The thought of Queen Marie Antoinette in the Conciergerie prison with the daily, hourly humiliation and shame which this constant watch imposed upon her womanly pride and modesty, flashed suddenly across Marguerite's mind, and a deep blush of horror rapidly suffused her pale cheeks, whilst an almost imperceptible shudder shook her delicate frame.

Perhaps, as in a flash, she had at this moment received an inkling of what the nature of that terrible “either—or” might be, with which Chauvelin was trying to force an English gentleman to dishonour. Sir Percy Blakeney's wife had been threatened with Marie Antoinette's fate.

“You see, Madame,” said her cruel enemy's unctuous voice close to her ear, “that we have tried our humble best to make your brief sojourn here as agreeable as possible. May I express a hope that you will be quite comfortable in this room, until the time when Sir Percy will be ready to accompany you to the 'Day-Dream.'”

“I thank you, sir,” she replied quietly.

“And if there is anything you require, I pray you to call. I shall be in the next room all day and entirely at your service.”

A young orderly now entered bearing a small collation—eggs, bread, milk and wine—which he set on the central table. Chauvelin bowed low before Marguerite and withdrew. Anon he ordered the two sentinels to stand the other side of the doorway, against the wall of his own room, and well out of sight of Marguerite, so that, as she moved about her own narrow prison, if she ate or slept, she might have the illusion that she was unwatched.

The sight of the soldiers had had the desired effect on her. Chauvelin had seen her shudder and knew that she understood or that she guessed. He was now satisfied and really had no wish to harass her beyond endurance.

Moreover, there was always the proclamation which threatened the bread-winners of Boulogne with death if Marguerite Blakeney escaped, and which would be in full force until Sir Percy had written, signed and delivered into Chauvelin's hands the letter which was to be the signal for the general amnesty.

Chauvelin had indeed cause to be satisfied with his measures. There was no fear that his prisoners would attempt to escape.

Even Collot d'Herbois had to admit everything was well done. He had read the draft of the proposed letter and was satisfied with its contents. Gradually now into his loutish brain there had filtrated the conviction that Citizen Chauvelin was right, that that accursed Scarlet Pimpernel and his brood of English spies would be more effectually annihilated by all the dishonour and ridicule which such a letter written by the mysterious hero would heap upon them all, than they could ever be through the relentless work of the guillotine. His only anxiety now was whether the Englishman would write that letter.