True to his word, when the train pulled into the station where the stop was made for those passengers who desired to get lunch, the stranger insisted upon Bob getting out and eating with him. And Bob found that the man's appetite was just as keen when he was paying for his food, as when he was eating that provided by others. After the return to the car, the interesting stories were resumed, and Bob had little opportunity to notice the region through which he was passing, new and unusual to him as was its scenery, save when his attention was called to some striking feature by his companion. "It won't be long now before we reach Chicago," remarked the man. "No, I suppose not," admitted Bob with a sigh. "I only wish you were going out to Fairfax with me." "Oh, well, you'll find, more likely than not, that some of the passengers on the train you take are bound for Oklahoma, and they will probably be able to afford you more assistance and information than I." The suggestion made by Bob about returning to Oklahoma seemed to make a deep impression upon the stranger, and he lapsed into silence from which he only roused himself after the train had pulled into the station at Chicago, when he jumped up suddenly, grabbed Bob by the shoulder, shook him with a gentle roughness, and murmured: "Good luck to you, boy, and whatever you do, be straight," and rushed from the car, leaving Bob bewildered by the abruptness of his departure. Despite the evident mystery which hung over his travelling companion, Bob had felt more at ease when he was with him, and it was with a sense of loss that he saw him leave the car, for the boy had hoped that he would accompany him to the railway offices while he got his pass, and he had even dared to think he might be able to persuade him to make the visit to Mrs. Cameron with him. But the man's departure had shattered his hopes, and Bob, with a feeling of great loneliness, mechanically followed the other passengers from the car out upon the wide platform. His feeling of isolation was made even more poignant by the hearty greetings which sounded all around him, as one after another of the people who had arrived on the same train were met by their friends or families. Following the crowd, he passed through the station out onto the sidewalk. There he stood for a moment, searching the windows of the buildings across the street for the name of the railway offices to which Mr. Perkins had directed him. With little difficulty he spied great gilt letters which formed the words "Grand Pacific Railway," and picking his way carefully through the throng of carriages, automobiles and trucks, which were passing up and down the street, he soon reached the building, and was on the way to the offices in the elevator. Entering one of the doors, he beheld several handsomely polished desks, at which busy men were seated.