"You are considered to be the one man who might be able to cope with the problem, and are ordered to report to the Secretary of War, in person, immediately."

Hart was electrified into instant activity. "Here," he said in a voice of authority that commanded the official's attention and respect, "see that this package of bonds is delivered at once to the addressee and that the addressor is advised of its safe arrival. We're off at once."

Suiting action to the words, he thrust my packet into the hands of the astonished supervisor. Then, turning sharply on his heel, he flung back, "Advise the Secretary of War that I shall report to him in person in less than one hour."

As we stepped through the entrance of the _Pioneer_, he shot a final look at the official and laughed heartily at his sudden accession of energy. We had not the slightest doubt that Hart's orders would be immediately and efficiently carried out.

In precisely forty-five minutes, we stood before the desk of Lawrence Simler, then Secretary of War, in Washington.

"You are Mr. Hartley Jones?" inquired the stern-visaged little man.

"I am, Mr. Secretary, and these are my friends and co-workers, George Boehm and John Makely."

The Secretary acknowledged the introduction gravely, then plunged into the heart of the matter at hand with the quick energy for which he was famed.

"It may or may not be a serious situation," he said, "but certainly it has thus far been quite alarming. In any event, we have taken the matter out of the hands of the Air Traffic Bureau. We are prepared to defy the ultimatum of the enemy, whoever he may be. But we want your help, Mr.

Jones. Every ship of the Air Navy will be in the upper levels within the prescribed twenty-four hours, and we will endeavor to stave off their attacks until such time as you can fit the _Pioneer_ for a journey to their headquarters."

"How can your antiquated war vessels, capable of hurling a high explosive sh.e.l.l no more than fifty miles, fight off an enemy that is thousands of miles distant?" asked Hart.

"It is believed by the research engineers of the government that, though their headquarters may be located at a great distance, the raiders drop to a comparatively low alt.i.tude at the time of one of their attacks, returning immediately thereafter to their base."

Hart Jones shook his head. "The engineers may be correct," he stated; "but how on earth can you expect a little vessel like the _Pioneer_ to battle an enemy who is possessed of these terribly destructive weapons and who has sufficient confidence in his own invulnerability to declare war on the greatest country on earth?"

Secretary Simler dropped his voice to a confidential tone, and his keen gray eyes flashed excitement as he unfolded the details of the discoveries and plans of the War Department. We three listened in undisguised amazement to a tale of the unceasing labors of our Secret Service agents in foreign countries, of elaborate experiments with deadly weapons and the chemicals of warfare.

We heard of marvelous new rays that could be projected for many miles and destroy whole armies at a single blast; rays that would, in less time than that required to tell of the feat, reduce to a ma.s.s of fused metal the greatest firstline battleships of the old days of ocean warfare. We heard of preparations for defensive warfare throughout the civilized world, preparedness that insured so terrible and final a war that it was literally impossible for a great world conflagration to again break out. We learned that the present mysterious signs of a coming war could not possibly have originated in any country on earth, else they would have been known of long in advance, due to the network of the Secret Service system. This war, so unexpectedly thrust upon us, was undoubtedly a war of planets!

"But," objected Hart, "the messages were in English, were they not?"

"They were," continued Secretary Simler, "and that puzzled our experts in the beginning. But, it may well be that our enemy from out the skies has had spies among us for many years and could thus have learned our languages and radio codes. In any event, we are to meet destructive rays with others equally destructive, and you, Hartley Jones, are the man who can make our effectiveness certain."

"I?"

"Yes. How long a time will be required in fitting out the _Pioneer_ for reliable s.p.a.ce flying?"

Hart Jones pondered the matter and I could see that he was overjoyed at the prospect of getting into the thing in earnest. "About one week," he replied, "providing you can send a force of fifty expert mechanics to my hangar at once and supply all material as fast as I shall require it."

"Excellent," said the Secretary. "We'll have the men there in a few hours and will obtain whatever you need, regardless of cost, for immediate delivery. Incidentally, there will be several scientists as well, who will supervise the installation of two types of ray generators and their projecting mechanisms on the _Pioneer_. You will need them later."

"I don't doubt we shall," said Hart. "And now, with your permission, we shall leave for the hangar. I'm ready to start work."

"Capital!" Secretary Simler pressed every one of a row of b.u.t.tons set in his desk top. We were dismissed.

"Well," said I, when we reached the outside, "he has given you quite a job, Hart!"

"You said something," he replied. "But, if this threat from the skies proves as real and as calamitous as I think it will, we all have our work cut out for us."

"Do you really believe this enemy comes from another planet?" asked George as we entered the _Pioneer_ for the trip home.

"Where else can they be from?" countered Hart. "But, really it makes no difference to us now. We have to go after them in earnest. Don't want to quit, do you, George?"

"Wha-a-at?" shouted George, as he jerked savagely at the main switch of the _Pioneer_. "You know me better than that, Hart. Did I ever let you down in anything?"

"No," admitted the smiling Hart, "you never did, bless your heart. But Jack here is another matter. He has a wife and two kids to look after.

That lets him out automatically."

My heart sank at the words, for I knew that he meant what he said. And, truth to tell, I saw the justice in his remarks.

"But, Hart," I faltered, "I'd like to be in on this thing."

"I know you would, old man. But I think it's out of the question, for the present at least. You can help with the reconstruction of the _Pioneer_, however."

And meekly I accepted his dictum, though with secretly conflicting emotions. Little did I realize at the time that Hart knew far more than he pretended and that he had merely attempted to salve his own conscience in this manner.

I was very anxious to return to my family, and, as I sped homeward in a taxicab after the _Pioneer_ landed at her own hangar, my mind was filled with doubts and fears. Secretary Simler had been very brief in his talk, but his every word carried home the gravity of the situation. What if these invaders carried the war to the surface? Suppose they seared the countryside and the cities and suburbs with rays of horrible nature that would shrivel and blast all that lay in their path? My heart chilled at the thought and it was a distinct relief when I gazed on my little home and saw that it was safe--so far. I paid the driver with a much too large bank note and dashed up my own front steps two at a time.

A few hours later I tore myself away and returned to the hangar, where the _Pioneer_ now reposed in a scaffolded cradle. The sight which met my eyes was astonishing in the extreme, for the hangar had been transformed into a huge workshop with seemingly hundreds of men already at work. It was a scene of furious activity, and, to my utter amazement, I observed that the _Pioneer_ was already in an advanced stage of disa.s.sembly.

I had no difficulty in locating Hart Jones, for he was striding from lathe to workbench to boring mill, issuing his orders with the sureness and decision of a born leader of men. He welcomed me in his most brisk manner and immediately a.s.signed me to a portion of the work in the chemical laboratory--something I was at least partly fitted for.

We labored far into the night, when a siren called us to rest and food.

This was to be a night and day job, and not a man of those on duty gave thought to the intense nervous and physical strain. Sixty-five of us I learned there were, though it had seemed there were several times that number.

During the rest period, Hart switched on the large television and sound mechanism of the public news broadcasts. Great excitement prevailed throughout the United States, for there had been a leak and the news had gone abroad regarding the message from the enemy. There was widespread panic and disorder and the government was besieged with demands for authentic news. The twenty-four hours of grace had nearly expired.

Finally the public was told of what actually was happening. Our entire fleet of one thousand air cruisers was in air-level six, waiting for the enemy. America was going to fight in earnest!

Flashes of our air cruisers in construction and in action came over the screen; voice-vision records of the popular officers of the fleet followed in quick succession. Then came the blow--the first of the strange war.

Two vessels of the air fleet had been destroyed by the triple rays and pillar of fire! Fifty cruisers rushing to the scene had been unable to find any traces of the source of the deadly rays. And, this time, there was an alarming added element. The pillar of fire had risen from a point near Gadsden in Alabama and, in its wake, there spread a sulphurous, smoldering fire that crept along the ground and destroyed all in its path. Farms, factories, and even the steel rails of the railroads were consumed and burned into the ground as if by the breath of some tremendous blast furnace. Hundreds of inhabitants of the section perished, and it was reported that the fumes from the strange fires were drifting in the direction of Birmingham, terrifyingly visible in blue-green clouds of searing vapor.

With the first news of the disaster came a wave of fear that spread over the country with the rapidity of the ether waves that carried the news.

Then came stern determination. This enemy must be swept from the skies!

Gatherings in public places volunteered en ma.s.se for whatever service the government might ask of them. The entire world was in an uproar, and from Great Britain, France, Germany and Russia, came immediate offers of their air fleets to a.s.sist in fighting off the Terror.