"When?" I asked.
There was a pause.
"Is that you, Arthur?" came the question.
"About the bag," I said, then paused. "Are you there?"
No answer. My voice had evidently betrayed me. The woman at the other end had discovered that she was speaking to the wrong man. I looked at the Chesterfield. There was no bag of any kind upon it now. Then I telephoned to Quarles, telling him there was a mysterious case for him to investigate.
"Had your master any other visitors to-day?" I asked casually, turning to Masini.
"Not to my knowledge. All the afternoon I was out."
"Where were you?"
"Out for my master. I took a parcel to a gentleman at Harrow."
"To whom?"