criminals," pursued the master mechanic. "The superintendent wired me to-day to have one road detective start out on a certain case. I wired back that Mr. Adair was engaged in a special case in the city. The return was to relieve you of regular duty and have you report at Afton this afternoon."
Ralph nodded to indicate that he understood, but he said:
"I do not like these interruptions to routine duty, but I suppose the company knows where it most needs a fellow."
Ralph went down the road shortly after noon. He reached Afton and reported at once to the assistant superintendent.
"I have ordered a substitute fireman on the Mail for a week, Fairbanks," said that official. "I think we shall engage your services for that length of time."
"Is it some particular case, sir?" asked Ralph.
"A very important case, yes. We seem to have got rid of incompetent employes and strikers, thanks to you and others who stood by the company in time of trouble. There is one thing, however, that is bothering us. It bothers every road more or less, but we won't have it."
Ralph waited for a further explanation.
"Freight thieves, Fairbanks," continued the
