by Various
"I believe that fellow sees something!" exclaimed Carnes.
As he spoke, three green Very lights came from the cockpit of the plane. The tank driver gave a grunt of satisfaction and turned the nose of his vehicle in that direction. The second tank followed.
Hardly had they turned in the new direction before the ground began to get soft under their tracks and the heavy vehicles began to sink. The driver of the Doctor's tank forced it ahead, but the tank sank deeper in the mire until water flowed in around the feet of the occupants.
"I reckon we'll have to get out and walk pretty soon, Doctor," said the driver.
Dr. Bird grunted in acquiescence. The tank made its way forward a few yards before the engine sputtered and died. The second tank stopped when the first one did, fifty yards behind it. Donning vitrilene helmets and taking vitrilene shields in their hands, the crews of both tanks climbed out into the waist-deep water and gathered around the Doctor for orders.
"Form a skirmish line at ten-pace intervals and cross the swamp," he directed. "We may meet with no opposition, but if there is, the more scattered we are, the safer we will be. You all have hand grenades as well as your rifles?"
A murmur of assent answered him and the line formed and started across the swamp. They had gone perhaps a hundred yards when three red lights came from one of the planes circling overhead.
"Down!" cried the doctor, dropping to his knees in the muck.
Four hundred yards ahead of them a concrete platform emerged from the marsh and rose slowly into the air. It was roofed with a dome of what looked like plate glass, but which the doctor shrewdly suspected was vitrilene. When the base of the platform was two-feet above the level of the water the dome slid silently aside disclosing two men bending over a tiny gun. Dr. Bird leveled his binoculars.
"That's the Breslau gun model that was stolen as sure as I'm a foot high!" he cried. "They must have made some miniature shells and be planning to fire it."
Slowly a pall of intense blackness rose from the marsh and enveloped the platform and hid it from view. A whining noise came from overhead, and then a crash like a thunderbolt. The blast of the explosion threw the attackers face down in the swamp, and when they arose and looked back there was merely a gaping hole where the leading tank had been. The second tank suddenly seemed to rise in the air and fly into millions of tiny fragments, and a second thunderous blast sent them again to their knees.
"Radite!" bellowed Dr. Bird to Carnes. "Imagine the effect if that had been a full charge fired from a completed Breslau gun! Watch the planes, now. I think they are going to drop a few eggs on them."
The black mist cleared as if by magic and the platform was in plain view. The big glass dome rolled back into place as the two planes swept over at an elevation of two thousand feet. From each one a small black cigar-shaped object was released and fell in a long parabola toward the earth. The glass dome which had been closing over the gun platform rolled quickly back and a long beam of intense blackness pierced the heavens. First one and then the other of the falling bombs disappeared from view into it, and then the black column faded from view. The two bombs fell with increasing speed but the dome closed over the platform before they struck. The two hit the dome at almost the same instant and instead of the blinding crash they expected, the watchers saw the bombs rebound from the dome and fall harmlessly into the water.
"Stymied!" muttered the doctor. "I wonder what other properties that confounded lamp has."
He resumed his advance, Carnes and the soldiers keeping abreast of him. When they were within two hundred yards of the platform it rose again and the transparent dome rolled back. A beam of black shot forth over the swamp, searching them out and hiding them from view. First one and then another felt the effects of the black beam; but the vitrilene which the Doctor had provided stood them in good stead, and, aside from a slight shortening of their breath, none of the attackers felt any the worse.
"Come on, men!" cried the Doctor as his athletic figure plowed forward through the breast-deep water. "That is their worst weapon and it is harmless against us!"
Cheering, they fought their way toward the platform. It sunk for a moment and then rose again. As the dome swung back a sharp crackle of machine-gun fire sounded and the water before them was whipped into foam by the plunging bullets. One of the soldiers gave a sharp cry and slumped forward into the water.
"Fire at will!" shouted the lieutenant in command.
A crackle of rifle fire answered the tattoo of the machine-gun, and the sharp ping of bullets striking on the dome could be plainly heard. An occasional shot kicked up a spurt of white dust from the concrete, but the machine-gun kept up a steady rattle of fire and the soldiers kept their heads almost at the level of the water. There came the roar of an airplane motor, and one of the planes swept over the platform, a hundred yards in the air, with two machine-guns spraying streams of bullets onto the platform. Two men abandoned their machine-gun and crouched under the partially folded-back dome as the second plane swept over, and Dr. Bird took advantage of the lull to advance his party a few yards nearer. Again the defenders of the platform rushed to their gun, but the first plane had turned and swooped down with both guns going, and again they were forced to take shelter while the Doctor and his force made another advance.
The second plane had turned and followed the first, but the defenders had had enough. The transparent dome closed over them and the platform sank into the marsh. With a shout, Dr. Bird led the way forward again.
The attackers were within a hundred yards of the platform when it again rose above the surface of the water. The guns had disappeared, but in their place stood an airship. It was a small affair with stubby wings above which were two helicopter blades revolving at high speed. No sound of a motor could be heard.
The transparent dome rolled back and like a bullet the little craft shot into the air, followed by a futile volley from the soldiers. Hardly had it appeared than the two airplanes bore down on it with machine-guns going. The helicopter paid no attention to them for a moment, and then came a puff of smoke from its side. The leading plane swerved sharply and the helicopter fired again. The leading plane maneuvered about, trying to get a machine-gun to bear, while the second plane climbed swiftly to get above the helicopter and pour a deadly stream of fire down into it. It gained position and swooped down to the attack, but another puff of smoke came from the side of the helicopter and there was a thunderous report and a blinding flash in the sky. As the smoke cleared away, no trace of the ill-fated plane could be seen. The helicopter hung motionless in the air as though daring the remaining plane to attack.
The plane accepted the challenge and bore down at full speed on the stranger. Again came a puff of smoke, but the plane swerved and an answering shot came from its side. It was above the helicopter, and the shell which missed its mark plunged to the ground. When it struck there came a roar and a flash and the whole earth seemed to shake. The helicopter shot upward into the air and forward, both its elevating fans and its propellers whirling blurs of light. The airplane followed at its sharpest climbing angle, but was helpless to compete with its swifter climbing rival.
"He's got away!" groaned Carnes.
"Not yet, old dear!" cried the Doctor hopping with excitement. "He isn't safe yet. I never told you, but one Breslau gun had been made and it is on that plane. It has deadly accuracy and is good for fifteen miles. That's Lieutenant Dreen at the controls and Mason at the gun."
As he spoke the plane swung around and made a half loop. For a few yards it flew upside down and then whirled swiftly. As it turned there came a sharp report and a puff of smoke from its rear cockpit. High above, the helicopter had ceased climbing and hovered motionless. As the plane fired, the helicopter shot forward like an arrow from a bow, and thereby spelled its doom. Not for nothing did Captain Mason bear the title of the best aerial gunner in the Air Corps. He had foreseen what the action of his opponent would be and had allowed for just such a move. Far up in the s
ky came a blinding flash and a cloud of smoke. When the smoke cleared the sky was empty, except for a little scattered debris falling slowly to the ground.
And that's that!" exclaimed Dr. Bird as he finished his examination of the underground laboratory with which the gun platform connected. "The lamp has gone to glory with Breslau's gun model and two of the best brains of the Young Labor party. I am sure that Stanesky was one of those two men. I wish the whole gang had been on board."
"Don't you think that this is the end of it, Doctor?" asked Carnes.
"No, Carnes, I don't. We know that the real brains of this outfit is Saranoff, and Saranoff is still alive. He probably won't try to use his black lamp again, because I will have a defence against it in a short time, now that I have seen it in action, but he'll try something else. The whole object of life to a loyal citizen of Bolshevikia is to reduce the whole world to the barbarous level in which they hold Russia, and they will spare no pains or effort to accomplish it. The greatest obstacle to their success at present is the President of the United States. He is loved and respected by the whole world, and if he is spared he will forge the world into a great machine for the preservation of peace and universal good will. That would be fatal to Bolshevikia's plans, and they will spare no effort to remove him. By the grace of God, we have saved him from harm so far, but until we remove Saranoff permanently from the scene, I will never feel safe for him."
"What do you suppose they'll try next, Doctor?"
"That, Carnes, time alone will tell."
* * *
Contents
THE GREAT DROUGHT
By Capt. S. P. Meek
"Is the maneuver progressing as you wish. Dr. Bird?" asked the Chief of the Air Corps.
The famous scientist lowered his binoculars and smiled.
"Exactly, General," he replied. "They are keeping a splendid line."
"It is the greatest concentration of air force that this country has ever seen," said General Merton proudly.
With a nod, Dr. Bird raised his glasses to his eyes and resumed his steady gaze. Five thousand feet below and two miles ahead of the huge transport plane which flew the flag of the Chief of the Air Corps, a long line of airplanes stretched away to the north and to the south. Six hundred and seventy-two planes, the entire First Air Division of the United States Army, were deployed in line at hundred-yard intervals, covering a front of nearly forty miles. Fifteen hundred feet above the ground, the line roared steadily westward over Maryland at ninety miles an hour. At ten-second intervals, a puff of black dust came from a discharge tube mounted on the rear of each plane. The dust was whirled about for a moment by the exhaust, and then spread out in a thin layer, marking the path of the fleet.
"I hope the observers on the planes are keeping careful notes of the behavior of those dust clouds," said Dr. Bird after an interval of silence. "We are crossing the Chesapeake now, and things may start to happen at any moment."
"They're all on their toes, Doctor," replied General Merton. "I understood in a general way from the President that we are gathering some important meteorological data for you, but I am ignorant of just what this data is. Is it a secret?"
Dr. Bird hesitated.
"Yes," he said slowly, "it is. However, I can see no reason why this secret should not be entrusted to you. We are seeking a means of ending the great drought which has ravaged the United States for the past two years."
* * * * *
Before General Merton had time to make a reply, his executive officer hastened forward from the radio set which was in constant communication with the units of the fleet.
"Two of the planes on the north end of the line are reporting engine trouble, sir," he said.
Dr. Bird dropped his glasses and sat bolt upright.
"What kind of engine trouble?" he demanded sharply.
"Their motors are slowing down for no explainable reason. I can't understand it."
"Are their motors made with sheet steel cylinders or with duralumin engine blocks?"
"Sheet steel."
"The devil! I hadn't foreseen this, although it was bound to happen if my theory was right. Tell them to climb! Climb all they know! Don't let them shut off their motors for any reason, unless they are about to crash. Turn this ship to the north and have the pilot climb--fast!"
A nod from General Merton confirmed the doctor's orders. The line of planes kept on to the west, but the flagplane turned to the north and climbed at a sharp angle, her three motors roaring at full speed. With the aid of binoculars, the two ships in trouble could be picked out, falling gradually behind the line. They were flying so slowly that it seemed inevitable that they would lose flying speed and crash to the ground.
"More speed!" cried the doctor. "We've elevation enough!"
The altimeter stood at eight thousand feet when the pilot leveled out the flagplane and tore at full speed toward the laboring ships. The main fleet was twenty miles to the west.
* * * * *
They were almost above the point where the two planes had first began to slow down. As they winged along, the three motors of the flagplane took on a different note. It was a laboring note, pitched on a lower scale. Gradually the air-speed meter of the ship began to show a lower reading.
"Locate us on the map, Carnes!" snapped Dr. Bird.
Operative Carnes of the United States Secret Service bent over a large-scale map of Maryland, spread open on a table. With the aid of the navigating officer, he spotted on the map the point over which the plane was flying.
"There goes Burleigh's ship!" cried the executive officer.
There was a gasp from the occupants of the flagplane's cabin. Far below them, one of the crippled planes had slowed down until it had lost flying speed. Whirling like a leaf, it plunged toward the ground. Two small specks detached themselves from the falling mass. They hovered over the falling plane for an instant. Suddenly a patch of white appeared in the air, and then another. The two specks fell more slowly.
"Good work!" exclaimed General Merton. "They took to their 'chutes just in time."
"We'll be taking them in a few minutes if our motors don't pick up!" replied the executive officer.
Far below them, the doomed plane crashed to the ground. As it struck there was a blinding flash followed by vivid flames as the gasoline from the bursted tank ignited. The two members of the crew were drifting to the east as they fell. It was evident that they were in no danger.
"Where is Lightwood's plane?" asked General Merton anxiously.
"It's still aloft and making its way slowly north. He intends to try for an emergency landing at the Aberdeen Proving Ground field," replied the executive officer.
"That's where we had better head for," said Dr. Bird. "I hope that the charge on Captain Lightwood's plane discharges through the tail skid when he lands. If it doesn't, he'll be in serious danger. Follow him and we'll watch."
* * * * *
Five thousand feet below them, the crippled plane limped slowly along toward Aberdeen. It was gradually losing elevation. Two specks suddenly appeared in the air, followed by white patches as the parachutes opened. Captain Lightwood and his gunner had given up the unequal fight and taken to the air. As the ship struck the ground, again there was a blinding flash, followed by an inferno of roaring flames.
"We're not in much better shape than they were, General," said the executive officer as he came back from the control room where the pilots were heroically striving to keep their motors turning over fast enough to keep up flying speed. "We'd better get into our 'chutes."
"The Proving Ground is just ahead," said the doctor. "Can't we make it by sacrificing our elevation?"
"We're trying to do that, Doctor, but we're down to four thousand now and falling fast. Get ready to jump."
Dr. Bird buckled on the harness of the pack parachute which the executive officer offered him. The rest of the crew had hurriedly donned their packs and stood ready.
For another five minutes the plane struggled
on. Suddenly a large flat expanse of open ground which had been in sight for some time, seemed to approach with uncanny rapidity.
"There's the landing field!" cried the General. "We'll make it yet!"
Lower and lower the plane sank with the landing field still too far away for comfort. The pilot leveled off as much as he dared and drove on. The motors were laboring and barely turning over at idling speed. They passed the nearer edge of the field with the flagplane barely thirty feet off the ground. In another moment the wheels touched and the plane rolled to a halt.
"Don't get out!" cried Dr. Bird.
He looked around the cabin and picked up a coil of bare antenna wire which hung near the radio set. He wrapped one end of the wire around the frame of the plane. To the other end, he attached his pack 'chute.
"Open the door!" he cried.
* * * * *
As the door swung open, he threw the 'chute out toward the ground. As it touched, there was a blinding flash, followed by a report which shook the plane. A strong odor of garlic permeated the air.
"All right!" cried the doctor cheerfully. "All out for Aberdeen. The danger is past."
He set the example by jumping lightly from the plane. General Merton followed more slowly, his face white and his hands shaking.
"What was it, Doctor," he asked. "I have been flying since 1912, yet I have never seen or heard of anything like that."
"Just a heavy charge of static electricity," replied the doctor. "That was what magnetized your cylinder walls and your piston rings and slowed your motors down. It was the same thing that wrecked those two ships. Unless it leaks off, the men of some of your other ships are due to get a nasty shock when they land to-night. I discharged the charge we had collected through a ground wire. Here comes a car, we'll go up to Colonel Wesley's office. Carnes, you have these maps?"
