"Four!" declared Freddie. "Come on!" he called to his sister, "let's see how long it takes to walk around it."
"Don't go too far away," said Mrs. Bobbsey, who, for the moment, did not realize how really large the station was. "Don't get lost!" she went on.
"No'm, we won't!" promised Flossie and Freddie.
They started off to walk around the large depot, which, as you who have seen it know, takes up a whole New York City block, or "square," as you will say if you live near Philadelphia.
Mr. Bobbsey's business took him a little longer than he expected, but as Bert and Nan begged to be allowed to buy a little candy at the newspaper stand near them, and as Mrs. Bobbsey wanted a magazine, the getting of these things took a little time, so the three did not notice how long Mr. Bobbsey was away from them.
When he came back, having sent his message and found out what he wanted to know the twins' father asked:
