I darted in the opposite direction. I heard Bud and Bill yelling, and the angry crack and hiss of the fire. A few rods down I stopped, struck another match, and lit the grass. There was a sputter and flash. Then the flame flared up, spread like running quicksilver, and, meeting the pine-needles, changed to red. I ran on. There was a loud flutter behind me, then a crack almost like a shot, then a seething roar. Another pine had gone off. As I stopped to strike the third match there came three distinct reports, and then others that seemed dulled in a windy roar. I raced onward, daring only once to look back. A fearful sight met my gaze. The slope was a red wave. The pines were tufts of flame. The air was filled with steaming clouds of whirling smoke. Then I fled onward again. Match after match I struck, and when the box was empty I must have been a mile, two miles, maybe more, from the starting-point. I was wringing-wet, and there was a piercing pain in my side. I plunged across the brook, and in as deep water as I could find knelt down to cover all but my face. Then, with laboring breaths that bubbled the water near my mouth, I kept still and watched. The back-fire which I had started swept up over the slope and down the brook like a charge of red lancers. Spears of flame led the advance. The flame licked up the dry surface-grass and brush, and, meeting the pines, circled them in a whirlwind of fire, like lightning flashing upward. Then came prolonged reports, and after that a long, blistering roar in the tree-tops. Even as I gazed, appalled in the certainty of a horrible fate, I thrilled at the grand spectacle. Fire had always fascinated me. The clang of the engines and the call of “Fire!” would tear me from any task or play. But I had never known what fire was. I knew now. Storms of air and sea were nothing compared to this. It was the greatest force in nature. It was fire. On one hand, I seemed cool and calculated the chances; on the other, I had flashes in my brain, and kept crying out crazily, in a voice like a whisper: “Fire! Fire! Fire!” But presently the wall of fire rolled by and took the roar with it. Dense billows of smoke followed, and hid everything in opaque darkness. I heard the hiss of failing sparks and the crackle of burning wood, and occasionally the crash of a failing branch. It was intolerably hot, but I could stand the heat better than the air. I coughed and strangled. I could not get my breath. My eyes smarted and burned. Crawling close under the bank, I leaned against it and waited.