In the latter part of the afternoon they took a walk in the village, and Ida pressed her companion with a multitude of inquiries about the members of the families which had occupied the houses, forty and fifty years before, and what had since become of them; to reply to which taxed Miss Ludington's memory not a little. As they came to the schoolhouse Ida ran on ahead, and when her companion entered, was already seated in Miss Ludington's old seat. Nothing, perhaps, could have brought home to the latter more strongly the nature of her relationship to Ida than to stand beside her as she sat in that seat. As they fell to talking of the scholars who had sat here and there, Miss Ludington began gently to banter Ida about this and that boyish sweetheart, and divers episodes connected with such topics. "This is unfair," said the girl, smiling. "It is a very one-sided arrangement that you should remember all my secrets while I know none of yours. It is as if you had stolen my private journal." A subtle coyness, an air of constraint, and of shy, curious observance, which had marked Ida's manner toward Miss Ludington in the early part of the day, had noticeably given way under the influence of the latter's blithe affectionateness, and it was with arms about each other's waists that the two sauntered back to the house, in the twilight. "I scarcely know what to call you," said Ida. "For me to call you Ida, as you call me, would be and, besides, you are so much older than I it would seem hardly fitting." Miss Ludington laughed softly. "On the score of respect, my darling, you need not hesitate," she said, "for it is you who are the elder Miss Ludington, and I the younger, in spite of my white hair. You are forty years older than I. It is I who owe you the respect due to years. You are right, however; it would be confusing for us to call each other by the same name, and still there is no word in human language that truly describes our relationship." "It seems to me it is more like that of sisters than any other," suggested Ida, with a certain timidity. Miss Ludington reflected a moment, and then exclaimed, delightedly: "Yes, we will call each other sister, for our relation is certainly a kind of sisterhood. We are, like sisters, not connected directly, but indirectly, though our relation to our common individuality, as if we were fruit borne by the same tree in different seasons. To be sure," she added regarding her blooming companion with a smile of tender admiration, "we can scarcely be said to look as much alike as sisters commonly do, but that is because there is not often a difference of more than forty years in the ages of sisters." And so it was agreed that they should call each other sister.