know nothing?"
"Nothing, monsieur."
Duvall began to chew the end of his cigar in vexation. Of all the absurd expeditions, this seemed the most absurd. Presently he turned to Dufrenne and again spoke. "In your repairs upon this snuff box, to which so great a value is apparently attached, did you observe anything about it of a peculiar nature – anything to make its loss a matter of such grave importance?"
"Nothing, monsieur. It is a small, round ivory box, with a carved top, quite plain and of little value – "
"But the contents? What, perhaps, did Monsieur de Grissac carry within it?"
"Snuff, monsieur. It was quite half-full when it came to me, last April. Monsieur de Grissac was in Paris at the time. The spring which actuates the top had become broken – the box is very old, monsieur – and I was required to repair it. That is all I know."
"And you close your shop, and leave Paris without a word, just for a thing like that?"
Dufrenne straightened his bent shoulders, and his eyes sparkled. "When France calls me, monsieur, I have nothing to do but obey."
His reply seemed almost in the nature of a reproof. Duvall made no further comment and relapsed into a brown study. After all, he knew, even in his irritation, that Monsieur Lefevre had not sent him upon this adventure without some real and very good reason. Yet try as he would, he was unable to imagine what this reason could be. Of course, there must have been something inside the box, his final conclusion was, else why should any one have stolen it? No doubt the Ambassador, Monsieur de Grissac, would acquaint him with the truth of the affair. Possibly the box may have contained papers of great value – though why one should choose such a place for the concealment of valuable papers he could not imagine. The whole affair seemed shrouded in mystery, and no amount of speculation on his part, apparently, would throw any light upon it. He lay back in his seat, dozing, and thinking of Grace and their interrupted honeymoon.
At Boulogne they transferred to the boat for Folkstone, and after a quiet passage, found themselves on board the train for London. They reached Charing Cross early in the evening, and taking a cab, drove at once to Monsieur de Grissac's residence in Piccadilly, opposite Green Park.
CHAPTER II
While Richard Duvall was thus flying toward Boulogne, racking his brains in a futile attempt to discover the reasons for his sudden and unexpected dispatch to London, Grace, his wife, equally mystified, was proceeding in the direction of Brussels.
The reasons for her going to Brussels were no more clear to her than were Richard's, to him. At the conclusion of the wedding breakfast which had followed her simple marriage to Duvall, she had gone to the pension at which she had been living, to await her husband's return. She had not then understood the mysterious message which had summoned him to the Prefect's office, nor, for that matter, had he, but he had assured her that he would return in a short while, and that had been enough for her.
Her patient waiting had been finally terminated by the arrival of the Prefect himself, who had explained with polite brevity that a matter of the gravest importance had made it necessary for him to send Richard at once to London.
The girl's grief and alarm had been great – Monsieur Lefevre had at last, however, succeeded in convincing her that Richard could not under the circumstances have done anything but go. His position as an assistant to Lefevre, and more particularly the friendship which existed between them, made it imperative for him to come to the Prefect's assistance in this crisis.
What the crisis was, Grace did not learn. She had insisted upon following Richard, upon being near him, upon assisting him, should opportunity offer, and Monsieur Lefevre, seized with a sudden inspiration, had dispatched her to Brussels, with the assurance that she would not only see her husband very soon, but might be able to render both him, and France, a very signal service.
Grace had accepted the mission; her desire to be near Richard was a compelling motive, and as a result she found herself flying toward the Belgian frontier, on an early afternoon express, with no idea whatever of what lay before her, and only a few words, written by Monsieur Lefevre upon a page torn from his notebook, to govern her future actions.
She luckily was able to find a compartment in one of the first-class carriages where she could be alone, and sank back upon the cushioned seat, determined to face whatever dangers the future might hold, for the sake of her husband.
Her mind traveled, in retrospect, over the events of the past few months – the conspiracy against her, by her step-uncle, Count d'Este, by which he had so nearly deprived her of the fortune left to her by her aunt, and the striking way in which his plans had been upset by Richard Duvall. She had loved him at their very first meeting, and now that they had become husband and wife, she loved him more than ever. It is small wonder that the thought of the way in which he had been suddenly torn from her, on the eve of their wedding journey, brought tears to her eyes.
Presently she regained her composure and looked at the sheet of paper which the Prefect had handed to her. It contained but a few words: "Proceed to the Hotel Metropole, Brussels. Take a room in the name of Grace Ellicott, and wait further instructions." That was all – no hint of how or when she and Richard were to meet, or what had been the cause of their separation. Once more the cruelty of the situation brought tears to her eyes. While feeling in her handbag for her handkerchief, she drew out the small silver ring which the Prefect had handed to her at the last moment. "Trust any one," he had said, "who comes to you with such a token as this." She examined the ring carefully, but the singular device worked in gold upon the silver band, meant nothing to her. At length she placed the ring carefully upon her finger, and proceeded to cover it by putting on her glove.
For a long time she sat, speculating upon the strange workings of fate, which doomed her to be thus speeding alone to Brussels, instead of to Cherbourg, en route to America, with Richard by her side. The sight of two lovers, who boarded the train at St. Quentin, increased her dissatisfaction. They came into the compartment, evidently quite wrapped up in each other, and even the presence of a third person did not prevent them from holding each other's hands under the cover of a friendly magazine, and gazing at each other with longing eyes. Grace was quite unable to endure the sight of their happiness – she turned away and buried herself in her thoughts.
Presently the adventure-loving side of her nature began to assert itself. Richard had been sent on a mission of the greatest importance – one involving, Monsieur Lefevre had told her, the honor of both his country and himself. And she was to share it – to take part in its excitement, its dangers. The thought stirred all her love of the mysterious, the unusual. After all, since she had become the wife of a man whose profession in life was the detection of crime, should she not herself take an interest, an active part in his work, and thereby encourage and assist him? The thought made her impatient of all delay – she felt herself almost trying to urge the train to quicker motion – she was glad when at last they roared into the station at Brussels.
Grace had never before been in the Belgian capital, but she summoned a cab, and proceeded without difficulty to the Hotel Metropole. Here she was assigned to a small suite, and at once began to unpack the steamer trunk which was the only baggage she had brought with her. It was after four o'clock when she had completed this task, and had removed the stains of travel and changed her gown. As she came into the tiny parlor which formed the second of the two rooms of the suite, she heard a tapping at the door, and upon opening it, discovered one of the hotel maids, waiting outside with fresh towels. The girl came in, and busied herself setting to rights the toilet articles on the washstand. Grace, who was engaged in listlessly watching the traffic in the square outside, paid no attention to her. Presently she heard the girl come in from the bedroom, and inquire if there was anything else that she could do for her. "Nothing," she replied, without turning. The maid, however, did not leave the room, but stood near by, observing her. Grace faced about. "That is all," she said sharply.
"I have something to say to you, mademoiselle," the girl whispered in a low tone, as she took a step forward. "A message from Monsieur Lefevre."
"Monsieur Lefevre? You?"
"Yes, mademoiselle, I am in his confidence. I know the purpose of your visit here, and I come to give