The Master Key

"Oh, I'm not complaining," said Rob. "It wasn't much trouble to break through."

"You seem quite young to have mastered such wonderful secrets of Nature," continued the king.

"So I am," replied Rob, modestly; "but these natural forces have really existed since the beginning of the world, and some one was sure to discover them in time." He was quoting the Demon, although unconsciously.

"You are an American, I suppose," said the minister, coming close to Rob and staring him in the face.

"Guessed right the first time," answered the boy, and drawing his Character Marking spectacles from his pocket, he put them on and stared at the minister in turn.

Upon the man's forehead appeared the letter "E".

"Your Majesty," said Rob, "I have here another queer invention. Will you please wear these spectacles for a few moments?"

The king at once put them on.

"They are called Character Markers," continued the boy, "because the lenses catch and concentrate the character vibrations radiating from every human individual and reflect the true character of the person upon his forehead. If a letter 'G' appears, you may be sure his disposition is good; if his forehead is marked with an 'E' his character is evil, and you must beware of treachery."

The king saw the "E" plainly marked upon his minister's forehead, but he said nothing except "Thank you," and returned the spectacles to Rob.

But the minister, who from the first had been ill at ease, now became positively angry.

"Do not believe him, your Majesty!" he cried. "It is a trick, and meant to deceive you."

"I did not accuse you," answered the king, sternly. Then he added: "I wish to be alone with this young gentleman."

The minister left the room with an anxious face and hanging head.

"Now," said Rob, "let's look over the record of the past day and see if that fellow has been up to any mischief."

He turned the cylinder of the Record to "England," and slowly the events of the last twenty-four hours were reproduced, one after the other, upon the polished plate.

Before long the king uttered an exclamation. The Record pictured a small room in which were seated three gentlemen engaged in earnest conversation. One of them was the accused minister.

"Those men," said the king in a low voice, while he pointed out the other two, "are my avowed enemies. This is proof that your wonderful spectacles indicated my minister's character with perfect truth. I am grateful to you for thus putting me upon my guard, for I have trusted the man fully."

"Oh, don't mention it," replied the boy, lightly; "I'm glad to have been of service to you. But it's time for me to go."

"I hope you will favor me with another interview," said the king, "for I am much interested in your electrical inventions. I will instruct my guards to admit you at any time, so you will not be obliged to fight your way in."

"All right. But it really doesn't matter," answered Rob. "It's no trouble at all to knock 'em over."

Then he remembered his manners and bowed low before the king, who seemed to him "a fine fellow and not a bit stuck up." And then he walked calmly from the palace.

The people in the outer room stared at him wonderingly and the officer of the guard saluted the boy respectfully. But Rob only smiled in an amused way as he marched past them with his hands thrust deep into his trousers' pockets and his straw hat tipped jauntily upon the back of his head.

CHAPTER ELEVEN

THE MAN OF SCIENCE

Rob passed the remainder of the day wandering about London and amusing himself by watching the peculiar ways of the people. When it became so dark that there was no danger of his being observed, he rose through the air to the narrow slit in the church tower and lay upon the floor of the little room, with the bells hanging all around him, to pass the night.

He was just falling asleep when a tremendous din and clatter nearly deafened him, and set the whole tower trembling. It was the midnight chime.

Rob clutched his ears tightly, and when the vibrations had died away descended by the ladder to a lower platform. But even here the next hourly chime made his ears ring, and he kept descending from platform to platform until the last half of a restless night was passed in the little room at the bottom of the tower.

When, at daylight, the boy sat up and rubbed his eyes, he said, wearily: "Churches are all right as churches; but as hotels they are rank failures. I ought to have bunked in with my friend, King Edward."

He climbed up the stairs and the ladders again and looked out the little window in the belfry. Then he examined his map of Europe.

"I believe I'll take a run over to Paris," he thought. "I must be home again by Saturday, to meet the Demon, so I'll have to make every day count."

Without waiting for breakfast, since he had eaten a tablet the evening before, he crept through the window and mounted into the fresh morning air until the great city with its broad waterway lay spread out beneath him. Then he sped away to the southeast and, crossing the channel, passed between Amiens and Rouen and reached Paris before ten o'clock.

Near the outskirts of the city appeared a high tower, upon the flat roof of which a man was engaged in adjusting a telescope. Upon seeing Rob, who was passing at no great distance from this tower, the man cried out:

"Approchez! – Venez ici!"

Then he waved his hands frantically in the air, and fairly danced with excitement. So the boy laughed and dropped down to the roof where, standing beside the Frenchman, whose eyes were actually protruding from their sockets, he asked, coolly:

"Well, what do you want?"

The other was for a moment speechless. He was a tall, lean man, having a bald head but a thick, iron-gray beard, and his black eyes sparkled brightly from behind a pair of gold-rimmed spectacles. After attentively regarding the boy for a time he said, in broken English:

"But, M'sieur, how can you fly wizout ze – ze machine? I have experiment myself wiz some air-ship; but you – zere is nossing to make go!"

Rob guessed that here was his opportunity to do the Demon a favor by explaining his electrical devices to this new acquaintance, who was evidently a man of science.

"Here is the secret, Professor," he said, and holding out his wrist displayed the traveling machine and explained, as well as he could, the forces that operated it.

The Frenchman, as you may suppose, was greatly astonished, and to show how perfectly the machine worked Rob turned the indicator and rose a short distance above the tower, circling around it before he rejoined the professor on the roof. Then he showed his food tablets, explaining how each was stored with sufficient nourishment for an entire day.

The scientist positively gasped for breath, so powerful was the excitement he experienced at witnessing these marvels.

"Eet is wonderful – grand – magnifique!" he exclaimed.

"But here is something of still greater interest," continued Rob, and taking the Automatic Record of Events from his pocket he allowed the professor to view the remarkable scenes that were being enacted throughout the civilized world.

The Frenchman was now trembling violently, and he implored Rob to tell him where he might obtain similar electrical machines.

"I can't do that," replied the boy, decidedly; "but, having seen these, you may be able to discover their construction for yourself. Now that you know such things to be possible and practical, the hint should be sufficient to enable a shrewd electrician to prepare duplicates of them."

The scientist glared at him with evident disappointment, and Rob continued:

"These are not all the wonders I can exhibit. Here is another electrical device that is, perhaps, the most remarkable of any I possess."

He took the Character Marking spectacles from his pocket and fitted them to his eyes. Then he gave a whistle of surprise and turned his back upon his new friend. He had seen upon the Frenchman's forehead the letters "E" and "C."

"Guess I've struck the wrong sort of scientist, after all!" he muttered, in a disgusted tone.

His companion was quick to prove the accuracy of the Character Marker. Seeing the boy's back turned, he seized a long iron bar that was used to operate the telescope, and struck at Rob so fiercely that had he not worn the Garment of Protection his skull would have been crushed by the blow. As it was, the bar rebounded with a force that sent the murderous Frenchman sprawling upon the roof, and Rob turned around and laughed at him.

"It won't work, Professor," he said. "I'm proof against assassins. Perhaps you had an idea that when you had killed me you could rob me of my valuable possessions; but they wouldn't be a particle of use to a scoundrel like you, I assure you! Good morning."

Before the surprised and baffled scientist could collect himself sufficiently to reply, the boy was soaring far above his head and searching for a convenient place to alight, that he might investigate the charms of this famed city of Paris.

It was indeed a beautiful place, with many stately buildings lining the shady boulevards. So thronged were the streets that Rob well knew he would soon be the center of a curious crowd should he alight upon them. Already a few sky-gazers had noted the boy moving high in the air, above their heads, and one or two groups stood pointing their fingers at him.

Pausing at length above the imposing structure of the Hotel Anglais, Rob noticed at one of the upper floors an open window, before which was a small iron balcony. Alighting upon this he proceeded to enter, without hesitation, the open window. He heard a shriek and a cry of "Au voleur!" and caught sight of a woman's figure as she dashed into an adjoining room, slamming and locking the door behind her.

"I don't know as I blame her," observed Rob, with a smile at the panic he had created. "I s'pose she takes me for a burglar, and thinks I've climbed up the lightning rod."

He soon found the door leading into the hallway and walked down several flights of stairs until he reached the office of the hotel.

"How much do you charge a day?" he inquired, addressing a fat and pompous-looking gentleman behind the desk.

The man looked at him in a surprised way, for he had not heard the boy enter the room. But he said something in French to a waiter who was passing, and the latter came to Rob and made a low bow.

"I speak ze Eengliss ver' fine," he said. "What desire have you?"

"What are your rates by the day?" asked the boy.

"Ten francs, M'sieur."

"How many dollars is that?"

"Dollar Americaine?"

"Yes; United States money."

"Ah, oui! Eet is ze two dollar, M'sieur."

"All right; I can stay about a day before I go bankrupt. Give me a room."

"Certainement, M'sieur. Have you ze luggage?"

"No; but I'll pay in advance," said Rob, and began counting out his dimes and nickles and pennies, to the unbounded amazement of the waiter, who looked as if he had never seen such coins before.

He carried the money to the fat gentleman, who examined the pieces curiously, and there was a long conference between them before it was decided to accept them in payment for a room for a day. But at this season the hotel was almost empty, and when Rob protested that he had no other money the fat gentleman put the coins into his cash box with a resigned sigh and the waiter showed the boy to a little room at the very top of the building.

Rob washed and brushed the dust from his clothes, after which he sat down and amused himself by viewing the pictures that constantly formed upon the polished plate of the Record of Events.

CHAPTER TWELVE

HOW ROB SAVED A REPUBLIC

While following the shifting scenes of the fascinating Record Rob noted an occurrence that caused him to give a low whistle of astonishment and devote several moments to serious thought.

"I believe it's about time I interfered with the politics of this Republic," he said, at last, as he closed the lid of the metal box and restored it to his pocket. "If I don't take a hand there probably won't be a Republic of France very long and, as a good American, I prefer a republic to a monarchy."

Then he walked down-stairs and found his English-speaking waiter.

"Where's President Loubet?" he asked.

"Ze President! Ah, he is wiz his mansion. To be at his residence, M'sieur."

"Where is his residence?"

The waiter began a series of voluble and explicit directions which so confused the boy that he exclaimed:

"Oh, much obliged!" and walked away in disgust.

Gaining the street he approached a gendarme and repeated his question, with no better result than before, for the fellow waved his arms wildly in all directions and roared a volley of incomprehensible French phrases that conveyed no meaning whatever.

"If ever I travel in foreign countries again," said Rob, "I'll learn their lingo in advance. Why doesn't the Demon get up a conversation machine that will speak all languages?"

By dint of much inquiry, however, and after walking several miles following ambiguous directions, he managed to reach the residence of President Loubet. But there he was politely informed that the President was busily engaged in his garden, and would see no one.

"That's all right," said the boy, calmly. "If he's in the garden I'll have no trouble finding him."

Then, to the amazement of the Frenchmen, Rob shot into the air fifty feet or so, from which elevation he overlooked a pretty garden in the rear of the President's mansion. The place was protected from ordinary intrusion by high walls, but Rob descended within the enclosure and walked up to a man who was writing at a small table placed under the spreading branches of a large tree.

"Is this President Loubet?" he inquired, with a bow.

The gentleman looked up.

"My servants were instructed to allow no one to disturb me," he said, speaking in excellent English.

"It isn't their fault; I flew over the wall," returned Rob. "The fact is," he added, hastily, as he noted the President's frown, "I have come to save the Republic; and I haven't much time to waste over a bundle of Frenchmen, either."

The President seemed surprised.

"Your name!" he demanded, sharply.

"Robert Billings Joslyn, United States of America!"

"Your business, Monsieur Joslyn!"

Rob drew the Record from his pocket and placed it upon the table.

"This, sir," said he, "is an electrical device that records all important events. I wish to call your attention to a scene enacted in Paris last evening which may have an effect upon the future history of your country."

He opened the lid, placed the Record so that the President could see clearly, and then watched the changing expressions upon the great man's face; first indifference, then interest, the next moment eagerness and amazement.

"Mon Dieu!" he gasped; "the Orleanists!"

Rob nodded.

"Yes; they've worked up a rather pretty plot, haven't they?"

The President did not reply. He was anxiously watching the Record and scribbling notes on a paper beside him. His face was pale and his lips tightly compressed.

Finally he leaned back in his chair and asked:

"Can you reproduce this scene again?"

"Certainly, sir," answered the boy; "as often as you like."

"Will you remain here while I send for my minister of police? It will require but a short time."

"Call him up, then. I'm in something of a hurry myself, but now I've mixed up with this thing I'll see it through."

The President touched a bell and gave an order to his servant. Then he turned to Rob and said, wonderingly:

"You are a boy!"

"That's true, Mr. President," was the answer; "but an American boy, you must remember. That makes a big difference, I assure you."

The President bowed gravely.

"This is your invention?" he asked.

"No; I'm hardly equal to that. But the inventor has made me a present of the Record, and it's the only one in the world."

"It is a marvel," remarked the President, thoughtfully. "More! It is a real miracle. We are living in an age of wonders, my young friend."

"No one knows that better than myself, sir," replied Rob. "But, tell me, can you trust your chief of police?"

"I think so," said the President, slowly; "yet since your invention has shown me that many men I have considered honest are criminally implicated in this royalist plot, I hardly know whom to depend upon."

"Then please wear these spectacles during your interview with the minister of police," said the boy. "You must say nothing, while he is with us, about certain marks that will appear upon his forehead; but when he has gone I will explain those marks so you will understand them."

The President covered his eyes with the spectacles.

"Why," he exclaimed, "I see upon your own brow the letters – "

"Stop, sir!" interrupted Rob, with a blush; "I don't care to know what the letters are, if it's just the same to you."

The President seemed puzzled by this speech, but fortunately the minister of police arrived just then and, under Rob's guidance, the pictured record of the Orleanist plot was reproduced before the startled eyes of the official.

"And now," said the boy, "let us see if any of this foolishness is going on just at present."

He turned to the opposite side of the Record and allowed the President and his minister of police to witness the quick succession of events even as they occurred.

Suddenly the minister cried, "Ha!" and, pointing to the figure of a man disembarking from an English boat at Calais, he said, excitedly:

"That, your Excellency, is the Duke of Orleans, in disguise! I must leave you for a time, that I may issue some necessary orders to my men; but this evening I shall call to confer with you regarding the best mode of suppressing this terrible plot."

When the official had departed, the President removed the spectacles from his eyes and handed them to Rob.

"What did you see?" asked the boy.

"The letters 'G' and 'W'."

"Then you may trust him fully," declared Rob, and explained the construction of the Character Marker to the interested and amazed statesman.

"And now I must go," he continued, "for my stay in your city will be a short one and I want to see all I can."

The President scrawled something on a sheet of paper and signed his name to it, afterward presenting it, with a courteous bow, to his visitor.

"This will enable you to go wherever you please, while in Paris," he said. "I regret my inability to reward you properly for the great service you have rendered my country; but you have my sincerest gratitude, and may command me in any way."

"Oh, that's all right," answered Rob. "I thought it was my duty to warn you, and if you look sharp you'll be able to break up this conspiracy. But I don't want any reward. Good day, sir."

He turned the indicator of his traveling machine and immediately rose into the air, followed by a startled exclamation from the President of France.

Moving leisurely over the city, he selected a deserted thoroughfare to alight in, from whence he wandered unobserved into the beautiful boulevards. These were now brilliantly lighted, and crowds of pleasure seekers thronged them everywhere. Rob experienced a decided sense of relief as he mixed with the gay populace and enjoyed the sights of the splendid city, for it enabled him to forget, for a time, the responsibilities thrust upon him by the possession of the Demon's marvelous electrical devices.

CHAPTER THIRTEEN

ROB LOSES HIS TREASURES

Our young adventurer had intended to pass the night in the little bed at his hotel, but the atmosphere of Paris proved so hot and disagreeable that he decided it would be more enjoyable to sleep while journeying through the cooler air that lay far above the earth's surface. So just as the clocks were striking the midnight hour Rob mounted skyward and turned the indicator of the traveling machine to the east, intending to make the city of Vienna his next stop.

He had risen to a considerable distance, where the air was remarkably fresh and exhilarating, and the relief he experienced from the close and muggy streets of Paris was of such a soothing nature that he presently fell fast asleep. His day in the metropolis had been a busy one, for, like all boys, he had forgotten himself in the delight of sight-seeing and had tired his muscles and exhausted his strength to an unusual degree.

It was about three o'clock in the morning when Rob, moving restlessly in his sleep, accidently touched with his right hand the indicator of the machine which was fastened to his left wrist, setting it a couple of points to the south of east. He was, of course, unaware of the slight alteration in his course, which was destined to prove of serious importance in the near future. For the boy's fatigue induced him to sleep far beyond daybreak, and during this period of unconsciousness he was passing over the face of European countries and approaching the lawless and dangerous dominions of the Orient.

When, at last, he opened his eyes, he was puzzled to determine where he was. Beneath him stretched a vast, sandy plain, and speeding across this he came to a land abounding in luxuriant vegetation.

The centrifugal force which propelled him was evidently, for some reason, greatly accelerated, for the scenery of the country he was crossing glided by him at so rapid a rate of speed that it nearly took his breath away.

"I wonder if I've passed Vienna in the night," he thought. "It ought not to have taken me more than a few hours to reach there from Paris."

Vienna was at that moment fifteen hundred miles behind him; but Rob's geography had always been his stumbling block at school, and he had not learned to gage the speed of the traveling machine; so he was completely mystified as to his whereabouts.

Presently a village having many queer spires and minarets whisked by him like a flash. Rob became worried, and resolved to slow up at the next sign of habitation.

This was a good resolution, but Turkestan is so thinly settled that before the boy could plan out a course of action he had passed the barren mountain range of Thian-Shan as nimbly as an acrobat leaps a jumping-bar.

"This won't do at all!" he exclaimed, earnestly. "The traveling machine seems to be running away with me, and I'm missing no end of sights by scooting along up here in the clouds."

He turned the indicator to zero, and was relieved to find it obey with customary quickness. In a few moments he had slowed up and stopped, when he found himself suspended above another stretch of sandy plain. Being too high to see the surface of the plain distinctly he dropped down a few hundred feet to a lower level, where he discovered he was surrounded by billows of sand as far as his eye could reach.

"It's a desert, all right," was his comment; "perhaps old Sahara herself."

He started the machine again towards the east, and at a more moderate rate of speed skimmed over the surface of the desert. Before long he noticed a dark spot ahead of him which proved to be a large body of fierce looking men, riding upon dromedaries and slender, spirited horses and armed with long rifles and crookedly shaped simitars.

"Those fellows seem to be looking for trouble," remarked the boy, as he glided over them, "and it wouldn't be exactly healthy for an enemy to get in their way. But I haven't time to stop, so I'm not likely to get mixed up in any rumpus with them."

However, the armed caravan was scarcely out of sight before Rob discovered he was approaching a rich, wooded oasis of the desert, in the midst of which was built the walled city of Yarkand. Not that he had ever heard of the place, or knew its name; for few Europeans and only one American traveler had ever visited it. But he guessed it was a city of some importance from its size and beauty, and resolved to make a stop there.

Above the high walls projected many slender, white minarets, indicating that the inhabitants were either Turks or some race of Mohammedans; so Rob decided to make investigations before trusting himself to their company.

A cluster of tall trees with leafy tops stood a short distance outside the walls, and here the boy landed and sat down to rest in the refreshing shade.