Before long, the farms grew fewer, and the houses came closer together and instead of having only two tracks, one for the trains going to Boston and the other for trains going in the opposite direction, there were many tracks on both sides, with engines puffing past or cars standing in long lines. Quite soon the trainman came and took their suit-case. Lucy looked at it anxiously for it contained a clean white dress for her and one for Dora. These were to be worn on Sunday if Aunt Margaret wished to take them to church. Lucy was not sure what the man meant to do with the suit-case. Dora did not notice his taking it. The train was moving across a bridge with water coming quite close on either side. In the air, gulls were flying, and in the distance she could see some big ships. The trainman saw that Lucy looked troubled. “The conductor told me to take this,” he said. “I’ll go with you to meet the party you are looking for.” Lucy didn’t know what he meant. “But we aren’t going to a party,” she said shyly. “We are going to meet Aunt Margaret.” The trainman smiled. “I’ll help you meet her,” he said, and he looked so pleasant that Lucy was willing he should take the suit-case. When the train stopped, the children followed the other people to the door and there the trainman stood with the suit-case. He lifted Dora down and took Lucy by the elbow to help her just as he did the grown-up ladies. Then he walked with them down a long platform. Lucy and Dora were glad that he came with them. The train was standing under a big shed with a very high roof and many people were hurrying about. Huge engines snorted and made so much noise that it seemed most confusing. Miss Chandler stood by the gate which let the people through from the train-shed into the other part of the station. She kissed the little girls and thanked the kind trainman for helping them find her. The first thing was to dispose of the suit-case. Miss Chandler called a messenger-boy and sent him to take it to her rooms. “Now,” she said to the children, “we will go by the elevated train.” Lucy and Dora had read about the elevated railways in big cities, but neither had been on one. They went through the big station and up some steps and through a turnstile and along a corridor above a street where the trucks and electric cars were, and up some more steps to a platform. Soon a train of cars came, but it did not have a smoky engine. This train ran by electricity. “Is this the evelated train?” asked Dora. “Yes, this is the elevated,” said Miss Chandler, laughing. “We will step into this car.” In half a minute the train was again moving, but the children were surprised because it did not stay on the tracks above the street. Instead, it promptly plunged underground, into a lighted tunnel which ran under the street instead of above it. “It is a funny kind of elevated train which runs underground, isn’t it?” said Miss Chandler. “But it does in Boston.”