Mr. Jordan gasped in astonishment. Only a hundred dollars for what should be worth a great deal more than that!

Meanwhile, in the next room, Joe had decided on a plan of action.

“Now that we are convinced that this man is the thief, we are free to do almost anything,” he began, speaking in a very low whisper.

The others looked at him inquiringly.

“My scheme is this,” Joe continued, “I’ll go out——”

“If you’re doing anything, I’m in it with you,” interrupted Bob.

“All right, then. We’ll go out to this man’s car. It’s probably parked in front——”

“Perhaps he came on a street car,” suggested Mr. Holton.

“In that case, my plan won’t work,” Joe said. “But if his car is out there, we’ll look inside it and see if we can find anything that will tell us where he lives. Then we’ll come back. What do you say?”

“Suits me,” returned Bob at once. “We’ll find something if there’s anything to be found.”