Astounding Stories, February, 1931 - Part 3
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Part 3

"Good Lord!" Lance exclaimed without knowing he did so. Praed--Hay!

The same man! Then that was the secret; that explained things! Hay, the hero of the force!

"You're ent.i.tled to a few explanations," Douglas said. "I'll give you the core of the whole scheme. There's no need to tell you that it must be guarded with your life." He drew his chair closer to Lance's.

"Yes, it's true. The man you knew as Praed in reality is Captain Hay.

You see, Lance, headquarters was taking no chances with what I just called the Torpedo Plan. Every move had to be conducted with the utmost secrecy. Had to be! For the Torpedo Plan is, in some ways, America's last hope.

"Our base, No. 5, was chosen as the center of activity, the base from which the steps paving the way for the plan would be taken. The two best pilots in the service were needed. You and Hay were chosen.

"It was decided it would be best to mask Hay's real ident.i.ty. So, officially, he was sent to the hospital; in reality he came here, under the name of Praed. Why? Because there's a spy somewhere--we don't seem to be able to track him; he's infernally clever--and if the famous Captain Hay was switched to Base 5, putting the two best pilots in the service together, that spy'd know something was in the air. Understand?"

Lance nodded dumbly. A great light was beginning to shower him.

"To more completely mask our true purpose," the colonel continued, "Hay was instructed to make it appear as if he were a spy. And it was a d.a.m.ned hard job! The real spy, whoever he is, and wherever he is, would thus be additionally fooled; for all he'd know, the Slavs might have sent another over to back him up. That's why Hay never shot down an enemy plane. Says something about his skill as a pilot, doesn't it?

Never able to defend himself, save by maneuvering. He's a great flyer!"

Lance could only nod dumbly again.

"After a couple of weeks at this base," Douglas went on, "Hay was to cross the lines one night with you accompanying him. You, unintentionally, would thus occupy the enemy planes while Hay attended to the real business of the evening. And you did splendidly!"

"The real business?" Lance questioned. "What the devil was that? I thought the real business was to get the dope on Hill 333."

"So it was--partially. But also to take the first step of the Torpedo Plan, which was for Hay to switch over to a Slav plane."

_"What?"_

The colonel repeated his statement, somewhat dryly. Lance's square jaw dropped abruptly. "But--but--" he exclaimed, "how the devil could he do that?"

Colonel Douglas grinned.

"By a very neat contraption from the brain of one of our most valuable scientists," he explained. "Hay's scout was specially fitted up before you left; while you were sleeping, in fact. Two experts from Washington arrived with that batch of new recruits this afternoon. A tiny sliding door was cut in the fuselage of the scout and a sort of folding ladder put inside. It was motivated by some rather complex spring-work; but the really ingenious thing about it was the powerful electro-magnet at its base.

"It's rather over my head," he smiled. "I'm a plain fighting man, and sometimes it seems that scientists and not fighting men are going to win this war.... But, at any rate, it worked like this:

"Hay lures, or maneuvers, a Slav plane away from its fellows, and while you're down below entertaining the others, flies wing to wing with it. He touches the spring of his ladder and it shoots out, powerfully magnetized, and clamps onto the steel fuselage of the Slav.

The automatic control keeps Hay's scout steady, and the ladder is so highly attractive that the Slav simply can't get away. Hay crosses the gulf, taking with him the cord which controls the electro-magnet. He forces his way into the Slav, shoots down its pilot, releases the pull of the magnet, and--there you are! Our best pilot in possession of a Slav plane, and clad in a Slav officer's uniform! Do you get the idea now?"

Lance strove for appropriate words. "Gee!" he spluttered. "It's--it's wonderful! And to think I tried to start a fight with Hay! I wish I'd known before. But I suppose," he added, "it was best to let not even me in on it, to keep it absolutely secret."

"Exactly!"

"And now what's Hay's mission?" Lance asked eagerly.

Colonel Douglas' face became sober. "A d.a.m.nably dangerous one, and a mighty desperate one. As I said, the Torpedo Plan, which Hay is striving to carry out, seems to be America's last chance. We're holding the United Slavs, but only just. We simply can't break their line or make any headway against them; and when they do unleash their big push, there's nothing to stop them! So we're gambling everything on this slim hope.

"American science," he continued, "has perfected a weapon which is called the 'flying torpedo.' It's a ghastly thing, too. d.a.m.n it, I actually feel sorry for the poor devils it bursts on! It's a sort of riposte to their disintegrating flame.

"Picture a huge tanklike affair of steel, one hundred feet long.

Picture a few dozen of them! Picture them crammed to overflowing with tons of glyco-scarzite, the most destructive explosive the mind of man has yet conceived. An explosive that can't be hurled in a sh.e.l.l and can't be dropped in a bomb from a plane. A pound or so of it, man, lays waste a square mile of anything! Even our scientists are a bit afraid of it. They've been trying to think up a way of unleashing it at the Slavs. And these flying torpedoes seem to be the answer.

"The torpedoes are purely mechanical. Therefore, they can soar to any height whatsoever. Twenty, thirty, even forty miles. All right. Now, picture a dozen or so of these torpedoes soaring over the most important Slav bases and headquarters, thirty miles above the earth, at night, of course, and absolutely invisible to the most powerful search-rays. They fly without the slightest sounds. Get that? Well, when this squadron of awful death arrives at the exact point over the place to be demolished, the motive force switches off and down they crash. Imagine what will happen when they collide with the ground!"

Douglas, with Lance's tense eyes on him, struck a clenched fist into an open palm.

"Tons of glyco-scarzite, Lance! Unleashed, without warning, from miles above! Thirty of these torpedoes, each a hundred feet long, dropping down on the very heart of the Slav invasion! Killing, blowing to bits, rather, every living thing, every fortification, every tree, every tank, every gun, every flame thrower, every plane in a radius of hundreds of miles!"

"G.o.d!" came from Lance's numb lips. "G.o.d!"

"_But_"--and the colonel held up a straight forefinger--"these torpedoes must be guided from the place they raid!"

Into the silence Lance whispered: "And that--that is Hay's job?"

"That," Douglas confirmed levelly, "is Hay's job--and yours."

Their eyes met; held. And then Lance's clean young face smiled.

"Thank G.o.d, sir," he cried, "that I'm to help strike the blow that'll free our country!"

Colonel Douglas answered his smile with a smile. "Lance," he said, "it's because Washington has put this job into Hay's and your hands that I know--_I know_--it will succeed."

"It will!"

Douglas lowered his voice again. "This is why those flying torpedoes must be guided from the Slav's innermost base.

"In the first place, they fly too high for an accompanying plane to guide them. In the second, the power that releases them to hurtle downwards must come from the enemy base itself, to permit of no possible error. This must not fail!"

"But," put in Lance, "how do the torpedoes fly? What motivates them?"

"A closely guarded secret, of course," he was told. "I merely possess a slight comprehension of it. I know that it is an adaptation of that discovery of Professor Singe, two years ago--cosmic attraction.

Eventually, perhaps, it will permit interplanetary travel. This use of it is simply the beginning. But it is to America's everlasting glory that a scientist of hers developed it.

"You know how a sliver of wood is propelled by the ripples of a pond?

Vibrations of the water, really. Well, evidently there are somewhat similar vibrations in the ether, cosmic force. Each one of these flying torpedoes contains a highly expensive, intricate mechanism which transforms this invisible vibration-power into material propulsion. The mechanism is adjusted to propel the torpedo at such an alt.i.tude in such a direction. We possess no means of setting the machines to _stop_ at a certain place and so tumble earthwards. That's where you and Hay come in.

"Hay is now, with forged doc.u.ments, pa.s.sing himself off as a regular Slav pilot. He speaks the tongue. Two nights from now, you, Lance, keep a rendezvous with Hay at an isolated ranch in the Lake Tahoe country--the Sola Ranch, where we staged that big fight a few months back."

Lance nodded.

"In your plane is an instrument which is the kernel of the scheme. It arrives here to-morrow. It's a device which shoots an invisible beam fifty miles into the air, a negative beam, in sympathy with the machinery on the torpedoes. Hay sets this device near the Slav headquarters. The torpedo squadron takes off from a few hundred miles behind here, flying in the direction of the heart of the Slav forces.

When they run into the beam, their motive power is nullified, and down they fall. Crash! The Slavs are wiped out. Our troops charge forward in a grand attack; the Slavs, with no armament, no reinforcing troops, no supply of tanks and flame throwers, crumple. The invasion of America is put to an end!"