"While you sat upon the step did you see or hear anything?"
"I heard Dr. Morse talking."
"With whom?"
"I don't know. I heard a second voice, but not distinctly. I thought it must be Miss Stella or Mr. Warwick."
Here the girl drew a deep, audible breath, and Ashton-Kirk saw the old woman fix her sharp eyes upon her.
"But," resumed Nanon, "Miss Stella tells me that it was not she."
"You went directly from the library to the hall door after speaking to Dr. Morse, you say?"
"Yes, sir."
"Did you close the door while you sat upon the step?"
"No; I left it open, thinking to hear if the doctor rang again."