"And so have I," agreed Frank. "And I have a feeling that it was not under very favorable circumstances."

Each lad racked his brain for a brief moment; then Jack said:

"Well, I guess it doesn't make any difference. Let's go."

He turned about and took a step forward. Frank was about to do the same, when a sudden thought flashed into his head.

"Wait a minute," he called. "I think I've got him."

"Who?" demanded Jack.

"Davis!" said Frank quietly. I'll bet a pretty red apple that man is Davis."

"By Jove!" said Jack. "I wonder—now what would he be doing here?"

"I don't know," replied Frank, "but I feel sure that's who it is. Come on. Let's go after him. We'll lose him in a minute."

Even as he spoke the man he felt sure was Davis turned a corner. Not waiting for Jack to agree, Frank hurried after him. Jack followed.