Under these circumstances, it happened that Zillah began at last to engross Gualtier's attention altogether, during the whole of the time allotted to her; and if he had sought ever so earnestly, he could not have found any opportunity for a private interview with Hilda. What her wishes might be was not visible; for, whether she wished it or not, she did not, in any way, show it. She was always the same--calm, cool, civil, to her music-teacher, and devoted to her own share of the studies. Those little "asides" in which they had once indulged were now out of the question; and, even if a favorable occasion had arisen, Gualtier would not have ventured upon the undertaking. He, for his part, could not possibly know her thoughts: whether she was still cherishing her old designs, or had given them up altogether. He could only stifle his impatience, and wait, and watch, and wait. But how was it with her? Was she, too, watching and waiting for some opportunity? He thought so. But with what aim, or for what purpose? That was the puzzle. Yet that there was something on her mind which she wished to communicate to him he knew well; for it had at last happened that Hilda had changed in some degree from her cool and undemonstrative manner. He encountered sometimes--or thought that he encountered--an earnest glance which she threw at him, on greeting him, full of meaning, which told him this most plainly. It seemed to him to say: Wait, wait, wait; when the time comes. I have that to say which you will be glad to learn. What it might be he knew not, nor could he conjecture; but he thought that it might still refer to the secret of that mysterious cipher which had baffled them both.