He tried the closed door that led to the side corridor. He inspected the other inner office.
Satisfied that he was absolutely alone, he sat down and waited.
As minutes ticked by. Delmuth continued to have the feeling that he was being watched.
He felt sure that it must be his own imagination. It annoyed him, yet he smiled.
If his intuition should be correct, it meant that The Shadow was close at hand. That could be turned to Delmuth's purpose.
The telephone rang. Sidney Delmuth answered it. His words were simply replies to statements.
"Yes," he said. "Yes… Good…Yes… A good idea… You'll call then… Fine." Delmuth hung up the receiver. He turned suddenly and faced the door that led to the side corridor. Had that door opened softly while his back was turned? Delmuth tried the door. It was still locked.
Yet it was possible that The Shadow might have entered unseen, and the thought made Delmuth cautious. He repressed the desire to make another survey of the premises. He realized that if The Shadow had actually entered this place, there might be danger.
Delmuth, cagey as well as daring, was sure that The Shadow would not reveal himself unless compelled to do so. But should the issue be forced, the man of the dark would have to strike. In that brief telephone conversation, Sidney Delmuth had learned that Shamlin and Harmon were well on their way to Massachusetts. They were traveling a circuitous route, to mislead all followers. They had just informed Delmuth that they were on the watch, and would be prepared if they encountered interference. The telephone rang again. Once more Delmuth answered. Again, his words were simply responses to statements from another party.
But this time, a thin smile played beneath the waxed mustache. Delmuth was learning something very much to his liking.