“We are establishing the facts of the proceedings, not the sense of them,” returned the Coroner, a little testily, for he was at his wits’ end even to make a beginning in this strange case.

“At least,” he went on, “we have the facts and the approximate time of the crime; have you, Miss Stuart, any suspicion of who the murderer can be?”

The question was shot out suddenly. If its intent was to startle the witness, it certainly succeeded. Pauline Stuart turned even whiter than she had been, and she caught her breath quickly and audibly as she flashed a frightened glance at Gray Haviland. It was by no means an accusing glance, though many who saw it, eager for a direction in which to cast their suspicions, took it for such.

But Pauline controlled herself immediately. “Certainly not,” she said coldly. “That is, I can have no suspicion of the murderer’s identity. It was, of course, a midnight intruder, of the criminal class. I have no individual acquaintances who use or possess the weapon that was employed in this crime.”

“The black-jack is an auxiliary only. The poison may have been administered by one not versed in the ways of professional criminals. You admit that, I suppose?”

“It is no doubt true,” said Pauline, icily, “that poison may be given by a person not belonging to the criminal classes. I fail to see, however, how that fact affects the matter in hand.”

“It may well affect it. Since Miss Carrington was killed by a deadly poison, we must conclude that the black-jack assault was made with the intention of concealing the poisoning and making it appear that the blow caused the death. There seems to me no other way to account for the conditions that confront us.”

A silence followed this. Its truth was patent to everybody. Clearly, the poisoner had delivered the blow, for no one else would attack a victim already dead. And a plausible reason would be the hope that the poisoning would pass unnoticed in view of the other apparent cause of death.

“And it points to the work of an amateur,” went on Scofield; “a professional criminal would know that the autopsy would disclose the earlier crime.”

Pauline lost her nerve. “I don’t know anything about it!” she cried, and sank back into her seat, her face buried in her hands.