"Have you any idea where we ought to look first?" asked Sam.
"I think we may as well leave our bags on check at this depot and look around here," was the answer. "Tom started from here and maybe we'll be lucky enough to meet somebody who saw and remembered him."
Having checked the suitcases, the Rovers started in earnest, asking the men at the news stand and in the smoking room and at the lunch counter and restaurant. Then they questioned the taxicab drivers, and even some of the newsboys and bootblacks.
"It looks almost hopeless," said Sam, at last.
"Not yet," returned Dick. "We haven't struck the most important people yet. Funny we didn't think of them first."
"Whom do you mean?"
"The ticket sellers. Let me have that photo of Tom and we'll see if any of them remember him."
From one ticket window they went to another, until they reached an elderly man, who gazed at the photograph with interest.
"Yes, I remember that young man," he said, slowly. "He was here yesterday afternoon."
"Did he buy a railroad ticket?"