‘It is dangerous,’ replied the Marchioness.

‘It is necessary,’ added Sainte-Croix. And after a moment’s pause he continued: ‘The man Lachaussée, whom you have seen with me, is mine, body and soul. I can in an instant cause to fall the sword which hangs over his head. Your brothers’ occupation of Offemont will require an increase of their establishment: can we not get Lachaussée into their service? They will then be comparatively in our hands.’

‘Is he to be trusted?’

‘He is wily as an adder, and as fatal in his attack, to those who have not charmed him. I will put this scheme in train to-morrow. He only awaits my word to proceed.’

‘It must be done,’ replied the Marchioness.

And then she uttered a long deep sigh, the relief to her overcharged heart being accompanied by a low moan of intense mental pain—not from remorse, but utter despondency, in the reaction of her spirits, and the apparent blackness of the prospect before her. The next moment, as if ashamed of the demonstration of her feelings, she started up from the couch on which they had been sitting, and prepared to return to the principal room. As she advanced towards the door, she took a brilliant jewelled chain from her neck, and placed it in Gaudin’s hands.

‘Whilst we have an opportunity,’ she said, ‘let me give you this carcanet. It is of some value, and by selling it at the Quai des Orfevres you can provide for your present superficial expenses.’

Gaudin did not hesitate to take the costly ornament. He knew the necessities of his position; besides, all finer feelings of delicacy had long been merged in the gulf of his darker passions. He placed the chain in the pocket of his cloak, and went towards the corridor. But as they were about to pass out, a portion of a large book-case, masking a door with imitations of the backs of volumes, was thrown open, and Exili stood before them.

Marie uttered a slight cry of alarm, as she started at the sudden apparition. Sainte-Croix seized the handle of his sword, and partly drew it from its scabbard; but the moment he recognised the physician he returned it.

‘Exili!’ he exclaimed.