"Everything is fixed," he said. "You would have heard from me if there had been a hitch.
I couldn't talk when you called me about Grady. Something was happening — that's why I told you to wait. I knew I could explain better when I came here."
"What is the matter?" questioned the old man.
"I'm being followed," declared Delmuth. "Followed by a man whom I cannot see!" The old man smiled at the paradoxical statement. He was wondering how Delmuth knew he was being followed, if he could not observe the follower. The smile turned to a serious look, however, for the old man could tell that Delmuth was in earnest.
"So far, Benson," said the advertising man, "I've slipped it over on this fellow. I suspected he was on my trail when I came into my apartment this evening. I made that call to Philadelphia by using the phone the moment that I came in.
"When I talked to Chadwick, I was lucky enough to put through a quick call. Even at that, I'm not sure that I was not overheard. I took the precaution of carrying the telephone into the hall closet."
"You think the man who was trailing you was that close?" Benson asked.
"If he's who I think he is, he might have been at my elbow without my seeing him!"
"Who do you think he is?"
"The Shadow!"