Bristow turned to Dick.
“I shall look you up either this afternoon or to-morrow, and we’ll take a stroll,” he said.
“I’ll be glad to walk with you,” Dick replied.
Breakfast over, they returned to the Pullman, where they began to get their things together, for they were close to New York.
Half an hour later the train plunged into the tunnel under the Hudson river. Mr. Willing, who had been to New York before, explained how the tunnel had been constructed and gave other interesting information.
“You wouldn’t think we were in a tunnel,” exclaimed Shirley. “There is no smoke.”
“Electric engine,” replied Mr. Willing.
“And we go right under the river?”
“Yes.”
“My goodness!” exclaimed Mabel. “Just to think that there is a river running right over the top of us. Suppose it would come through.”