“It is false!” roared Heron, who already at the suggestion was foaming at the mouth, and had jumped up from his chair, standing at bay as if prepared to fight for his life.

“False, is it?” retorted Chauvelin calmly; “then be not so quick, friend Heron, in slashing out with senseless denunciations right and left. You’ll gain nothing by denouncing any one just now. This is too intricate a matter to be dealt with a sledge-hammer. Is any one up in the Tower at this moment?” he asked in quiet, business-like tones.

“Yes. Cochefer and the others are still there. They are making wild schemes to cover their treachery. Cochefer is aware of his own danger, and Lasniere and the others know that they arrived at the Tower several hours too late. They are all at fault, and they know it. As for that de Batz,” he continued with a voice rendered raucous with bitter passion, “I swore to him two days ago that he should not escape me if he meddled with Capet. I’m on his track already. I’ll have him before the hour of midnight, and I’ll torture him—yes! I’ll torture him—the Tribunal shall give me leave. We have a dark cell down below here where my men know how to apply tortures worse than the rack—where they know just how to prolong life long enough to make it unendurable. I’ll torture him! I’ll torture him!”

But Chauvelin abruptly silenced the wretch with a curt command; then, without another word, he walked straight out of the room.

In thought Armand followed him. The wild desire was suddenly born in him to run away at this moment, while Heron, wrapped in his own meditations, was paying no heed to him. Chauvelin’s footsteps had long ago died away in the distance; it was a long way to the upper floor of the Tower, and some time would be spent, too, in interrogating the commissaries. This was Armand’s opportunity. After all, if he were free himself he might more effectually help to rescue Jeanne. He knew, too, now where to join his leader. The corner of the street by the canal, where Sir Andrew Ffoulkes would be waiting with the coal-cart; then there was the spinney on the road to St. Germain. Armand hoped that, with good luck, he might yet overtake his comrades, tell them of Jeanne’s plight, and entreat them to work for her rescue.

He had forgotten that now he had no certificate of safety, that undoubtedly he would be stopped at the gates at this hour of the night; that his conduct proving suspect he would in all probability he detained, and, mayhap, be brought back to this self-same place within an hour. He had forgotten all that, for the primeval instinct for freedom had suddenly been aroused. He rose softly from his chair and crossed the room. Heron paid no attention to him. Now he had traversed the antechamber and unlatched the outer door.

Immediately a couple of bayonets were crossed in front of him, two more further on ahead scintillated feebly in the flickering light. Chauvelin had taken his precautions. There was no doubt that Armand St. Just was effectually a prisoner now.

With a sigh of disappointment he went back to his place beside the fire. Heron had not even moved whilst he had made this futile attempt at escape. Five minutes later Chauvelin re-entered the room.

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CHAPTER XX. THE CERTIFICATE OF SAFETY