Gatton stared at me almost savagely, then threw himself back into the armchair from which he had arisen, and was just reaching out for the tobacco-jar which I had pushed before him, when a bell rang. I heard Coates opening the front door, and wondering whom this late visitor could be, I stared questioningly at the Inspector.

Came a tap upon the door.

"Come in," I cried.

Coates entered, and standing stiffly in the doorway:

"Dr. Damar Greefe!" he announced.

Unmoved, he stood aside; and whilst Gatton and I slowly rose from our chairs in a state of utter stupefaction, the Eurasian doctor entered, and stood, a tall, gaunt figure, towering over the burly form of Coates in the doorway!

His hawk eyes blazed feverishly and his face was drawn and haggard, whilst I observed with a sort of horrified wonder that he seemed to be almost too weak to stand. For, as Gatton and I came finally to our feet, he clutched at the edge of a bookcase, but recovered himself, bowed in that stately fashion which immediately translated me in spirit to the strange library in the Bell House, and:

"Gentlemen," he said, and his harsh voice rose scarcely above a whisper—"pray resume your seats. I shall not detain you long."