“Just as I was closing my examination, the doctor arrived. I show him my drunkards; and at once he recognizes that I have guessed correctly, and that these men have been put asleep by means of one of those narcotics of which certain thieves make use to rob their victims. A potion, which he administers to them by forcing their teeth open with a knife, draws them from this lethargy. They open their eyes, and soon are in condition to reply to my questions. They are furious at the trick that has been played upon them; but they do not know the man. They saw him, they swear to me, for the first time that very morning; and they are ignorant even of his name.”

There was no doubt possible after such complete explanations. The commissary had seen correctly, and he proved it.

It was not of a vulgar accident that Mlle. Lucienne had just been the victim, but of a crime laboriously conceived, and executed with unheard-of audacity,—of one of those crimes such as too many are committed, whose combinations, nine times out of ten, set aside even a suspicion, and foil all the efforts of human justice.

M. de Tregars knew now what had taken place, as clearly as if he had himself received the confession of the guilty parties.

A man had been found to execute that perilous programme,—to make the horses run away, and then to run into some heavy wagon. The wretch was staking his life on that game; it being evident that the light carriage must be smashed in a thousand pieces. But he must have relied upon his skill and his presence of mind, to avoid the shock, to jump off safe and sound; whilst Mlle. Lucienne, thrown upon the pavement, would probably be killed on the spot. The event had deceived his expectations, and he had been the victim of his rascality; but his death was a misfortune.

“Because now,” resumed the commissary, “the thread is broken in our hands which would infallibly have led us to the truth. Who is it that ordered the crime, and paid for it? We know it, since we know who benefits by the crime. But that is not sufficient. Justice requires something more than moral proofs. Living, this bandit would have spoken. His death insures the impunity of the wretches of whom he was but the instrument.”

“Perhaps,” said M. Tregars.

And at the same time he took out of his pocket, and showed the note found in Vincent Favoral’s pocket-book,—that note, so obscure the day before, now so terribly clear.

“I cannot understand your negligence. You should get through with that Van Klopen affair: there is the danger.”

The commissary of police cast but a glance upon it, and, replying to the objections of his old experience rather more than addressing himself to M. de Tregars,