"Ah, ça, my good Carteret," he said to the commissary somewhat tartly, "when am I and Madame la Marquise to be free from this insolent interference? Since when are the loyal subjects of His Majesty to be treated as if they were criminals?"

The worthy M. Carteret felt hot and cold all over. He had an enormous regard for M. le Marquis de Trévargan and a wholesome terror of the Minister's secret agent, and between the two he did not know to which saint he should pray for protection.

"Loyalty is a matter of degree," here interposed the Man in Grey in his usual monotone; "as Monsieur le Marquis well knows."

"I only know, Monsieur," retorted the Marquis haughtily, "that certain aspersions have been cast upon my good name, chiefly on the strength of a forged letter——"

"A forged letter, Monsieur le Marquis?" interposed the Man in Grey with a smile. "Monsieur de Romorantin has owned to its authenticity."

"Monsieur de Romorantin was scared out of his wits," rejoined the Marquis, "or he never would have been taken in by such a clumsy forgery. And," he added haughtily, "I challenge you to produce it, so that at least I might have a chance of proving the truth of what I say."

"It is just because the letter has been stolen," stammered M. Carteret, "and the messenger murdered that we are here to-day, Monsieur le Marquis."

While he spoke a door at the farther end of the room opened, and a tall, handsome woman appeared upon the threshold. When the commissary finished speaking, she broke into a ringing laugh.

"A pretty story indeed!" she said harshly. "A monstrous accusation hurled at Monsieur le Marquis de Trévargan! And when he demands to be confronted with proofs of his guilt, these proofs are said to be destroyed, whilst a vague hint of murder goes to swell the iniquitous charge. A pretty pass, indeed!" she continued, as with stately steps she advanced into the room. "Fortunately His Majesty has some friendship for Monsieur le Marquis and myself, and we can appeal to him to punish those who have put this affront upon us."

"Your pardon, Madame la Marquise," answered the Man in Grey, as soon as she had finished her impassioned tirade. "Monsieur le Commissaire said that the letter had been stolen; he did not say that it had been destroyed."