"Isn't that the locality which contains the Secret House?"
"I've heard something about the place," said Mr. Farrington with a little smile.
"C. D.," said the detective, making for the door.
"What?"
"Lady Constance Dex's initials, I mean," said T. B.
"Yes—why?"
"Those are the initials on the gold scent bottle, that is all," said the detective. "Good night."
He left Mr. Farrington biting his finger nails—a habit he fell into when he was seriously perturbed.