Beside that, they deserted the boat one day and walked to the ocean and back, through the scented aisles of an interminable pine forest. On the ocean beach they explored the wreck of a schooner cast up on the sand in the storm of a past winter, and played hide-and-seek with Genevieve among the billowy dunes. But in all this time neither had once mentioned the subject of the secret on Slipper Point. Doris, though consumed with impatient curiosity, was politely waiting for Sally to make any further disclosures she might choose, and Sally was waiting for--she knew not quite what! But had she realized it, she would have known she was waiting for some final proof that her confidence in her new friend was not misplaced. Not even yet was she absolutely certain that Doris was as utterly friendly as she seemed. Though she scarcely acknowledged it to herself, she was dreading and fearing that this new, absorbing friendship could not last. When the summer had advanced and there were more companions of Doris's own kind in Manituck, it would all come to an end. She would be forgotten or neglected, or, perhaps even snubbed for more suitable acquaintances. How could it be otherwise? And how could she disclose her most precious secret to one who might later forsake her and even impart it to some one else? No, she would wait. In the meantime, while Doris was growing rosy and brown in the healthful outdoor life she was leading with Sally, Sally herself was imbibing new ideas and thoughts and interests in long, ecstatic draughts. Chief among all these were the books--the wonderful books and magazines that Doris had brought with her in a seemingly endless amount. Sometimes Doris could scarcely extract a word from Sally during a whole long morning or afternoon, so deeply absorbed was she in some volume loaned her by her obliging friend. And Doris also knew that Sally sat up many a night, devouring by candle-light the book she wanted to return next day--so that she might promptly replace it by another! One thing puzzled Doris,--the curious choice of books that seemed to appeal to Sally. She read them all with equal avidity and appeared to enjoy them all at the time, but some she returned to for a second reading, and one in particular she demanded again and again. Doris's own choice lay in the direction of Miss Alcott's works and "Little Lord Fauntleroy" and her favorites among Dickens. Sally took these all in with the rest, but she borrowed a second time the books of a more adventurous type, and to Doris's constant wonder, declared Stevenson's "Treasure Island" to be her favorite among them all. So frequently did she borrow this, that Doris finally gave her the book for her own, much to Sally's amazement and delight. "Why do you like 'Treasure Island' best?" Doris asked her point-blank, one day. Sally's manner immediately grew a trifle reserved.