Familiar as they may be, there is something strangely impressive about all-night journeys by rail, and those forming part of an American transcontinental trip are almost weird.  From the windows of a night express in Europe or the older portions of the United States, one looks on houses and lights, cultivated fields, fences, and hedges; and, hurled as he may be through the darkness, he has a sense of companionship and semi-security.  Far different is it when the long train is running over those two rails which, seen before night set in, seem to meet on the horizon.  Within all is as if between two great seaboard cities; the neatly dressed people, the uniformed officials, the handsome fittings, the various appliances for comfort.  Without are now long dreary levels, now deep and wild canyons, now an environment of strange and grotesque rock-formations, castles, battlements, churches, statues.  The antelope fleetly runs, and the coyote skulks away from the track, and the gray wolf howls afar off.  It is for all the world, to one’s fancy, as if a bit of civilization, a family or community, its belongings and surroundings complete, were flying through regions barbarous and inhospitable.

From the cab of Engine No. 32, the driver of the Denver Express saw, showing faintly in the early morning, the buildings grouped about the little station ten miles ahead, where breakfast awaited his passengers.  He looked at his watch; he had just twenty minutes in which to run the distance, as he had run it often before.  Something, however, traveled faster than he.  From the smoky station out of which the train passed the night before, along the slender wire stretched on rough poles at the side of the track, a spark of that mysterious something which we call electricity flashed at the moment he returned the watch to his pocket; and in five minutes’ time the station-master came out on the platform, a little more thoughtful than his wont, and looked eastward for the smoke of the train.  With but three of the passengers in that train has this tale especially to do, and they were all in the new and comfortable Pullman “City of Cheyenne.”  One was a tall, well-made man of about thirty—­blond, blue-eyed, bearded, straight, sinewy, alert.  Of all in the train he seemed the most thoroughly at home, and the respectful greeting of the conductor, as he passed through the car, marked him as an officer of the road.  Such was he—­Henry Sinclair, assistant engineer, quite famed on the line, high in favor with the directors, and a rising man in all ways.  It was known on the road that he was expected in Denver, and there were rumors that he was to organize the parties for the survey of an important “extension.”  Beside him sat his pretty young wife.  She was a New Yorker—­one could tell at first glance—­from the feather of her little bonnet, matching the gray traveling dress, to the tips of her dainty boots; and one, too, at whom old Fifth Avenue promenaders would have turned to look.  She had a charming figure, brown hair, hazel eyes, and an expression at once kind, intelligent, and spirited.  She had cheerfully left a luxurious home to follow the young engineer’s fortunes; and it was well known that those fortunes had been materially advanced by her tact and cleverness.