At once a little girl rose from her seat and walked to the door of the car, carrying a wicker suit-case in one hand and a round bird-cage covered up with newspapers in the other, while a parasol was tucked under her arm. The conductor helped her off the car and then the engineer started his train again, so that it puffed and groaned and moved slowly away up the track. The reason he was so late was because all through the night there were times when the solid earth shook and trembled under him, and the engineer was afraid that at any moment the rails might spread apart and an accident happen to his passengers. So he moved the cars slowly and with caution.