The household of the Inn at the Red Oak soon became accustomed to the presence of their new member; indeed, he seemed to them during those bleak winter months a most welcome addition. Except for an occasional traveller who spent a night or a Sunday at the Inn, he was the only guest. He was gregarious and talkative, and would frequently keep them for an hour or so at table as he talked to them of his life in France, and of his adventures in the exciting times through which his country had passed during the last fifty years. He was the cadet, he told them, of a noble family of the VendÉe, the head of which, though long faithful to the exiled Bourbons, had gone over to Napoleon upon the establishment of the Empire. But as for himself—Marie-Anne-TimÉlon-Armand de Boisdhyver—he still clung to the Imperial cause, and though now for many years his age and infirmities had forced him to withdraw from any part in intrigues aiming at the restoration of the Empire, his sympathies were still keen.

When he talked in this strain, of his thrilling memories of the Terror and of the extraordinary days when Bonaparte was Emperor, Dan and Tom would listen to him by the hour. But Mrs. Frost preferred to hear the Marquis's reminiscences of the ancien rÉgime and of the old court life at Versailles. He had been a page, he said, to the unfortunate Marie Antoinette; he would cross himself piously at the mention of the magic name, and digress rapturously upon her beauty and grace, and bemoan, with tears, her unhappy fate. She liked also to hear of the court of Napoleon and of the life of the faubourgs in the Paris of the day. On these occasions the young men were apt to slip away and leave the Marquis alone with Mrs. Frost and Nancy.

For Nancy Monsieur de Boisdhyver seemed to have a fascination. She would listen absorbed to his voluble tales, her bright eyes fixed on his fantastic countenance, her head usually resting upon her hand, and her body bent forward in an attitude of eager attention. She rarely spoke even to ask a question; indeed, her only words would be an occasional exclamation of interest, or the briefest reply.

During the day their noble guest would potter about the house or, when the weather was fine, stroll down to the shore, where he would walk up and down the strip of sandy beach in the lee of the wind hour after hour. Now and then he wandered out upon the dunes that stretched along the Neck; and once, Dan afterwards learned, he paid a call upon old Mrs. Meath who lived by herself in the lonely farmhouse on Strathsey Neck, that was known as the House of the Dunes.

After supper they were wont to gather in Mrs. Frost's parlour or in the old bar before the great hearth on which a splendid fire always blazed; and when the Marquis had had his special cup of black coffee, he would get out his violin and play to them the long evening through. He played well, with the skill of a master of the art, and with feeling. He seemed at such times to forget himself and his surroundings; his bright eyes would grow soft, a dreamy look would steal into them, and a happy little smile play about the corners of his thin pale lips. Obligingly he gave Dan lessons, and often the young man would accompany him, in the songs his mother had known and loved in her youth, when old Peter had come wooing with fiddle in hand.

But best of all were the evenings when the Marquis chose to improvise. Plaintive, tender melodies for the most part; prolonged trembling, faintly-expiring airs; and sometimes harsh, strident notes that evoked weird echoes from the bare wainscoted walls. Mrs. Frost would sit, tears of sadness and of pleasure in her eyes, the kindly homely features of her face moving with interest and delight. Nancy was usually by the table, her sharp little chin propped up on the palms of her hands, never taking her fascinated gaze from the musician. Sometimes Tom would look at her and wonder of what she could be thinking. For certainly her spirit seemed to be far away wandering in a world of dreams and of strange inexpressible emotions. For Tom the music stirred delicate thoughts bright dreams of beauty and of love; the vivid intangible dreams of awakening youth. He had not had much experience with emotion; the story of his love affairs contained no more dramatic moments than the stealing of occasional kisses from the glowing cheeks of Maria Stonywell, the beauty of the Tinterton road, as he had walked back to the old farm with her on moonlight evenings.

They would all be sorry when Monsieur pleaded weariness and bade them good-night. Sometimes his music so moved the old Frenchman that the tears would gather in his faded blue eyes and steal down his powdered cheeks; and then, like as not, he was apt to break off suddenly, drop violin and bow upon his knees, and exclaim, "Ah! la musique! mon Dieu, mon Dieu! elle me rappelle ma jeunesse. Et maintenant—et maintenant!" And then, brushing away the tears he would rise, make them a courtly bow, and hurry out of the room.

Dan alone did not fall under his spell. He and Tom would often talk of their strange guest after they were gone to bed in the great chamber over the dining-room.

"I don't know what it is," Dan said one night, "but I am sorry he ever came to the Inn; I wish he would go away."

"How absurd, old boy!" protested Tom. "He has saved our lives this frightful winter. I never knew your mother to be so cheerful and contented; Nancy seems to adore him, and you yourself are making the most of his fiddle lessons."

"I know," Dan replied, "all that is true, but it is only half the truth. Mother's cheerfulness is costing me a pretty penny, for I can't keep her from ordering the most expensive things,—wines, and the like,—that we can't afford. Maybe Nance adores him, as you say,—she is such a strange wild child; but I have never known her to be so unlike herself. We used to have good times together—Nance and I. But this winter I see nothing of her at all." For the moment Dan forgot his complaint in the tender thought of his foster-sister. "It probably is absurd," he added presently, "but I don't like it; I don't like him, Tom! He plays the fiddle well, I admit but he is so queer and shifty, nosing about, looking this way and that, never meeting your eyes. It's just as though he were waiting, biding his time, for—I don't know what."

"Nonsense, Dan; you're not an old woman."

"It may be, Tom, but I feel so anyway. The place hasn't seemed the same to me since that Frenchman came. I wish he would go away; and apparently he means to stay on forever."

"I think you would miss him, if he were to go," insisted Pembroke, "for my part I'm glad he is here. To tell the truth, Dan, he's been the life of the house."

"He has fascinated you as he has fascinated Mother and Nance," Dan replied. "But it stands to reason, boy, that he can't be quite all right. What does he want poking about in a deserted old hole like Deal?"

"What he has said a thousand times; just what he so beautifully gets—quiet and seclusion."

"Perhaps you are right and I am wrong; but all the same I shall be glad to see the last of him."

The night was one of bright moonlight at the end of February. The bedroom windows were open to the cold clear air. Tom was not sleepy, and he lay for a long time recalling the dreams and emotions that had so stirred him earlier in the evening, as he had listened to the Marquis's playing. He kept whistling softly to himself such bars of the music as he could remember. Dan's chamber faced west, and Tom's bed was so placed that he could look out, without raising his head from the pillow, over the court in the rear of the Inn and into the misty depths of Lovel's Woods beyond the offices and stables.

As he lay half-consciously musing—it must have been near midnight—his attention was suddenly riveted upon the court below. It seemed to him that he heard footsteps. He was instantly wide awake, and jumped from the bed to the window, whence he peered from behind the curtain into the courtyard. Close to the wall of the Inn, directly beneath the window, a shadow flitted on the moonlight-flooded pavement, and he could hear the crumbling of the snow. Cautiously he thrust his head out of the window. Moving rapidly along near to the house, was a little figure wrapped in a dark cloak, which looked to Tom for all the world like the Marquis de Boisdhyver.

For the moment he had the impulse to call to him by name, but the conversation he had so recently had with Dan flashed into his mind, and he decided to keep still and watch. The figure moved rapidly along the west wall of the Inn almost the entire length of the building, until it arrived at the entrance of the bowling-alley which abutted from the old northern wing. Reaching this it paused for a moment, glancing about; then inserted a key, fumbled for a moment with the latch, opened the door, and disappeared within.

Tom was perplexed. He could not be sure that it was the Marquis; but whether it were or not, he knew that there was no reason for any one entering the old portion of the Inn at midnight. His first thought was to go down alone and investigate; his second was to waken Dan.

He lowered the window gently, drew the curtains across it, and bending over his friend, shook him gently by the shoulder. "Dan, Dan, I say; wake up!"

"What's the matter?" exclaimed Dan with a start of alarm, as he sat up in bed.

"Nothing, nothing; don't make a noise. I happened to be awake, and hearing footsteps under the window, I got up and looked out. I saw some one moving along close to the wall until he got to the bowling alley. He opened the door and disappeared."

"The door's locked," exclaimed Dan. "Who was it?"

"He had a key, whoever he was then. To tell the truth, Dan, it looked like the Marquis; though I couldn't swear to him. I certainly saw some one."

"You have not been asleep and dreaming, have you?" asked his friend, rubbing his eyes.

"I should say not. I'm going down to investigate; thought you'd like to come along."

"So I shall," said Dan, jumping out of bed and beginning to dress. "If you really have seen any one, I'll wager you are right in thinking it's the old marquis. That is just the sort of thing I have imagined him being up to. What he wants though in the old part of the house is more than I can think. He has pestered me to get back there ever since I showed him over the place the day he arrived. Are you ready? Bring a candle, and some matches. Ill just take my gun along on general principles. I don't care how soon we get rid of the Marquis de Boisdhyver, but I shouldn't exactly like to shoot him out with a load of buckshot in his hide."

Tom stood waiting with his boots in hand. Dan went to his bureau and took out his father's old pistol, that had done duty in the West India trade years ago, when pirates were not romantic memories but genuine menaces.

"Sh!" whispered Dan as he opened the door. "Let's blow out the candle. It's moonlight, and we will be safer without it. Be careful as you go down stairs not to wake Mother and Nancy."

Tom blew out the candle and slipped the end into his pocket, as he tiptoed after Dan down the stairs. At every step the old boards seemed to creak as though in pain. As they paused breathless half-way down on the landing, they heard no sound save the loud ticking of the clock in the hall below and the gentle whispering of the breeze without. The moon gave light enough had they needed it, but each of them could have found his way through every nook and corner of the Inn in darkness as well as in broad day-light. They crept down the short flight from the landing, paused and listened at the doors of Mrs. Frost's and Nancy's chambers, and then slipped noiselessly into the bar where the logs still glowed on the hearth.

"Shall we," asked Tom in a low tone, "go down the corridor or around outside?"

"Best outside," Dan whispered. "If we go down the corridor we are like to frighten him if he is the Marquis, or get a bullet in our gizzards if he is not. Should he be inside, he'll have a light and we can find just where he is. I have a notion that it's the Marquis and that he'll be in the Oak Parlour. We'd better creep along the porch."

Very softly he unlocked the door, and stepped outside. Tom was close behind him. They crept stealthily along next the wall well within the shadow of the roof, pausing at every window to peer through the cracks of the shutters. But all were dark. As they turned the corner of the porch at the end of the main portion of the inn from which the north wing extended, Dan suddenly put his hand back and stopped Tom. "Wait," he breathed, "there's a light in the Oak Parlour. Stay here, while I peek in."

With gun in hand he crept up to the nearest window of the Oak Parlour. The heavy shutters were closed, but between the crack made by the warping of the wood, he could distinguish a streak of golden light. He waited a moment; and, then at the risk of alarming the intruder within, carefully tried the shutter. To his great satisfaction it yielded and swung slowly, almost noiselessly, back upon its hinges; the inside curtains were drawn; but a slight gap had been left. Peering in through this, Dan found he could get a view of a small section of the interior,—the end of the great Dorsetshire cabinet on the farther side of the room and a part of the wall. Before the cabinet, bending over its shelf, stood the familiar form of the Marquis de Boisdhyver, apparently absorbed in a minute examination of the carving. But Dan's attention was quickly diverted from the figure of the old Frenchman, for by his side, also engaged in a similar examination of the cabinet, stood Nancy. For a moment he watched them with intent interest, but as he could not discover what so absorbed them he slipped back to Tom, who was waiting at the turn of the porch.

"It's the Marquis," he whispered in his friend's ear.

"What is he up to?"

"I don't know. Apparently he is examining the old cabinet. But, Tom, Nancy is with him and as absorbed in the thing as he is. Look!" he exclaimed suddenly. "They've blown out the light."

As he spoke, he pointed to the window, now dark. "Come," he said, making an instant decision, "let's hide ourselves in the hall and see if they come back."

"But Nancy—?"

"No time for talk now. Come along."

They ran back along the porch, slipped into the bar, and thence into the hall. Dan motioned to Tom to conceal himself in a closet beneath the stairway, and he himself slipped behind the clock. Hardly were they safely hidden thus, than they heard a fumble at the latch of the door into the bar. Then the door was pushed open, and the Marquis stepped cautiously in the hall. He paused for a moment, listening intently. Then he held open the door a little wider; and another figure, quite enveloped by a long black coat, entered after him. They silently crossed the hall to the door of Nancy's chamber. This the Marquis opened; then bowed low, as his companion passed within. They were so close to him that Dan could have reached out his hand and touched them. As Nancy entered her room, Dan distinctly heard Monsieur de Boisdhyver whisper, "More success next time, mademoiselle!"

There was no reply.

The Marquis turned, stole softly up the stairs, and in a moment Dan heard the click of the latch as he closed his door. He slipped out from his hiding place, and whispered to Tom.

In a few moments they were back again in their bedroom.

"Heavens! man, what do you make of it?" asked Tom.

"Make of it!" exclaimed Dan, "I don't know what to make of it. It's incomprehensible. What the devil is that old rascal after, and how has he bewitched Nance?"

"Perhaps," suggested Tom, more for Nancy's sake than because he believed what he was saying, "it is simply that he is curious, and knowing that you don't want him in the old part of the Inn, he has persuaded Nancy to take him there at night."

"Nonsense! that couldn't possibly account for such secrecy and caution. No, Tom, he has some deviltry on foot, and we must find out what it is."

"That should be simple enough. Ask Nance."

"Ah!" exclaimed his friend, "you don't know Nance as well as I. You may be sure he has sworn her to secrecy, and Nance would never betray a promise whether she had been wise in making it or not."

"Then go to the old man himself and demand an explanation."

"He'd lie ..."

"Turn him out."

"I could do that, of course. But I think I would rather find out what he is up to. It has something to do with the old cabinet in the Oak Parlour. I'll find out the mystery of that if I have to hack the thing into a thousand pieces. What I hate, is Nance's being mixed up in it."

"We can watch again."

"Yes; we'll do that. In the meanwhile, I am going to investigate that old ark myself. There's something about, something concealed in it, that he wants to get. When I took him in there the day after he came, he couldn't keep his eyes off it. If you can get Nance out of the way tomorrow afternoon, I'll send the Marquis off with Jesse for that long-talked-of visit to Mondy Port; and I'll give Jesse instructions not to get him back before dark. And while they are away, I'll investigate the Oak Parlour myself. Can you get Nance off?"

"I might ask her to go and look over the Red Farm with me. She might like the walk through the woods. I could easily manage to be away for three or four hours."

"Good! You may think it odd, Tom, that I should seem to distrust Nance. I don't distrust her, but there has always been a mystery about her. Mother knows a good deal more than she has even been willing to tell to me, or even to Nance, I guess. I know nothing except that she is of French extraction, and I have sometimes wondered since she has been so often with the old Marquis this winter, if he didn't know something about her. It flashed over me to-night as I saw them in that deserted room. Whatever is a-foot, I am going to get at the bottom of it. We will watch again to-morrow night. I heard him whisper as he left Nance, 'More success next time!' This sort of thing may have been going on for a month."

They undressed again, and Dan put his gun away in his bureau. "We may have use for that yet, Tommy," he said. "It would do me good, after what I have seen to-night, to put a bit of lead into the Marquis de Boisdhyver as a memento of his so delightful sojourn at L'Auberge au Chene Rouge."