John continued this kind of life without interruption for two months, in the course of which time he had become very expert in the management of his sheep; and Will was so much pleased with his diligence, that he taught him both to make and also to play upon the same sort of whistle on which he was himself so skilful a performer. John could now play, very tolerably, the old Scottish air of "_the Ewe-buchts, Marion!_" a very particular favourite of his, although Will said he thought it rather the name than the tune which had caught the boy's fancy. His reading had likewise improved wonderfully. Mr. Martin had lent him a common copy of Robinson Crusoe (for the elegant one with the plates was too valuable to be carried to the hill), and this book, which had first excited his desire of learning, now became the constant companion of his leisure moments. Indeed it would have entirely driven the whistle, the knitting, and everything else out of his head, if Will, who was somewhat proud of his scholar, had not insisted on his continuing to work at his stockings some part of every day, and to display his progress in music to his fellow-servants every evening. Helen and Marion had by this time both recovered, though Marion was still delicate. The latter, however, had found out that John's sheep grazed very often just opposite to her father's house; she therefore, more than once, made her way across the water to listen to John's whistle, which she greatly admired; and she at the same time convinced him that she could sing, and, according to his taste, very sweetly.