Answer:
carrying its passengers aboard
Step-by-step explanation:
The awnser was simply in this paragraph :
The log cabin in which she dwelt with her parents was just outside the enclosure in which she had been sleeping. Beyond was a small clearing that did duty as a cotton field. All else was dense wood, except the long stretch that curved round the brow of the hill, and in which glittered the steel rails of the Texas and Pacific road.