“And wrecked his own plant!” exclaimed the assistant superintendent.

“Incredible!” murmured the head official at his side.

“You deserve something for ferreting that out,” declared Adair approbatively. “There is your evidence, gentlemen, it seems,” he added, pushing the documents over to the others.

“This is getting pretty serious,” observed the superintendent.

“I will hunt up the contractor,” said Adair, making a note. “I have men looking for Grizzly and Mason. The other suspects in the service are being shadowed. I think, with the start this famous young friend of ours, Fairbanks, has given us, there will be a general clearing up of the situation in a short time. Dallas is in the company and confidence of the conspirators. There will be some arrests and confessions within a few days. I think I can safely promise that.”

Ralph listened attentively while the others engaged in a general discussion of the situation. It was arranged that he should resume his position at headquarters in the office of the chief train dispatcher. Adair was to go down the line for the avowed purpose of getting more closely in touch with his faithful young assistant, Zeph Dallas. The latter, through the exercise of a keen intelligence and perseverance, seemed to proudly hold the key to the entire situation, and Ralph was glad of it.

“There is one other subject of importance,” remarked the road officer, as the superintendent arose and the conference seemed as on end.

“What is that?”

“The pay car affair.”

“I thought that was all arranged.”