After this, people began to hear of Edison's fame. But the mania for experiments had seized him. The cut-and-dried monotonous routine of work seemed flat and stale to him by comparison. It was as if an enchanted region of fairyland had been opened to the boy. To be allowed to revel in it he denied himself food and necessary sleep. When he was seventeen years old he invented a telegraph instrument that would transfer writing from one line to another without the help of the operator. There were no want of openings now for him to choose from, but sometimes doors after they had been opened were rudely shut again through envy and evil feeling. In the great world of invention and discovery there are perhaps more "ups and downs" than in any other. Some of Edison's fellow-workers were kind and generous--others were jealous and detracting. One manager did him an ill turn. He was unequal to completing a discovery he had begun. On the thing being shown him, Edison immediately "saw a light" and brought it to completion, but jealousy crept into the man's small mind and he dismissed the boy on a false charge. So at seventeen he was thrown again on the world. Money was still scarce. Books and instruments and calls from home swallowed up the most of it. The boy was chafing under ill-treatment and a sense of injustice. The want of sleep, perhaps of proper food, was telling on him, but he looked forward with a clear, undaunted eye. He wanted to reach a certain town where he believed work awaited him. It meant a walk of a hundred miles. He was weak, disheartened, ill-prepared for it, but he did it. He arrived footsore and weary, with torn shoes and tattered clothes, and his worldly possessions tied in a handkerchief on his back. In this shabby plight he presented himself at the telegraph office. He was eyed coldly enough at first, but by-and-by when tests were given he stood the tests. There was that in the eager eyes and underneath the shabby clothes that could not but make itself felt as a power. He began work. At first his fellow-clerks laughed at him. In time they were won over, and later he stood out as a workman of the first order. He began to collect about him materials for printing--machinery without which he never felt quite happy. He did a clever thing one day in the office that brought him into notice. He took a press report at one sitting--a sitting that lasted from 3.30 p.m. till 4.30 a.m.! After that he carefully divided it into paragraphs so that each printer would have exactly three lines to print, and so that a column could be set up in two or three minutes! It may be that about this time money was rather more plentiful, for Edison began to go to second-hand bookshops and so to gratify his deep-seated thirst for knowledge.