A trip to the ticket office to make reservations and the thing would be done. A vague remembrance that Mexico was a place which demanded passports upon entrance came into her mind but was dismissed airily. Father would attend to that. The fact that Mexico was a troublous region where an American girl might meet with a good many disagreeable adventures was as airily dismissed. All that anyone needed to go anywhere, according to Polly's simple code, was common sense and money. The first she had, the second she intended to get, so why worry? As she sat at the writing-table a slightly martial air came over Polly. Bob must be made to understand the situation. Because a man took it upon himself to dwell in or on a coal mine, Polly was never quite sure of the phrase, in the remote Southwest, he was not absolved from all family duties. The fact that he had married the handsomest girl in Arizona and was indulging in a honeymoon need not prevent an oppressed sister from demanding sympathy. She wrote rapidly. "DEAR BOB: "I know it's awfully nervy of me to drop in on you and Emma right at the beginning of your honeymoon, but I am coming just the same. Joyce Henderson has behaved atrociously to me. I'll explain when I see you. You needn't show this to Emma; you can read her scraps of it." Polly paused. A mental picture of Emma, demure and pretty, came before her. Bob Street was a lucky man to have found a girl like Emma. A dreamy look succeeded the martial one. Visions of a flower-bedecked hacienda--was that what they called them, it didn't sound exactly right--surrounded by peons dozing in the sun succeeded the dimpled vision of Emma. Polly drew her ideas of Mexico entirely from the movies, Bob's short letters being quite lacking in atmosphere. She saw herself leaning over a balcony, listening to the strains of a mandolin, played by a tall, slim youth, who resembled a composite photograph of several of her favorite movie idols. Poor Joyce Henderson, how unimportant he seemed by the side of that radiant vision! Polly scribbled furiously. CHAPTER II ATHENS In the northern part of Mexico, in the state of Sonora, lies the little mining town of Athens, ironically named by someone whose sense of beauty was offended by the yellow stretches of desert sand, broken by hills, dotted here and there by cactus and mesquite, and frowned upon by gaunt and angular mountains. Athens, when the mining industry was running full time, was a busy if not a beautiful spot. Its row of shacks housed workers, male and a few female, to a generous number, while its busy little train of cars--for Athens owned a tiny spur of railroad connecting with the neighboring town of Conejo and operated for reasons germane to the coal industry--gave it, if you were very temperamental, something of the air of a metropolis seen through a diminishing glass.