A great many of the railroad men in Mexico above the grade of brakemen are Americans and the young traveler had very little trouble at the station. He learned, however, that he had two hours to wait before the next train to the capital would be made up, and after buying his ticket and making Pullman reservations he checked his valise and started on a trip about the city.

Through hot unshaded streets he wandered, peering into the curious little shops and watching with interest the swarthy people. Finally he reached the broad plaza with its imposing cathedral, bandstand and line upon line of park benches. Here he sat down to rest and watch a score of dirty, half-clad children playing on the sidewalk. They were apparently taking part in a game and Jack tried very hard to understand the details of it. Indeed he became so interested that he did not realize some one had taken the seat beside him until he felt a hand upon his arm.

Un centavo, Señor, un centavo,” pleaded a whining voice, and Jack found himself accosted by a very ugly and dirty-looking Mexican with a monstrous hat. Though the lad did not understand his language he had little difficulty in guessing that the man was begging for money. Eager to be quit of such an uncouth companion he took several small coins from his coat pocket and dropped them into the beggar’s outstretched palm. But as he did so he looked up to find a man on a bench not far distant watching him closely.

He was rather well dressed when compared to others Jack had noticed about the city, wearing an unusually large sombrero of much better texture than that of the beggar’s. The brim and band about the crown was embellished with Indian beadwork which made it very picturesque. On being observed this man lowered his eyes and began to roll a black paper cigarette, nor did he look up again until Jack left the bench and started across the plaza. However, he watched the lad’s movements from the corner of his eye until the Vermonter turned toward the street that led to the railroad terminal. Then he arose and followed at a distance.


CHAPTER V
IN THE HANDS OF THE SECRET SERVICE

Although the train for Mexico City was due to leave Vera Cruz promptly on the hour, it was forty minutes late when it started to get underway. This slight disregard for schedule did not surprise Jack, however, for already he had discovered this natural failing of all Mexicans. The Pullman coach in which he had secured accommodations was fortunately one of a number of American-built cars that had been taken over the Rio Grande and into Mexico from time to time during the extension of the national railroad system, and in consequence the young traveler did not suffer much from lack of comfort. Before he had traveled very long Jack realized that he had embarked upon the most interesting portion of his journey to the power plant. The train sped along through the most wonderful country that he had ever seen. Now he was racing through deep ravines with perpendicular walls of rock rising so high that daylight was almost shut out and perpetual twilight reigned. From this he was whisked into broad valleys with mountain ranges towering on either side. And often the tracks led high up on the sides of one of these mountains, revealing a broad panorama of tropical country, with Popocatepetl, the monstrous volcano, in the distance.

Now and then Indian villages were passed and Jack caught fleeting glimpses of a group of thatched huts and adobes and crowds of naked children and half-clad men and women who stared stolidly at the train as it shot by. Occasionally a stop was made at some large town and picturesque groups of Mexicans gathered at the station to stare in wonderment at the passengers. Always these groups were made up entirely of men, for the women had far too much to do to waste time idly watching trains. These men were a motley throng, all wearing high-crowned, broad-brimmed hats and gaily colored serapes, or blankets, which they hugged close about them in spite of the heat. The better dressed wore trousers that were extremely tight fitting. The others, however, wore frayed and tattered garments made of everything from sail cloth to sacking and ungainly sandals bound across the arch and around the ankle with long buckskin thongs. Not a shoe did Jack discover among them.

What with the scenery and the picturesque towns and villages, Jack’s interest was kept out of doors for several hours. But eventually even the novelty of traveling through a foreign country grew wearisome and he turned his attention to a book that he had stowed away in his traveling bag. He had not been reading long, however, before he began to be troubled by a strange presentiment that some one was watching him. Quite involuntarily he glanced up from the page he was perusing and looked into the bead-like eyes of a native who was occupying a Pullman chair at the other end of the car. Instantly the Mexican’s eyes were turned away. The lad became suspicious immediately, for he recognized the man as the one who had watched him in the plaza at Vera Cruz. There was no mistaking him, for he wore the same big-brimmed sombrero with its curious beadwork binding.