I dared not allow her time to say a word more. She tried to hold me again. I unclasped her hands, and was out of the room in a moment. The boy below heard me on the stairs, and opened the hall-door. I jumped into the cab before the driver could get off the box. “Forest Road, St. John’s Wood,” I called to him through the front window. “Double fare if you get there in a quarter of an hour.”

“I’ll do it, sir.” I looked at my watch. Eleven o’clock. Not a minute to lose.