They said very little now. John drove on through a great happy silence. All the omens were good, and he believed that they would escape. Surely, fortune was with them when they had been able to come so far without challenge. The sun swam over the earth and threw golden beams into the valley. On their right a swift stream chattered over the stones and further away on their left rose the steep slopes, heavy with forest. They passed farmers and shepherds who had little time to take notice, as they saw the great machine but a moment, and then it was gone.

John had his mind set on escape by the way of the Adriatic. He had heard rumors that Italy might enter the war on the side of the Allies, but he knew that it had not yet taken any action and he had high hopes of finding a path to safety in that direction. Meanwhile, and whatever came of it, he must press on.

Toward noon he slackened speed, and they ate a little from the supplies they carried in the automobile. Just as they finished Suzanne held up her hand: "I think I hear another machine coming," she said.

"You are right," said John, after he had listened intently for a full minute. "It\'s the humming sound of tires, but it\'s only one automobile. Of that I\'m sure, and I think it\'s a light one. We\'ll drive on at moderate speed, attending strictly to our own business."

But he loosened the revolver in his belt, and while he appeared to look straight ahead he had eye and ear also for the approaching machine, which obviously was coming at a great pace.

"It\'s a small automobile with only one person in it," said Julie.

"Then we have nothing to fear," said John. "But the figure of the man at the wheel looks familiar."

"Ah!" said John, drawing a deep breath. In that region a familiar face could scarcely be the face of a friend. He stiffened a little, and cast another look at the revolver in his belt to see that it was convenient to his hand. Then, to indicate that he was not running away and to prevent suspicion, he slackened the speed of the machine. As he did so the humming behind them rapidly grew louder and a light runabout drew up by their side. John uttered a cry of amazement as he saw the man at the wheel.

It was Weber, the Alsatian, in civilian clothing, his black beard trimmed nicely to a point, his eyes flashing a smile of welcome, as he took off his cap and bowed low to John and Mademoiselle Julie Lannes, but lower to Julie. John brought his machine down to a slow pace, and there was room for Weber\'s by their side in the road.

"You never dreamed of being overtaken by me here," said the Alsatian, smiling again, and showing his white teeth.

"No," replied John. "It never occurred to me that it was you behind us."

"After all, I am, I think, your good angel. In your flight with Mademoiselle Lannes you need advice and guidance, and I can give both."

"You do appear at the most opportune times. It has become a habit for which I am grateful."

"It\'s not chance that I\'m here. It\'s pursuit and design. You know my duties as a spy, an ugly name, perhaps, but one that calls for daring and patriotism. Hearing of the council held at Zillenstein by Prince Karl of Auersperg I went there to learn what I could of it. The information that I was able to secure is in the hands of a confederate now on his way to Paris, and I remained to probe into the mystery of Mademoiselle Lannes\' disappearance."

"Then you learned of the hunting lodge on the mountain?"

"Very quickly. I discovered, too, that Mademoiselle Lannes and her maid had been taken away by a young chauffeur, coming from somewhere in Lorraine, who had been only a short time at the castle. Knowing you for what you are, Mr. Scott, and understanding your devotion, I leaped at once to the conclusion that it was you. I slipped away as soon as the snow melted sufficiently, and was the first from the outside world to reach the lodge. The absence of the limousine, the tire tracks leading toward Tellnitz and other evidence at the lodge showed without doubt that my conclusions were right."

"And you followed immediately?"

"Without delay. I reached Tellnitz, where you stopped, obtained this light machine and came on at speed. It will be my pleasure to help as much as I can you and the sister of the great Philip Lannes, the first aviator of France."

"You left France after we did, Monsieur Weber," said Julie. "Did you hear anything of Philip?"

"That he had recovered fully of his wound, Mademoiselle, and that he and the Arrow were once more in the service of his country. He knows of your abduction by Prince Karl of Auersperg. A friend, an aviator, Delaunois, furnished him with many facts, and I cannot doubt that he will come over Austria in the Arrow to seek your rescue."

The eyes of Julie, John and Suzanne, as with one impulse, turned upward. It seemed to John, for a moment or two, that his vivid imagination could fairly create the slender and graceful shape of Philip\'s aeroplane, outlined against the sky. But the heavens were flawless, a pure, unbroken blue, without speck or stain, and he suppressed a little sigh of disappointment.

"Do you know the country at all?" he asked of Weber.

"Somewhat. It was a part of my work before the war to pass through all the regions of Germany and Austria, and learn as much of them as I could. At the end of this valley is a small village called Obenstein, where perhaps it would be wise for us to spend the next night. After that we must devise some method of getting out of Austria—and I do not seek to conceal from you that it will be a most difficult task. Perhaps it would be better to change your plan and enter Switzerland, a neutral country. It, of course, would end your service as a soldier, but that, I take it, would be no great hardship to you now."

The color came into John\'s face, but he was bound to admit that Weber was right. His interest in the war had become far less than his interest in Julie Lannes.

"Perhaps we can tell better after we spend the night at Obenstein," he said.

"Nothing can be hurt by reserving our verdict until tomorrow," said Weber. "Obenstein is very secluded. I believe that it has neither telephone nor telegraph, and we\'ll surely be able to leave it tomorrow before any pursuit can reach us."

"Do you think the plan a good one?" said John to Julie.

"I know of no better," she replied in English. "I trust to you and Mr. Weber."

"Then it\'s agreed," said John to Weber.

"It\'s agreed."

The Alsatian now led the way in his light machine, and the limousine followed at an interval of fifty or sixty yards. One hour, then two and three passed, and nothing came in the way of their easy and rapid progress. It all seemed too smooth and fortunate to John. It was incredible that they could travel thus great distances through Austria, the land of the enemy. He knew that chance had a way of finding a balance, and violent and fierce events might be before them.

But as he drove on he scanned the heavens now and then with a questing eye. It had not occurred to him until Weber spoke that all of them might escape through the air. Lannes would trail them, not on the earth, but through mists and clouds. He would come, too, with friends almost as daring and skillful as himself, perhaps with Caumartin and the two, Castelneau and Méry, who had responded to the thrilling signal near Salzburg, when he took his first flight. His blood leaped and danced, and once more his eyes roved over the blue in search of the Arrow.

They came to Obenstein a little before dusk. It was a tiny village, almost hidden in a recess of the mountain, with a shaggy pine forest rising above it and casting its shadow over the houses. But there was a small, neat inn, and a garage for the machines, and the guests were received with the same hospitality that had been shown at Tellnitz. John again spread the rumor that it was a princess of the house of Auersperg who came, and he added Weber to the list of those who were attending her in her flight to a safer region. Julie withdrew as before to her room with her maid, but giving John, before she went, the brilliant smile of faith and confidence that would have sent him, sword in hand, against dragons.

He and Weber sat awhile in the little smoking-room talking in low tones of their journey. Most of the time they were alone, a waiter merely passing through now and then, and they had no fear of being overheard.

"Weber," he said, "I\'ve learned from the innkeeper that a mountain road leads from here toward Switzerland and I feel sure already that your suggestion about our escaping into that country is good. You, of course, when you reach the border will do as you choose, as you will want to continue the dangerous work upon which you\'re engaged. But you may be sure that if we do get through, Mademoiselle Lannes and I will never forget the help that you have given us."

"All that I do I do gladly," said Weber. "You may not have spoken to each other but it is easy for me to tell how matters stand between Mademoiselle Lannes and you."

John was silent but his color deepened.

"You must not mind my saying these things," said Weber, speaking easily. "I\'m older than you and the times are unusual. When you reach Paris you and Mademoiselle Lannes will be married."

John was still silent.

"And you will take her to America for the present, or at least Until the war is over. Ah, well! You\'re a happy man! Youth and the springtime! Beauty and love! Kings can procure no more and seldom as much! I think I\'ll walk in the air a little and have a smoke."

"And I," said John, "will go to sleep. I\'ve a tiny room on the ground floor, but it\'s big enough to hold me. Good night."

"Good night, Mr. Scott."

There was only a single window in John\'s little room, but before undressing he opened it and stood there to breathe the cool night air for a while. It looked upon the forest that ran up the slope of the mountain, and the odor of the pines was very pleasant. Looking idly at the trunks and the foliage he saw a shadow pass into the depths of the forest and something, a pulse in his temple, perhaps, struck a warning note.

A shiver ran down his back and his hair lifted, as if touched with electric sparks. Acting at once under impulse he touched the pistol inside the pocket of his jacket to see that it was all right, and slipped out of the room.

He had marked the point at which the shadow disappeared in the forest and he followed it on light foot. He had been awakened as if a stroke of lightning had blazed suddenly before his eyes, and now his brain was seething with fierce thoughts, called up by a long chain of incidents, all at once made complete.

His hand slipped again to the revolver and he drew it forth, holding it ready for instant use. Then he went forward swiftly again on noiseless steps, and once more he caught a glimpse of the flitting shadow straight ahead. He increased his speed and the shadow resolved itself into the figure of a man, a figure that seemed familiar to him.

Two or three times the man stopped and looked back, but John had shrunk behind a tree and no pursuit was visible. Then he resumed his rapid flight up the steep slope, and young Scott persistently followed, never once losing sight of the active figure.

The way led to the crest of the mountain which hung about two thousand feet above the village and it was a climb requiring some time and endurance, but though John\'s pulse beat fast it was with excitement and not with exhaustion. At the summit he saw the figure emerge upon an open space upon which stood a slender round tower of considerable height.

John stopped at the edge of the pines and saw the figure disappear within the tower, upon the summit of which something presently began to flash and crackle. He caught his breath and the blood leaped fiercely through his veins. He knew that the tower was a wireless signal station and that it was talking to another somewhere. It sent, too, as he well knew, through the velvety blue of the night the message that Mademoiselle Julie Lannes, Suzanne, her maid, and John Scott, the American, were in the village of Obenstein where they could be taken.

He cursed himself for a fool, thrice a fool! Why had he not understood long before? Why had he not seen that so many coincidences could not be the result of chance? Only design and skill could have brought them about! Who had disabled the automobile in that flight with Carstairs and Wharton from the Germans? Who had sought to delay Lannes until he could be caught by the enemy? Who was the mysterious man in the aeroplane who had wounded Philip, who had led John from the chateau under the very rifles of the waiting marksmen, and who had been responsible for Julie\'s capture at Chastel? That letter, purporting to be from Philip, and directing her to come to Chastel, was surely a forgery!

These and all the other details crashed upon him with cumulative force, and he was so mad with fury that he thought his heart would burst with the surging blood. Why had the man worked with such energy and such cruel persistence against him? But his wonder quickly passed, because the reason did not matter now. Instead he put his finger on the trigger of the automatic and waited.

The wireless flashed and crackled for five minutes, then five minutes of silence and the figure of Weber reappeared at the base of the tower. He lingered there for a little space looking warily about him, before he began the descent of the mountain, and John quietly withdrew further into the pines. Weber presently crossed the open space, entering the forest, and John, noiseless, retreated before him.

Thus they proceeded down the mountain until the wireless tower was left several hundred yards behind and they were buried deep in the pine forest. Then John stepped suddenly into the road not twenty yards before the Alsatian and leveling his automatic said sharply:

"Hands up, Weber!"

Weber started violently and slowly raised his hands. But he said with composure:

"Why this sudden violence, Mr. Scott?"

"Because you have been upon the wireless tower signaling to our enemies. I\'ve just understood everything, Weber. You\'re a German and not a French spy, and you\'ve played the traitor to Julie and Philip Lannes and me all along."

There was enough moonlight for John to see that Weber\'s face was distorted by an evil smile.

"You\'ve been a trifle slow in discovering just what I am," he said, calmly. "I\'ve wondered that a young man of your perception didn\'t find me out earlier."

John flushed. The Alsatian\'s effrontery, in truth, had been amazing and in that perhaps lay his success—so far.

"It\'s true," he said, "I should have suspected you sooner, but it did not occur to me that human nature could be so vile. To undertake such risks and to use so much trickery and guile there must be a powerful motive, and in your case I can\'t guess it. Now, Weber, why did you do it?"

"Let me drop my hands, Mr. Scott, and I\'ll answer you," said Weber. "It\'s difficult to argue a case in such a strained and awkward position."

"Put them down, then, but remember that I\'m watching you, and that I\'m willing to shoot. Now, go ahead. Why have you been such a persistent enemy of Mademoiselle Lannes, her brother and myself? Why have you been such a triple traitor?"

"Don\'t call me a traitor, because a traitor I am not. On the contrary I am loyal with a loyalty of which you, John Scott, an American, know nothing. I\'ve called myself an Alsatian, but really I am not. I am an Austrian. I was born on the Zillenstein estate of Prince Karl of Auersperg. My family has served his for a thousand years. Great as I hold Hapsburg and Hohenzollern, Auersperg means even more to me. The Auerspergs are the very essence and spirit of that aristocracy and rule of the very highborn, in which I believe and to which your country and later the French have stood in the exact opposite. Every time that my pulse beats within me it beats with the wish that you and all that you stand for should fail."

John did not feel the slightest doubt of Weber\'s sincerity. The increasing moonlight, falling in a silver flood across his face, showed too clearly his earnestness. Yet that earnestness was not good to look upon. It was sinister, tinged strongly with the beliefs of an old and wicked past. He too, like his master, was of the Middle Ages.

"And so in all these deeds you were serving Prince Karl of Auersperg?" said John.

"To the death. It was a false escape that I planned for you at the chateau. You were to have been shot down, but by an unlucky chance you escaped in the water."

"I\'ve surmised that already."

"I\'m an aviator, not so great as your friend Lannes, but no mean one nevertheless. It was I who pursued him, when you were with him in the Arrow near Paris, and wounded him."

"I\'ve surmised that, too."

"And when Prince Karl coveted Mademoiselle Julie Lannes—and I do not blame him—I was of the most help to him in that matter so near to his heart. Do you understand that it was a great honor he offered Mademoiselle Lannes, to make her his morganatic wife? He need not have offered her so much."

The great pulse in John\'s throat beat heavily and his hand pressed the automatic, but he compressed his lips and said nothing.

"I see that my words anger you," continued Weber, "but from my point of view I am right. I serve my overlord!"

"What message were you sending by the wireless from the tower?"

"Doubtless you have guessed it. I was sending word to the detachment now on the road from Zillenstein to come here for Mademoiselle Lannes, her maid and you. They\'re ahorse, and they should arrive in three hours and you can\'t possibly escape. Before Prince Karl was compelled to leave for the theater of war he put this most important affair in my charge. He has not yet yielded all hope of Mademoiselle Lannes."

"It may be true that we can\'t escape, but what of yourself, Weber? We\'re alone in the forest and I hold the whip hand. The score that I owe you is large. You may have wrecked the life of Mademoiselle Julie and perhaps you will destroy my own, but you said it would be three hours before the detachment arrived, and I need only a few seconds."

"But I don\'t think you\'ll fire, Mr. Scott."

"Why, Weber?"

"Because I fire first!"

Absorbed in the talk John had unconsciously lowered the automatic, and, as agile as a panther, Weber suddenly leaped to one side, snatched a revolver from his own pocket and pulled the trigger. But the bullet flew wild. A huge shadow hovered over him and a weight crashed upon his head, smiting him down as if he had been struck by a giant shell. He sank in the path and lay motionless, dead ere he fell.

John stared, stricken with horror. The great shadow bent down a moment over the fallen man, then straightened itself up again, and two eyes in which the vengeful fire had not yet died gazed at John. Then as his dazed mind cleared he saw and knew. It was Antoine Picard, the gigantic and faithful servitor of the Lannes family.

"Antoine! Antoine!" cried John. "How did you come here? I thought you were in Munich!"

"It seems, your honor, that I\'m here at the right moment. His bullet would certainly have found your heart had not my club descended upon his head at the very instant that his finger touched the trigger. He\'ll never stir again."

"But Antoine, it\'s you, yourself! It doesn\'t seem real that you should be here at such a time!"

"It\'s none other than Antoine Picard, your honor, and he never struck a truer or more timely blow. They were to hold me a prisoner in Munich, but I escaped. I did not return to France. I could never desert Mademoiselle Julie, and I followed. My size drew their attention, but in one way or another I kept down suspicion or escaped them. I traced Mademoiselle Julie and my daughter to the great castle and then to the lodge on the mountain. I saw the traitor who lies so justly dead here talking with German troops, and I knew that there was need for me to hasten. In the night I stole the horse of a Uhlan and galloped to Obenstein.

"I approached the inn just in time to see the traito............