“Three thousand five hundred!” ejaculated Heron involuntarily, and this time even his eyes lost their cruelty; they joined issue with the mouth in an expression of hungering avarice.

“Two little zeros added to the thirty-five, which is all you would get for handing me over to your accursed Tribunal,” said de Batz, and, as if thoughtlessly, his hand wandered to the inner pocket of his coat, and a slight rustle as of thin crisp paper brought drops of moisture to the lips of Heron.

“Leave me alone for three weeks and the money is yours,” concluded de Batz pleasantly.

There was silence in the room now. Through the narrow barred window the steely rays of the moon fought with the dim yellow light of the oil lamp, and lit up the pale face of the Committee’s agent with its lines of cruelty in sharp conflict with those of greed.

“Well! is it a bargain?” asked de Batz at last in his usual smooth, oily voice, as he half drew from out his pocket that tempting little bundle of crisp printed paper. “You have only to give me the usual receipt for the money and it is yours.”

Heron gave a vicious snarl.

“It is dangerous, I tell you. That receipt, if it falls into some cursed meddler’s hands, would send me straight to the guillotine.”

“The receipt could only fall into alien hands,” rejoined de Batz blandly, “if I happened to be arrested, and even in that case they could but fall into those of the chief agent of the Committee of General Security, and he hath name Heron. You must take some risks, my friend. I take them too. We are each in the other’s hands. The bargain is quite fair.”

For a moment or two longer Heron appeared to be hesitating whilst de Batz watched him with keen intentness. He had no doubt himself as to the issue. He had tried most of these patriots in his own golden crucible, and had weighed their patriotism against Austrian money, and had never found the latter wanting.

He had not been here to-night if he were not quite sure. This inveterate conspirator in the Royalist cause never took personal risks. He looked on Heron now, smiling to himself the while with perfect satisfaction.