The General certainly did all in his power to induce her to learn; and if she did not, it was scarcely his fault. But, while Zillah thus grew up in ignorance, there was one who did profit by the instructions which she had despised, and, in spite of the constant change of teachers which Zillah's impracticable character had rendered necessary, was now, at the age of nineteen, a refined, well-educated, and highly-accomplished young lady. This was Hilda Krieff. General Pomeroy was anxious that she should have every possible advantage, and Zillah was glad enough to have a companion in her studies. The result is easily stated. Zillah was idle, Hilda was studious, and all that the teachers could impart was diligently mastered by her. CHAPTER VII. THE SECRET CIPHER. Some time passed away, and Gualtier made his usual visits. Zillah's moods were variable and capricious. Sometimes she would languidly declare that she could not take her lesson; at other times she would take it for about ten minutes; and then, rising hastily from the piano, she would insist that she was tired, and refuse to study any more for that day. Once or twice, by an extreme effort, she managed to devote a whole half hour, and then, as though such exertion was superhuman, she would retire, and for several weeks afterward plead that half hour as an excuse for her negligence. All this Gualtier bore with perfect equanimity. Hilda said nothing; and generally, after Zillah's retirement, she would go to the piano herself and take a lesson. These lessons were diversified by general conversation. Often they spoke about Zillah, but very seldom was it that they went beyond this. Miss Krieff showed no desire to speak of the subject which they once had touched upon, and Gualtier was too cunning to be obtrusive. So the weeks passed by without any renewal of that confidential conversation in which they had once indulged. While Zillah was present, Hilda never in any instance showed any sign whatever of anger or impatience. She seemed not to notice her behavior, or if she did notice it she seemed to think it a very ordinary matter. On Zillah's retiring she generally took her place at the piano without a word, and Gualtier began his instructions. It was during these instructions that their conversation generally took place. One day Gualtier came and found Hilda alone. She was somewhat _distrait_, but showed pleasure at seeing him, at which he felt both gratified and flattered. "Where is Miss Pomeroy?" he asked, after the usual greetings had been exchanged. "You will not have the pleasure of seeing her to-day," answered Hilda, dryly. "Is she ill?" "Ill? She is never ill. No. She has gone out." "Ah?"