"I don't know what to think."
"I can give you my word I was not near the offices from four o'clock yesterday afternoon until I came this morning, after you."
"Have you spoken of the safe combination to anybody?"
"No, sir."
"Did you put the combination down in writing?" asked Mr. Wilder.
"No, I never did anything of that sort. The combination was an unusually easy one, as you know."
"Yes, far too easy for our good," groaned Mr. Rush. Then he gazed at the four boys curiously. "What brought you here?" he asked.
"We thought we might know something of this affair," said Dick, and told his story.
"There may be something in that," said the detective. "Especially if those men fail to turn up at that tenement again."
"Did you mention a man named Mooney?" cried Fredericks.
"I did."
"Do you know this Mooney?" put in Mr. Wilder to the bookkeeper.
"Subrug, the janitor, has a brother-in-law named Mooney—a wild kind of a chap who used to hang around more or less."
