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THROUGH THE AIR TO THE NORTH POLE

OR

The Wonderful Cruise of the Electric Monarch

BY ROY ROCKWOOD

AUTHOR OF "THE RIVAL OCEAN DIVERS," "A SCHOOLBOY'S PLUCK," ETC.

1906

CONTENTS

CHAP.

I. DRIVEN FROM TOWN

II. THE RUNAWAY TRAIN

III. A STRANGE RESCUER

IV. THE AIRSHIP

V. A PLAN TO SEEK THE NORTH POLE

VI. AWAY IN THE AIRSHIP

VII. HELD BY ELECTRICITY

VIII. SURROUNDED BY EAGLES

IX. THE FROZEN NORTH REACHED

X. LOST IN AN ICE CAVE

XI. ATTACKED BY SEA LIONS

XII. A MYSTERIOUS MESSAGE

XIII. FORWARD ONCE MORE

XIV. TOSSED BY A TORNADO

XV. PRISONERS OF THE ESQUIMAUX

XVI. THE STRANGE WOMAN AIDS

XVII. FIGHTING FOR THE SHIP

XVIII. NORTHWARD ONCE MORE

XIX. A BLINDING SNOWSTORM

XX. AT THE NORTH POLE?

XXI. LOST IN THE SNOW

XXII. MAGNETIC FIRE WORSHIPPERS

XXIII. A STRANGE SACRIFICE

XXIV. SAVED BY DIROLA

XXV. ADRIFT ON THE ICE

XXVI. FIGHTING WILD DOGS

XXVII. BACK TO THE SHIP

XXVIII. ATTACKED BY THE NATIVES

XXIX. THE ESCAPE

XXX. HOMEWARD BOUND

THROUGH THE AIR TO THE NORTH POLE.

CHAPTER I

DRIVEN FROM TOWN

"Come now, you boys git out of here! No tramps allowed in Freeport while Ezra Jenkins is constable! Move along, now, or I'll arrest ye! Here's my badge of authority!" And a crabbed old man, wearing a faded blue suit, with a big shining star of metal on his coat, tapped the emblem with his club.

Two boys, who had just joined each other, after having called at houses on the main street of the little New York village, where Constable Jenkins held sway as the entire police force, started at the sound of the harsh voice.

"Come; are ye goin' to move?" snapped the constable.

"I suppose we'll have to," answered the larger and stouter of the two lads, "but we haven't done anything."

"Ye're tramps, ain't ye?" inquired the constable. "Course ye are! Been beggin', ain't ye? Course ye have! I kin see the victuals stickin' out of yer pockets now! Move on an' git out of Freeport! We don't want any tramps here!"

"Come on, Mark," said the heavier of the two boys; "if our room is better than our company, they can have the room. I hope you'll get richer boarders than we are," the youth went on, turning to the constable. "We are going to shake the dust of Freeport from our feet. I think they ought to call this town Closedport instead of Freeport!"

"None of yer sass, now!" warned the constable, tapping his badge again.
"Jest you move on out of town!"

"I think we had better go," murmured the other boy, who was thin and small. "Don't make any trouble, Jack."

"All right," assented the other. "Ta-ta, Mr. Chief of Police! See you later!"

"Here, you young rascals!" cried the constable. "Come back here an' I'll lock ye up!"

But the boys started to run, and, as Mr. Jenkins was no longer young, and as his legs were rather stiff, he went only a little way before he had to stop. He shook his fist after the two lads.

"Do you suppose he would have locked us up?" asked the small boy, whom his companion addressed as Mark. His full name was Mark Sampson, but he was very unlike his strong ancestor who pulled over the pillars of the temple.

"He acted mean enough to do anything," replied Jack Darrow, who was quite a contrast in point of size and fleshiness to his companion.

"What shall we do now?" asked Mark.

"Keep on moving, I guess," was the reply, "At least until we get outside of Freeport."

"Well, I'm glad I've got company now. It was lonesome before I met you."

"Same here. We'll travel a way together, eh?"

The two boys had met under rather strange circumstances. Early that morning Jack Darrow, the stout one, had awakened from his sleep in a pile of hay in a farmer's field. Close to him was another youth, whose name he had inquired as soon as the owner of it awoke.

Then the two boys discovered that their conditions in life were very similar. Both were orphans, about the same age, Jack being sixteen and Mark fifteen years, and neither had a place he could call home.

"My folks have been dead for some years," said Jack, in telling his story to his companion. "I was hired out to a farmer in the upper part of New York, but he worked me so hard and treated me so mean that I ran away. I've been tramping ever since; don't my clothes show it? You see I was forced to go without taking my many trunks along," and he laughed, for he was of a jolly disposition.

"My people are dead also," said Mark. "I had a job with a man going around the country with a traction engine, threshing wheat and oats at different farms. But he used to beat me, so, one night, I ran away."

"And didn't bring any extra clothes with you, either," put in Jack.

"I never owned any to bring. I only had the one suit I wore."

And after that the boys had told something of their experiences and become very friendly.

The two boys walked on for a while in silence, kicking up the dust of the country road. Then Jack came to a halt, clapped his hand on his pocket, and said:

"I nearly forgot I had something to eat! Just think of it! And I haven't dined since yesterday! I wonder what the lady gave me. She looked good natured."

He sat down on a grassy bank along the highway, pulled the package of food out, and began to eat with every indication of satisfaction.

"Bread, meat, piece of pie and a piece of cake!" he announced, looking over his lunch. "What did you get, Mark?"

"I got the same as you, except I didn't get any pie or cake."

"I guess your lady hadn't baked this week. Never mind, you can have half my pie and half my cake."

"I'm sure I'm much obliged," said the thin youth.

"You needn't be," broke in Jack. "That's the law of the road. When two—well, I suppose I might as well say tramps, for that's what we are—when two tramps go off together, they whack up. And that's what we're going to do!"

It did not take long for the boys to finish their simple meal. Jack, true to his promise, shared his dessert with his companion.

"Well, I feel like going on now, and looking for a job," remarked the heavier weighted lad. "What do you say, Mark?"

"I guess we might as well get out of this town. They don't seem to care for us. But I wish I had a drink of water."

"Nothing easier," replied Jack. "There you are," and he pointed a short distance ahead, where a brook ran along the road. The boys got down on their faces near a little pool, the bottom of which was covered with white pebbles, and drank heartily. Then, refreshed by the water, their hunger appeased, and rested, they started on the tramp again.

"Any particular place you want to go to?" asked Mark.

"No, I'm not particular. East or west, the north pole or the south pole. I haven't any one to worry about me, no matter which way I go. I'd a little rather go north, though, as it is mighty warm to-day," and Jack laughed carelessly.

Little did he guess how soon his wish was to be gratified.

"Then we may as well keep on until we get to the next town," said Mark.

They walked on for some distance, their thoughts busy with their recent experiences, when they suddenly heard a noise at a distance.

"Sounds like a freight train," said Mark.

"So it is! Come on! Let's get aboard! Riding is easier than walking any day! Hurry up!"

And then the two boys broke into a run toward a slow moving freight on a track that crossed the country road a short distance away from them.

"Look out that you don't get under the wheels!" cautioned Jack to his companion.

"Oh, I'm used to jumping the cars," replied Mark, as he ran quickly up beside the rails.

The two boys reached the track along which the freight train was bumping and clicking. It was a long outfit, with many box, flat and gondola cars.

"Try for a gondola!" suggested Jack, indicating the cars with sides about five feet high, and open at the top.

The next instant he had swung up on a car, thrusting his foot in the iron step, and grasping the handle in a firm grip. Jack grabbed the next car, and landed safely aboard. Then, running forward, and clambering over to where his companion was, Jack pulled Mark down on the bottom of the gondola.

"No use letting a brakeman see you if you can help it," he explained.

CHAPTER II

THE RUNAWAY TRAIN

On went the train, carrying the boys to a destination unknown to them. All they cared for was that they were going away from Freeport and its vindictive constable.

"How long have your folks been dead?" asked Jack, after he had settled himself comfortably in a corner.

"About five years," was the answer. "Father and mother went about the same time. They were poor, and I had no brothers or sisters. When I was all alone," the boy's voice trembled a bit, "I didn't know what to do. They wanted to send me to the poor-house, but I ran away. Then, after knocking about a bit, I got the job with the traction engine man, until he used me so I couldn't stand it."

"That's about my case," said Jack. "I had a brother, and he ran away before my folks died. I guess they felt bad about him. Anyhow, mother used to cry an awful lot. When I was left all alone I was taken care of by some poor folks, who kept me as long as they could. Then I had to shift for myself. I had a good many jobs, and then I thought I'd like to be a farmer. I was sent to a place but the man wasn't very kind. He whipped me because I made a mistake and pulled up an onion instead of a weed. Then he beat me because I gave the horse too many oats. He never told me how much to give. So I ran away, and I'm glad of it. I've been cold and hungry lots of times since, but I haven't been whipped."

"I guess that old constable would have licked us if he had the chance," put in Mark.

"No use worrying over that. He's a good many miles away now."

"Here! What are you boys doing there?" cried a voice.

Jack and Mark looked up, to see a brakeman gazing down at them from the top of a box car.

"We're taking a ride," answered Jack coolly.

"So I see," replied the brakeman. "Well, I guess it will come to an end right now. Hop off!"

"Are you the conductor?" asked Jack.

"No, of course not," said the wheel-twister.

"Then don't try to put us off," went on the boy, with an assumed haughty air. "Just send the conductor here to punch our tickets. We're traveling first class, and don't want to be disturbed any more than is necessary."

"Well, I like your nerve!" exclaimed the brakeman, climbing down. "Who are you, anyhow?"

The railroad man laughed. Then Jack smiled, for he knew he and his companion were safe. In a few words he told their stories, and the brakeman promised they might go as far as the train went.

"You boys are all right," said the brakeman. "I have two youngsters of my own at home, and I hope, if ever they get in a tight place, some one will help them. Can I do anything to fix you up?"

"Not unless you can lend us about one thousand dollars each," laughed
Jack, and the brakeman joined in with him.

"Or tell us where we can get work," put in Mark, who seemed quite worried.

"I can't say for sure where you can get jobs," the brakeman said, "but if I was in your place I'd get off at the next town. The name of it is Millville, and there are lots of factories there. Maybe you can strike something. I'll speak to the conductor and have him ask the engineer to slow up so you can jump off."

"We'd be obliged if you would," Jack said. "We may be tramps for a while, but we're both anxious to get work, and maybe Millville will be just the place for us."

"We're coming into it now," the brakeman went on. "It's about a mile from here. I'll go back, and when you hear five whistles from the engine you'll know it's slowing up and you are to jump off. I know the conductor will do that if I ask him."

The brakeman climbed up the ladder on the end of the box car next to the gondola where the boys were, until he reached the run-boards on top. Then he hurried along to the caboose, where the conductor was.

"We must listen for the five whistles," said Jack. "Get ready to jump,
Mark. Don't forget your baggage."

"No danger of that," chimed in the other, falling into the joyful mood of his companion, who never seemed to be cast down for long, no matter what happened.

The train was going down grade now, and the speed was much increased. Telegraph poles whizzed past at a rapid rate and the wheels sung a livelier tune as they clipped over the rail joints.

"It's a good thing the engineer is going to slow down for us," said
Jack. "We'd never be able to jump off at the rate we're going."

"Hark!" exclaimed Mark. "There goes the whistle!"

The boys listened. A long, shrill blast cut the summer air, and vibrated back to them over the tops of the cars.

"That isn't five whistles; it's one!" cried Jack. "It's the call for brakes! I wonder if anything has happened to the train!"

There was a pause. Then came another single shriek from the engine's whistle. It sounded appealingly, as if the steam monster was in distress.

"Look! Look!" shouted Mark. "We are going much faster than we were!"

At the same instant there was a crash and a jolting sound. The train seemed to break in two parts at about the centre. The forward section, drawn by the engine, went one way, and the other part, with the gondola containing the boys, in the lead, took another track. An insecurely fastened switch was responsible for the accident. The locomotive and nearly half the cars of the train took the main track, while the remainder of the outfit swung on to a siding.

The section of the train with the boys aboard had become a runaway freight!

"What has happened?" cried Mark.

"The train's broken in two!" shouted Jack. "Come on! Help twist the brakes!"

Both boys sprang to the wheel of the gondola. It was all they could do to give it a few turns, but they managed to make the brake-shoes grip the wheels to some degree, as was evidenced by the shrill shrieking.

"Can you climb up to the top of the box car?" asked Jack.

"Sure!" shouted Mark. "Go ahead!"

Though Mark was thin, he had a nervous strength almost equal to that of his stouter companion.

"We must set all the brakes we can!" Jack cried. "That's the only way to stop the runaway train!"

With their small arms they twisted the wheel on the box car. They got it as tight as they could, then ran along the top of the vehicle to the next one. About ten cars down they saw their friendly brakeman.

"That's the stuff, boys!" he shouted. "There'll be a smash-up if we don't stop the cars!"

He was twisting wheels with all his might. As fast as they could the two boys went from car to car, setting the brakes.

But in spite of their efforts, and the efforts of another brakeman besides the one they had spoken to, the speed of the runaway freight train increased. The grade was a steep one, and down the hill the uncontrolled cars rushed.

"I don't believe we're going to stop," said Jack.

"Shall we jump?" asked Mark.

"Not if you want to get a job in the mill or factory," replied Jack. "I reckon if you or I jumped that would be the last of us."

With a rush and a roar the train continued to speed along. The trees and telegraph poles whizzed past so quickly as to be almost invisible.

"I guess this is Millville," said Mark, as the runaway train passed a station, on several sides of which there were large buildings to be seen.

So fast was the runaway train going now that the boys had to lie down on their faces and cling to the run-boards on top of the box car to avoid being jolted off. The wind fairly whistled in their ears. Through the town they rushed, observing, as by a flash, the white, frightened face of the station agent as he watched them go past.

"Do you think there'll be a smash-up?" asked Mark.

"I don't see how it can be avoided," replied Jack. "This track has to come to an end somewhere. When it does, look out, that's all!"

On and on rushed the train! It's speed was now fearful, for the down grade had increased. It was of no avail to twist the brakes, for no strength would avail to slacken the awful speed. The boys, in common with the brakemen, could only cling and wait in terror for what was to come.

The cars swayed as they went around a curve. Jack lifted his head and peered forward.

"Hold fast!" he shouted. "We're going to strike something in a minute!"

He had looked up in time to see that the track siding came to an abrupt end about a quarter of a mile further on, the rails stopping in a sand bank.

Hardly had the boys time to take a tighter grip with their fingers on the boards to which they were clinging, when the whole string of freight cars seemed to crumple up like a collection of paper vehicles.

There was a grinding, sickening crash, a succession of heavy jolts, a piling up of one car on top of another, a splintering of wood, a rending of iron and steel, and then with one terrible smash, with one final roar, the runaway freight piled itself up in a mass of shattered cars against the sand hill, at the base of which the rails came to an end. It was a fearful wreck.

"Hold fast!" were the last words Jack cried to his companion. His voice sounded faint above the din.

"Where are you, Jack?" he heard Mark shout in reply.

Then all became dark, and the boys lost their senses as they were hurled into the splintered mass of wreckage.

CHAPTER III

A STRANGE RESCUER

"For de land sakes, Perfessor, hurry up! Heah's de stupenduousness conglomeration dat eber transcribed dis terresterial hemisphere!" exclaimed a stout, jolly looking colored man a few seconds after the crash of the wreck had ceased echoing.

"What is it, Washington?" asked a mild mannered elderly gentleman, with long flowing hair and beard, who, with the negro, had been walking in a field close to the railroad.

"I doan perzackly know, Perfessor, but it seems like there was a discontinuation ob de transportation facilities, when some sudden construction on de elongated tempestuousness attached to de railroad made de cars go bump! bump! Bang! Smack! Crash!"

"Washington! Washington! When will you stop using words that don't mean anything!" cried the old man, hurrying forward. "I presume you mean there has been a railroad wreck?"

"That's it, Perfessor. De extenuatin' circumstances ob transmigration—"

"That will do, Washington!" said the aged man, somewhat sternly. "You must stop talking, and act. This is no time for foolishness. There may be people hurt. Come along and let us see what we can do."

"Yes, sah!" replied the negro, calming down.

Then the two hurried down along the track, piled high with the debris of the runaway freight train.

"My! My! This is a terrible wreck!" cried the old man, as the two climbed over the mass of wreckage.

"Hi, Perfessor!" called the colored man, suddenly. "I've found something!"

"What is it, Washington?"

"It's a boy, an' he dead!"

"Oh, that's too bad!"

"An' heah's another, an' he's dead! Dis catafterme is de most—"

"Now, Washington, remember what I told you. No big words wanted at the present time. Where are the boys?"

"Here, Perfessor," and the negro showed the old man where Mark and Jack were lying, close together on a pile of sand. The professor bent over them. He felt of their hearts and listened to their breathing.

"Here!" he cried, suddenly. "They're not dead! They're only stunned!
Maybe we can save them! Hurry, Washington, and carry them to my cabin.
You take one and I will bring the other!"

"You don't need to carry any ob 'em," answered the colored man. "Dis chile is strong 'nuff, I reckon, to tote dem two boys," and, suiting the action to the words, he stooped down, put an arm around each of the prostrate forms and lifted one on each shoulder. "'Bout face! Forward march!" he cried.

With the old man following, the negro made his way along a path that led over the fields, until he came to a long and rather narrow shed built on the edge of the woods.

"Be sure no one is in sight before you go in!" cautioned the old man, as he opened the door, which was fastened with several padlocks. "It would never do to have my secret discovered now."

"Nobody in sight, master!" exclaimed the colored man, as he turned, with the two unconscious boys on his shoulders, and gazed about "De coast am clear."

"Then hurry inside and we will see what we can do for the poor lads. I fear they are seriously hurt."

The negro slipped in as the old man held the door open, hurriedly closing it afterward, and bolting it on the inside.

"Put them on my bed," went on the gray-haired man. "Then hurry back to the wreck! There may be more people hurt, whom you can aid. Don't stop to talk, but hurry back. I will see to the boys."

Not very willingly the negro left the shed. When he was gone, and the door was securely fastened after him, the old man went over to where Mark and Jack lay, both still unconscious.

"Poor lads!" sighed the old man. "I hope I can save them."

He went rapidly to work. Loosening the clothing of the boys he soon found that no bones were broken. Then from a medicine chest he took several bottles. In a tall glass, such as druggists use for mixing prescriptions, he put several liquids, and stirred the whole together. Then he moistened a little cotton in the preparation, and placed the white stuff under the noses of the lads, holding it in place with cloths. He had about completed this when a knock was heard at the door.

"Who is there?" he cried, starting up in alarm.

"Mr. Washington Jackson Alexander White," was the answer.

"Give the countersign!" demanded the old man, sternly, making no move to undo the bolts that held the door tight.

"De North Pole, an' long may it stand!" was the rather odd reply.

"Right! Enter!" said the professor, opening the door to give admittance to the colored man.

"Did you find any more victims of the wreck?" asked the old man.

"No, sah; Mr. Perfessor Amos Henderson, I did not," answered Washington.

"Just plain Professor will do," said Amos Henderson, quietly. "You needn't give my full name every time."

"All right, Perfessor," went on the colored man. "I didn't find no mo' pussons entangled in the distribution of debris. Dere was a lot ob railroad men dere, but dey wasn't hurted. Dey was lookin' fer two boys what was ridin' on de train when it went kersmash."

"I hope you didn't say anything about these lads, Washington."

"Not one single disjointed word, Perfessor. Dis chile knows when to persecute de essence ob quietude an' silence."

"There you go again! How many times have I told you not to try and use big words, Washington? Use simple language. I take it you mean there were no others injured in the wreck?"

"Perzackly."

"It is a miracle how these boys escaped instant death," the old man went on.

"I reckon as how it were owin' to de fack dat dey struck in a bank ob soft sand dat concussioned de fall," explained Washington.

"You mean the soft sand saved them?"

"Dat's de correctness ob it."

"I think you are right," the old man continued, as he fastened the door securely. "The shock of the sudden stopping of the runaway train, as it reached the end of the siding and crashed into the bank, probably threw the lads up in the air, and they came down in the sliding sand where we found them. Otherwise they would surely have been killed. As it is they have had severe shocks."

"Are dey goin' to die, Perfessor?"

"I hope not, Washington, but I must see to them."

Amos Henderson went over to the bed on which the two boys were stretched out, each with the piece of cotton soaked in the preparation over his mouth and nose.

"I am using a very powerful remedy," the old man muttered. "If they are not too badly hurt they will recover. Ah, yes, there is a little color in their pale cheeks."

He bent over the boys. As he had said, Jack's face was tinged with a light pink, and Mark's eye-lids were moving slightly.

"They are coming around all right," exclaimed the aged professor. "Hurry, Washington, and get some hot beef broth ready. Put the kettle on to boil and make some strong tea. They will want something to eat shortly after they recover their senses."

The colored man, humming softly to himself, began moving about the shed. It was a rough looking place from the outside, but, within, was fitted with many comforts. There was a gasoline stove, a table, several chairs, a bed, and a large case full of books. But the queerest sights of all were on the walls.

They were literally covered with cog wheels, levers, handles, springs, pieces of machinery, patterns, models, and strange devices. The room had two doors. One was that by which the old man and the negro had entered. The other was behind the bed, and was clamped and fastened with so many bolts and bars, with locks similar to those on big safes, that it would seem a rare treasure was concealed behind the portal.

The old man gave no heed to the wonders that surrounded him. Instead he gave all his attention to the boys. He sat down beside the bed and watched them as their breathing became stronger. From time to time he felt of their pulses, and nodded his head as if satisfied.

"Is the beef tea ready?" asked the old man, after a half hour had passed.

"It am, Perfessor."

"Then turn down the flame a bit so it will keep the stuff warm, and come back into the work shop with me. I want to get that last bolt in the engine."

"Are dem young gen'men all hunky-dory?"

"They are coming on nicely," was the old man's reply. "They will recover consciousness in half an hour and we can feed them, and give them some medicine. Come along, Washington."

The two passed out through the much-locked door behind the bed, the undoing of the fastenings taking some time. As the portal swung open it disclosed a long shed which seemed to be occupied with a big, strange object.

The old professor and the negro had not been gone more than five minutes before Jack opened his eyes. He turned over on one side. As he did so Mark slowly lifted his head.

"Hello!" cried Jack, faintly.

"What's the matter?" asked Mark.

"Matter? What? Where?" inquired Mark, sitting up.

"Here! Everywhere!" replied Jack, raising himself slowly on his elbow.
"All I remember is a terrible crash. Now look at all those wheels.
Wheels! Wheels! Wheels! I wonder if they can be in my head?" and he
tried to smile.

"No, they are real wheels, and they are on the walls," announced Mark.

"Then where in the world are we?" went on Jack. "In a machine shop or a railroad wreck?"

"Looks like—" began Mark, when he was interrupted by a voice calling:

"Hurry up, Perfessor! De boys has awakened from de unconsciousability!"

And, to the astonishment of Jack and Mark, the old man and his negro helper hurried from the inner room and stood in front of the bed.

CHAPTER IV

THE AIRSHIP

"Do you feel better?" asked the professor, anxiously, as he came forward and felt of the boys' pulses.

"A great deal," answered Jack. "But what has happened? Where are we?
What are all these wheels for?"

"Slowly, slowly," said the old man with a pleasant laugh. "One question at a time. For the first: what happened was a railroad wreck."

"I remember now," said Jack, slowly. "We tried to stop the cars."

"And you didn't succeed very well," went on the old man. "However, the sand bank did it for you, and stopped you two at the same time. As for your second question, you are here in my shop. As to the third, those wheels are parts of my great invention. But I will tell you about that after a while. I must give you some medicine now, and something to eat. Here, Washington!"

"Comin', Perfessor!"

Jack and Mark were more surprised than before when they saw a big colored man, seemingly as strong as an ox, coming toward them with two steaming bowls of beef broth. Washington was grinning with delight.

"Dis am de best beef stew dat eber transpositioned itself into yo' vicinity!" he exclaimed, setting the bowls down on a table near the bed.

"Now, Washington," cautioned the old man. "No big words, remember."

"All right, Perfessor," was the answer.

"Do you boys feel like eating?" asked the aged inventor.

"I do," replied Jack. "There was a time, though, when I thought I'd never get a chance to eat again. That was just before the crash."

"You were both knocked unconscious," the professor went on. "Washington and I happened to be near by and brought you here. Fortunately I am something of a doctor as well as an inventor, and I used a strong medicine I have."

"I'm sure we're much obliged to you," answered Mark.

"Let me see how much improved you are by eating," suggested the old man. "I can trust Washington to cook good meals, even if he does use big words."

Then, while the colored man grinned cheerfully at them, Jack and Mark, sitting up on the bed, for they were still weak and sore, ate the broth. After that both boys said they felt better.

"See if you can walk," suggested the inventor.

Mark and Jack stepped on the floor. They both uttered cries of pain.
They were stiff and lame from the shaking they had received.

"A day in bed will do you no harm," said their strange rescuer. "I have some liniment that will soon take the soreness out of every one of your muscles."

Though the boys protested at being made to remain in bed, the old man insisted. He made them take off most of their clothes, and then brought out some liniment. Under his direction Jack and Mark rubbed themselves well, and experienced almost immediate relief. It was now getting dusk, and Washington lighted a big lamp that hung in the centre of the room, first taking care that the shutters were tightly fastened.

The colored man prepared a simple supper for Mr. Henderson, and afterward got himself a meal. When the dishes were cleared away the old man, who had noted with smiles the anxious glances Jack and Mark were casting about the strange room, said:

"I suppose you boys would like to ask lots of questions."

"I'd like to know what all this machinery is for," spoke Jack.

"And what is behind that door," Mark went on, indicating the much-locked portal.

"I knew it!" exclaimed the old man. "I knew it! Now if I tell you will you promise to keep it a secret until I give you leave to speak?"

Of course the boys promised eagerly.

"Do you think you have rested enough now to take a look inside?" the inventor asked, nodding toward the locked door.

"Sure!" exclaimed Jack.

"Then put on your coats and trousers and I'll introduce you to my pet."

Wonderingly, the boys followed him. It took nearly a minute to unfasten the various bolts and bars, but at last the portal swung open. The place was dimly lighted by a single big lamp, but in the glare of it the boys caught sight of a strange, weird object. It looked like an immense cigar, and swayed slowly back and forward. It seemed to be covered with a net-work of cords. On the ground beneath it was what seemed to be a good-sized boat, with a large cabin amidships.

"What in the world is it?" cried Jack.

"It's my airship!" exclaimed Professor Henderson. "The only successful airship ever invented. It is the electric Monarch!"

"What is it for?" asked Mark.

"To navigate the realm of the stars and moon!" cried the old man. "With that I will rival the eagles in their flight!"

The boys were a little alarmed. The professor was strangely excited. His eyes sparkled in the reflected light of the lamp. Jack and Mark thought they might have been brought to the abode of a madman. They shrank back a little. But they were reassured a moment later when, with a pleasant laugh, the old man said:

"Don't be frightened, boys. I know what I am talking about. Here, Washington, more light! We will show them what we have done, hidden away from the sight of the curious, unbelieving world. Let them see my Monarch!"

"We'll illuminationness dis abode like it was de orb ob day shinin' heah!" exclaimed the negro, as he started several more lamps aglow.

"Are the shutters closed?" asked Mr. Henderson, anxiously.

"Tight as a drum-head," was the reply.

"Now look!" exclaimed the inventor, turning to the boys.

They were more than astonished at what they saw. They had no idea that the rough shed held such a perfect piece of machinery.

Up near the roof of the place, which was quite high, there swayed an immense bag of oiled silk. It was shaped like a cigar, big in the middle and tapering at both ends. The bag was enclosed in a net of ropes which extended down to the lower part of the airship.

This lower part, as the boys could see, was just like a steam launch in shape, only much lighter in weight. It had a sharp bow, and a blunt stern. From the stern there extended a large propeller, the blades being made from sheets of aluminum.

The main part of the ship proper, or the part suspended from the gas bag, was covered by a closed and roofed cabin about forty feet long, ten feet wide, and extending five feet above the gunwale of the ship. The cabin had four windows on each side, a companionway fore and aft, and a sort of look-out or conning tower forward, which, the professor explained, was the place for the steersman.

"Because this ship can be steered wherever you want to go," he said, pointing to the big rudder that was hung aft, an opening in it allowing the screw or propeller to revolve.

The boys were lost in admiration of the wonderful airship. They were consumed with curiosity as to how the machinery worked, and they thought no more of their knocks and bruises than as if a mosquito had bitten them. The professor watched their faces with delight. He loved boys and mechanical apparatus.

"Now we will enter the Monarch," he said. "Turn on the lights,
Washington."

There was a click, and the cabin of the airship was flooded with a soft glow of incandescent lamps.

"Come on!" called Mr. Henderson, leading the way. The boys followed, marveling at the wonders on every side.

They found the cabin of the strange craft divided into three parts. First came a sort of parlor, with a table and seats arranged on the sides. In the front part of this was a passage leading to the conning tower, or the place for the steersman. Behind the parlor came the sleeping quarters and dining room combined. The bunks were arranged to fold against the wall, and a table in the centre could be shut up when not in use and hoisted to the ceiling, giving plenty of space.

Next came the engine room, and as they entered it the boys could hardly restrain from giving cheers of delight. It was almost filled with machinery, and occupied a little more than half of the whole boat, being twenty-two by ten feet in size.

The two boys did not know the use of one quarter of the machinery and apparatus they gazed on. There were electric motors, storage batteries, two gasoline engines similar to those used in automobiles, pumps, large and small tanks, instruments for measuring the electric current, for telling the temperature, the amount of moisture in the air, the speed of the wind, the speed of the ship, the height to which it went, besides compasses, barometers, telescopes, and other instruments.

There were levers and wheels on every side, switches, valves, electric plugs and handles. Lockers arranged close to the wall and along the floor held supplies and materials. Everything was new and shining, and the professor smiled with pride as he touched piece after piece of machinery, and looked at the different instruments.

"Now we'll go out on the stern," he said.

The boys followed as he ascended the companion steps and emerged on a small platform at the rear end of the cabin.

"Do you know what this is?" asked the professor, touching a long, thin, round object.

"Looks like a gun," replied Mark.

"That's just what it is. It's a machine gun that will fire one hundred shots a minute, and it can be turned in any direction, as it works on a swivel. I don't know that we'll have any use for it, but I thought I'd take it along."

Then the professor pointed out where the propeller shaft ran from the engine room out through the stern, and showed how the rudder was worked by wire ropes extending from it to the conning tower.

"In short we have everything necessary to successfully navigate the air," he went on. "Not a thing has been overlooked. All I have to do is to fill the big bag of oiled silk with a new gas I have discovered and up we go. This is really the most important part of the invention. Without this powerful gas the airship would not rise above the earth.

"But I have found this gas, which can be made in unlimited quantities from simple materials that we can carry with us. The gas has enormous lifting power, and if it was not for that I would not dare make such a large and comfortable airship. As it is, we can sail through the air as easily as if we were on an ocean liner on the sea and much more quickly.

"I generate the gas in the engine room as I need it," the professor went on. "It goes to the oiled silk bag through two tubes. When we have arisen to a sufficient height I start the electric engine, the propeller whirls around, and the ship moves forward, just as a steamboat does when the screw is set in motion. Then all I have to do is to steer."

"It's great!" cried Jack with sparkling eyes.

"It certainly is," agreed Mark.

From the stern the professor took the boys to the conning tower, where there were several wheels and levers, that placed most of the important machines and engines in the boat under the direct control of the steersman. A lever turned one way would send the ship ahead. Turned in the opposite direction it would reverse the course. A wheel like that on an automobile served to direct the rudder and so guided the Monarch's course. Other levers controlled the speed of the engines, and the supply of gas that filled the silk bag.

"Here is where we shall carry our supplies of condensed food," the professor went on, leading the way back into the middle room. "We will take along capsules that will supply us in a small space with meat, vegetables, soups, tea and coffee, besides milk.

"The water we will get as we speed along, dropping down to earth whenever it is necessary. As for clothing, I have an abundant supply."

He opened a locker and disclosed a pile of fur garments. There were big coats, caps and boots, everything made with a furry surface within as well as without.

"Any one would think you were going into some cold country, professor," said Jack, looking at the warm garments.

"So we are! We are going to find the north pole!" exclaimed the old inventor.