The building superintendent was inclined to argue, but Bob cut him short.
“This is no time for words,” he said. “Do as you’re told or I’ll file a charge against you for interfering with the work of a federal officer.”
Actually Bob didn’t know whether he had that power or not, but the words sounded well and the threat did what was intended—the superintendent changed his tone and agreed to halt the burning of any more wastepaper or refuse.
Bob turned back from the telephone and Jacobs looked at him with a brighter face.
“I don’t know what’s going to happen to me,” he said, “but I feel better for having told you.”
“I’ll help you all I can,” promised Bob heartily, turning to call for Lieutenant Gibbons.
The intelligence officer opened the door almost instantly and Condon Adams and Tully Ross crowded in close behind him.
“Well, can you solve the mystery for us now?” asked Adams, his voice heavy with sarcasm.
“I think so,” replied Bob.
“Let’s have it, then.”