not repress a cry; but it was not a loud cry, and the sound of it was lost in the glad carolling of the Kronprinz's song. When Roschen came home, a little later, she was frightened by finding her father looking so pale and worn; but the sight of her dear face, and her loving looks and words, revived him quickly, and her fear passed by. And she forgot her fear the sooner because of the momentous question which he then opened to her; for this last sharp seizure, keener than any that had preceded it, had warned Andreas that the duty which he had to do should not be delayed.