They came without a second invitation across the roof, and with them safely away from the house I breathed more freely. Down in the den I fulfilled my promise, which Johnson drank to the toast, "Coming through the rye." He examined my gun rack with the eye of a connoisseur, and even when he was about to go he cast a loving eye back at the weapons.
"Ever been in the army?" he inquired.
"No," I said with a bitterness that he noticed but failed to comprehend. "I'm a chocolate cream soldier—you don't read Shaw, I suppose. Johnson ?"
"Never heard of him," the detective said indifferently. "Well, good night, Mr. Blakeley. Much obliged." At the door he hesitated and coughed.
"I suppose you understand, Mr. Blakeley," he said awkwardly, "that this—er—surveillance is all in the day's work. I don't like it, but it's duty. Every man to his duty, sir."
"Sometime when you are in an open mood, Johnson," I returned, "you can explain why I am being watched at all."