"Come, come, Olive," the boy shouted triumphantly, this time waving his burning stick like a conquering hero. Olive ran toward the car, dazed, breathless, hardly knowing what had taken place, nor what she was doing. The Indian boy's spirit had somehow seized hold on the situation. "What has happened, imp?" the engineer roared out of his car window. "Is something wrong ahead on the track?" Carlos danced up and down, as though he did not understand what the engineer asked. He had only a dim idea of the man's meaning as he knew so few English words. Olive was slipping by him and Carlos saw that she meant to do what he had planned. The engineer was climbing out of his cab, his back being turned, so that he did not see Olive swing herself up into the next car. In an instant the girl had hidden herself in the midst of great piles of boxes, unobserved by the other trainmen, who were also interested in Carlos. The engineer was determined to find out what the Indian lad had to tell him. If the boy had fooled him and there was nothing for them to fear ahead, he should get the punishment he deserved. Carlos guessed the engineer's meaning from the expression of his face. The boy made a dart that was almost as swift as the first plunge of an arrow from a bow. He was a small brown spot some distance off, when the engineer made up his mind to run after him. The man did run for a few rods, but the idea of catching the boy was ridiculous. He was like a breath of wind, blowing this way and that across the prairie. He could lead the engineer off into the desert, so that he would not know how to return, and the man realized this. He climbed slowly back into his engine, determined to watch out himself for trouble along the track; believing, however, that Carlos had played an ugly trick on him. It would have gone hard with Olive if she had been discovered at this time. The train went tardily on. Olive could hear the men moving on the top of the coach over her head. Once or twice a dirty-faced trainman stuck his head in the open door of the freight car, but he saw nothing of the frightened girl huddled between the boxes. Olive of course had no knowledge of where she was going. Her plan was to crawl out of the car as soon as it stopped at a town and then try to find some one to help her. But the car did not stop and Olive finally fell asleep. CHAPTER XXII. A VOICE IN THE NIGHT. A ROUGH voice aroused Olive. She sprang up in terror and stood pressed close against the piled up freight in the car. It was an odd-looking figure she made, as though she had stepped out of a world several hundred years younger than the present one. The coarse man who watched her dimly felt it.