We cheered and waved our hats as it went by. I noticed a girl, who was sitting at one of the windows in the passenger car, give a look of surprise when she saw us; then she leaned far out and waved her handkerchief. It wasn't anybody that I knew, but when Skinny saw her he jumped to his feet and let out a yell. And what he said was: "Mary!" It surprised us some. You may not believe it, but the girl was Mary Richmond, the one Skinny walked down the mountain with, that time he lassoed the bear, when he was doing his hike to Savoy and back. She had been up to Readsboro with her mother, visiting. "Come on," said he, starting on a run. "She'll have to change cars at Hoosac Tunnel station." "Aw, what's the use?" said Bill. "We don't know her." At that instant, while we stood there watching, we saw the engine give a sudden lurch and then go bumping over the ties. In another moment it struck a rock or something and, with an awful crash, the whole train went off the embankment into the river below. CHAPTER XX SCOUTS TO THE RESCUE YOU may have heard of that wreck, for the papers printed a lot about it at the time. After the first crash, there was not a sound. I don't know how long we stood there, paralyzed with horror, staring at the place where the train had been. Then we heard a shriek of fear, or pain, we couldn't tell which, and it was a girl's voice. That shriek brought us to our senses. "Scouts to the rescue!" Skinny shouted at the top of his voice, hoping that Mr. Norton and the others would hear, and we started on a run. Before we had gone halfway Skinny turned to Benny. "Run back to the camp," said he. "Get the bandages and other first-aid things." "And bring my rope and hatchet," he called, over his shoulder. The awful stillness after that first shriek sent us on faster than ever, while something seemed to clutch at our throats so that we hardly could breathe. Bill got there first, but we were not far behind. When we had come close we could see the train, lying on the stones in the river bed. The engine had turned bottom side up and lay there on its back with its wheels in air. The passenger car was on its side and was so badly smashed that it didn't look like a car at all. "We've got to have help and have it quick," said Skinny, looking almost pale. "Who'll go to Hoosac Tunnel station for help? Hank, you go, and run like Sam Hill." Hank was off like a deer before the words were out of his mouth, running toward the station, nearly two miles away. "Mary!" called Skinny. "Mary! Where are you?" "Here," we heard a faint voice say. And, climbing down, we found her, wedged in between some timbers so that she could not move. "Are you hurt?" we asked, as we commenced to pry her loose. "A little," she told us, beginning to cry. "I don't know how much, but I'm all right for now. Find mamma. I don't know where she is." After a little search we found her, nearly covered with timbers and bleeding from a cut in her head.