"Then The Shadow, if he is interested, cannot know," Benson concluded.
"I think he followed me last night," said Delmuth seriously. "That was when I had my first suspicion. But I played the game the way I always play it. I tore up the dope sheet and left an empty envelope in my pocket. If The Shadow found it, he will have a lot of guessing to do!"
"You look worried, Delmuth," said Benson quietly. "That is a mistake. You may be worrying over nothing. On the contrary, if it is not your imagination — if you are really being followed — " Delmuth stopped the speaker with a raised hand. As they sat in silence, the suave advertising man listened keenly. Then, he arose from his chair and tiptoed to the door.
He opened it cautiously and stepped quickly out into the hallway. He came back, shrugging his shoulders.
"Thought I heard a noise," he declared. "I am worried, Benson, but I have cause to be. It gives me the creeps, and I've never had them before.
"I tell you, again, we must be careful!"
The old man nodded thoughtfully. He did not appear to be worried, but he began to adopt shrewd tactics.
He looked about the room as though forming a plan. He peered from the window; then went to the door and made a brief inspection. After that, he traveled to an inner room and returned.
"If The Shadow is spying here," he said, "you can be sure that he is a man of miracles.
The hallway is empty. There is no one in the inner room. As for the window — we are on the fifth floor."