The three months that we had lived together in the open air had completely changed Mattia. He was no longer the poor, pale boy whom I had found leaning up against the church; much less was he the monster whom I had seen for the first time in Garofoli's attic, looking after the soup, and from time to time clasping his hands over his poor aching head. Mattia never had a headache now. He was never unhappy, neither was he thin or sad. The beautiful sun and the fresh air had given him health and spirits. On our tramps he was always laughing and in a good humor, seeing the best side of everything, amused at anything, happy at nothing. How lonely I would have been without him! We were so utterly different in character, perhaps that was why we got on so well together. He had a sweet, sunny disposition, a little careless, and with a delightful way of overcoming difficulties. We might well have quarreled when I was teaching him to read and giving his lessons in music, for I had not the patience of a schoolmaster. I was often unjust to him, but never once did he show signs of anger. It was understood that while I was down in the mine Mattia and Capi were to go off into the suburbs and give "musical and dramatic performances" and thereby increase our fortune. Capi, to whom I explained this arrangement, appeared to understand and accordingly barked approval. The next day, following close in Uncle Gaspard's footsteps, I went down into the deep, dark mine. He bade me be very cautious, but there was no need for his warning. It is not without a certain fear and anxiety that one leaves the light of day to enter into the bowels of the earth. When far down the gallery I instinctively looked back, but the daylight at the end of the long black tube looked like a white globe,--like the moon in a dark, starless sky. Soon the big, black pit yawned before us. Down below I could see the swaying lamps of other miners as they descended the ladder. We reached the stall where Uncle Gaspard worked on the second level. All those employed in pushing the cars were young boys, with the exception of one whom they called Professor. He was an old man who, in his younger days had worked as a carpenter in the mine but through an accident, which had crushed his fingers, had been obliged to give up his trade. I was soon to learn what it meant to be a miner. CHAPTER XXII IMPRISONED IN A MINE A few days later, while pushing my car along the rails, I heard a terrible roaring. The noise came from all sides. My first feeling was one of terror and I thought only of saving myself, but I had so often been laughed at for my fears that shame made me stay. I wondered if it could be an explosion. Suddenly, hundreds of rats raced past me, fleeing like a regiment of cavalry. Then I heard a strange sound against the earth and the walls of the gallery, and the noise of running water. I raced back to Uncle Gaspard. "Water's coming into the mine!" I cried. "Don't be silly." "Oh, listen!"