"What in the world does that mean?" thought Tom, but he did not tell Ned what he had picked up as it went over the wire. "Why should Andy want to be informed when we leave? That's why Pete was hanging around here! He had been instructed to let Andy know when we left for Seattle. There's something queer back of all this."
Tom was still puzzling over the matter when their train rolled in and he and the others got aboard.
"Well, we're off!" cried Ned.
"Yes; we're off," admitted Tom, and, to himself he added: "No telling what will happen before we get there, though."
The trip to Chicago was without incident, and, on arrival in the Windy City, Tom was on the lookout for Andy or his father, but he did not see them. He made private inquiries at the hotel mentioned in Pete's telegram, but learned that the Fogers had gone on.
"Perhaps I'm worrying too much," thought Tom. But an event that occurred a few nights later, when they were speeding across the continent showed him that there was need of great precaution.
On leaving Chicago, Tom had noticed, among the other passengers traveling in the same coach