“Harley!” I said. “Harley! what has happened?”

“Nothing, nothing. I am sorry to have to disturb your beauty sleep, but in the absence of Innes I am compelled to use you as a dictaphone, Knox. I like to record impressions while they are fresh, hence my having awakened you.”

“But what has happened?” I asked again, for my brain was not yet fully alert.

“No, don’t light up!” said Harley, grasping my wrist as I reached out toward the table-lamp.

His figure showed as a black silhouette against the dim square of the window.

“Why not?”

“Well, it’s nearly two o’clock. The light might be observed.”

“Two o’clock?” I exclaimed.

“Yes. I think we might smoke, though. Have you any cigarettes? I have left my pipe behind.”

I managed to find my case, and in the dim light of the match which I presently struck I saw that Paul Harley’s face was very fixed and grim. He seated himself on the edge of my bed, and: