"If I can only succeed in my mission!" he thought. "If I can only find Ralph Harding, and induce him to vindicate my father's reputation, I shall feel happy!"

It so happened that he had seated himself in the smoking car, the car behind, which he first entered, being full.

A tall, thin man, wearing a white hat, sat down beside him.

"Have a cigar, young man?" he asked, as he produced two of rather poor quality, one of which he lighted and proceeded to smoke.

"No, thank you, sir."

"Better accept a good offer," urged the stranger.

"Thank you, but I don't smoke."

"Indeed! How old are you?"

"I am sixteen," replied Bert.

"Then you are a rara avis—that means a rare bird. Most boys of your age smoke."