"Dash it!" said Lupin. "She's after the crystal stopper too! The matter is becoming more complicated daily; there's no doubt about it."

But, on renewing his observation of the visitor, he was astounded to note the sudden and unexpected expression of her countenance, a terrible, implacable, ferocious expression. And he saw that her hand was continuing its stealthy progress round the table and that, with an uninterrupted and crafty sliding movement, it was pushing back books and, slowly and surely, approaching a dagger whose blade gleamed among the scattered papers.

It gripped the handle.

Daubrecq went on talking. Behind his back, the hand rose steadily, little by little; and Lupin saw the woman's desperate and furious eyes fixed upon the spot in the neck where she intended to plant the knife:

"You're doing a very silly thing, fair lady," thought Lupin.

And he already began to turn over in his mind the best means of escaping and of taking Victoire with him.

She hesitated, however, with uplifted arm. But it was only a momentary weakness. She clenched her teeth. Her whole face, contracted with hatred, became yet further convulsed. And she made the dread movement.

At the same instant Daubrecq crouched and, springing from his seat, turned and seized the woman's frail wrist in mid-air.

Oddly enough, he addressed no reproach to her, as though the deed which she had attempted surprised him no more than any ordinary, very natural and simple act. He shrugged his shoulders, like a man accustomed to that sort of danger, and strode up and down in silence.

She had dropped the weapon and was now crying, holding her head between her hands, with sobs that shook her whole frame.

He next came up to her and said a few words, once more tapping the table as he spoke.

She made a sign in the negative and, when he insisted, she, in her turn, stamped her foot on the floor and exclaimed, loud enough for Lupin to hear:

"Never!... Never!... "

Thereupon, without another word, Daubrecq fetched the fur cloak which she had brought with her and hung it over the woman's shoulders, while she shrouded her face in a lace wrap.

And he showed her out.

Two minutes later, the garden-gate was locked again. "Pity I can't run after that strange person," thought Lupin, "and have a chat with her about the Daubrecq bird. Seems to me that we two could do a good stroke of business together."

In any case, there was one point to be cleared up: Daubrecq the deputy, whose life was so orderly, so apparently respectable, was in the habit of receiving visits at night, when his house was no longer watched by the police.

He sent Victoire to arrange with two members of his gang to keep watch for several days. And he himself remained awake next night.

As on the previous morning, he heard a noise at four o'clock. As on the previous morning, the deputy let some one in.

Lupin ran down his ladder and, when he came to the free space above the shutters, saw a man crawling at Daubrecq's feet, flinging his arms round Daubrecq's knees in frenzied despair and weeping, weeping convulsively.