Sometimes Mr. Rudge had a feeling of loneliness, notwithstanding the immense labor to which he had dedicated his life. This was due in a measure to the fact that a nephew he had adopted had taken a sudden distaste for the Charing Cross Road, and had now been twelve months at sea. A bedroom he had occupied above the shop was vacant; and the use of it was presently offered to Henry Harper. The young man accepted it gratefully. It was one more rare stroke of luck; he was now free to dwell in the land of faërie all day and all night. It seemed as if this was to be a golden time. In a sense it was. Aladdin's lamp was fed continually and kept freshly trimmed. The Sailor began to make surprising progress in his studies, and his kind master, when not too completely absorbed in his own titanic labors after supper, would sometimes help him. In fact, it was Mr. Rudge who first introduced him to grammar. Klondyke had never mentioned it. Miss Foldal had never mentioned it. Mr. Horrobin had never mentioned it. Mr. Rudge it was who first brought grammar home to Henry Harper. Reading was important, said Mr. Rudge, also writing, also arithmetic, but these things, excellent in themselves, paled in the presence of grammar. You simply could not do without it. He could never have planned his "History of the World" in forty volumes excluding the index, let alone have prepared a concrete foundation for such a work, without a thorough knowledge of this science. It was the key to all Culture, and Culture was the crown of all wisdom. On the shelves of the shop were several works on the subject. And Mr. Rudge soon began to spare an hour after supper every night from his own labors, in order that Henry Harper might acquire the key to the higher walks of mental experience. The young man took far less kindly to grammar than he did to reading, writing, arithmetic, or even geography, which Miss Foldal considered one of the mere frills of erudition. He could see neither rhyme nor reason in this new study; but Mr. Rudge assured him it was so important that he felt bound to persevere. Moreover, these efforts brought their reward. They kept him certain hours each day from the things for which he had a passion, so that when he felt he could turn to them again his delight was the more intense. The books he read were very miscellaneous, but Mr. Rudge had too broad a mind to exercise a censorship. In his view, as became a bookseller _pur sang_, all books were good, but some were better than others.