"She's thinking about the truth," Paredes said tensely. "I've always heard of such things. So have you. You've read of them, if you read at all. India is full of it. It goes back to ancient Egypt—the same person simultaneously in two places—the astral body—whatever you choose to call it. It's the projection of one's self whether consciously or unconsciously; perhaps the projection of something that retains reason after an apparent death. You heard him. He didn't seem to walk. He doesn't remember leaving the room, which was locked on the inside. His descent of the stairs was without motion as we know it. He had gone some distance before his mind consciously directed the movement of this active image of Silas Blackburn, while the double from which it had sprung lay apparently dead in the old room. You notice he shrank from shaking hands, and he slept until we hid away the shell. What disintegration and coming together again has taken place since we buried that shell in the old graveyard? If his friend had shaken hands with him would he have grasped emptiness? Did his normal self come back to him when the shell was put from our sight, and he awakened? These are some of the questions we must answer."

"You've a fine imagination, Mr. Paredes," Robinson said dryly.

His fat face, nevertheless, was bewildered, and in the eyes, surrounded by puffy flesh, smouldered a profound uncertainty.

"I wish Groom were here," Paredes was saying. "He would agree with me. He would know more about it than I."

Robinson threw back his shoulders. He turned to Rawlins with his old authority. The unimaginative detective had stood throughout, releasing no indication of his emotions; but as he raised his hand now to an unnecessary adjustment of his scarf pin, the fingers were not quite steady.

"Telephone this man Waters," Robinson directed. "Then get in communication with the office and put them on that end."

Rawlins walked away. Robinson apologized to Silas Blackburn with an uneasy voice.

"Got to check up what I can. Can't get anywhere with these things unless you make sure of your first facts. I daresay Waters's story will tally with yours."

Blackburn nodded. Graham cleared his throat.

"Now perhaps we may ask that very important question. The day Mr. Blackburn called at your office in Smithtown he told Howells he was afraid of being murdered. According to Howells, he said: 'My heart's all right. It won't stop yet awhile unless it's made to. So if I'm found cold some fine morning you can be sure I was put out of the way.'"