"I ought to get a letter by to-morrow noon or night," he said. "And I will wait that long. If I don't get word, I'll take the trip home anyway, seeing as you say you will be kind enough to wait for me."

Kelsey then asked him what he intended to do while waiting, and learning Ralph had nothing in particular in view, he advised the boy to get a guide-book of the city and walk about, so that he might become familiar with the streets.

"The work I have for you will take you out more or less," he said. "And it is a great help if you understand how to get around."

At a nearby bookseller's Ralph purchased a guide-book for twenty-five cents. He studied it off and on the entire afternoon, walking around in the meantime. Before he retired that night at the hotel, he had taken in the city from Fourteenth street down to the Battery.

"It's awful big and crooked," he thought. "But I guess I'll manage to get around, especially if I keep the guide-book on hand for reference."

His first duty in the morning, even before he had breakfast, was to go to the post office. Of course, he found no letter there for him. He inquired at the information office about the Westville mail, and ascertained that the next pouch from that place would be ready for delivery about three o'clock in the afternoon.

"I'll wait for that," he thought. "And then, if there is no word, I'll take the first train home."

To tell the truth, Ralph was growing anxious. The more he thought over the matter, the more he became convinced that he had done wrong in not returning home at once. He was willing to admit that the sight of the great metropolis had proven too much for his better judgment.

When Ralph left the post office building he did not know that he was being followed, yet such was a fact. Martin, who had got into the city but a short while before, had been watching for him, knowing that he would most likely call for mail. The man slunk out of sight when Ralph appeared, and when he went out, dogged him through the crowd like a shadow.

Ralph returned from the post office across Park Row, and from there made his way toward the East Side, as the great tenement district of New York is termed. He had not been through this section very much, and thought to make a tour along the East River.