He wrote a letter to the married one of the two ladies he had spent the day with in Portland, and thanked them for making pass pleasantly a day which he would not otherwise have known how to get through. He let a soft, mysterious melancholy pervade his letter; he hinted darkly at trouble and sorrow of which he could not definitely speak. He had the good sense to tear his letter up when he had finished it, and to send a short, sprightly note instead, saying that if Mrs. Frobisher and her sister came to Boston at the end of the month, as they had spoken of doing, they must be sure to let him know. Upon the impulse given him by this letter he went more cheerfully to bed, and fell instantly asleep. During the next three weeks he bent himself faithfully to the schemes of work his father had outlined for him. He visited New York and Philadelphia, and looked into the business and the processes there; and he returned to Ponkwasset Falls to report and compare his facts intelligently with those which he now examined in his father's manufactory for the first time. He began to understand how his father, who was a man of intellectual and artistic interests, should be fond of the work. He spent a good deal of time with his mother, and read to her, and got upon better terms with her than they usually were. They were very much alike, and she objected to him that he was too light and frivolous. He sat with his sisters, and took an interest in their pursuits. He drove them about with his father's sorrels, and resumed something of the old relations with them which the selfish years of his college life had broken off. As yet he could not speak of Campobello or of what had happened there; and his mother and sisters, whatever they thought, made no more allusion to it than his father had done.