The Silver Menace by Murray Leinster (read a book TXT) 📖

growing gray in their efforts to keep any fragment of silvery stuff from reaching the water-supply pipes. If that occurred the city would be helpless. As it was, the authorities were beginning to realize that they could not keep up indefinitely the fights against the ever-encroaching horror, and plans were being secretly prepared by which the entire population could be shipped away from the town when the Silver Menace could be fought off no longer.

And all this time, when the government of the greatest city in the world was recognizing the hopelessness of the city's plight and was preparing means to abandon the tall skyscrapers to the evil-smelling slime that would creep upon all the buildings and fill air the streets with glistening horror; all this time Davis and Nita spent gazing into each other's eyes, oblivious to everything but each other.

The world breathed a sigh of relief when the government announced with a fanfare of trumpets that it had found—not a way of destroying the Silver Menace, but a means of checking it. Tall board fences would be built and covered with lubricants, with greases, and other water-resisting substances. The Silver Menace would creep up to them and be helpless to clamber over them. The world would protect itself by means of dykes a thousand times more extensive than those of Holland. Men set to work frantically to build these defenses against the creeping silver flood. Five hundred miles of fencing was completed within a week, and ten thousand men increased the force of laborers day by day. Men stood behind these bulwarks and watched the slowly approaching silver tide. It crept up to the base of the oily, greasy boarding. It checked a moment.

Then it slowly and inexorably began to climb them. The lubricants were absorbed as food by the microscopic animals, who flowed over the tall defenses and resumed their slow advance over the whole earth!

CHAPTER VI.

Davis smiled expansively and idiotically as he looked across the dinner table at Nita. Gerrod and Evelyn tried to join in his happiness, but they were both worried over the ever-increasing threat of the Silver Menace. The government's tall dykes had proven useless, and even then there were creeping sheets of the sticky slime expanding over the whole countryside. Davis and Nita, however, were utterly uninterested in such things. They gazed upon each other and smiled, and smiled. Evelyn looked at them indulgently, but Gerrod began to be faintly irritated at their absorption in each other when the world was threatened with suffocation under a blanket of slimy horror.

"It is indeed wonderful," he said with a quizzical smile, "that you two have decided to marry each other, but has it occurred to either of you that there is quite an important problem confronting the world?"

"Yes," said Davis quite seriously. "Nita's father has to be placated before we can marry."

"Please!" said Gerrod in a vexed tone. "Please stop looking at each other for one instant. I know how it feels. Evelyn and I indulge even at this late date, but for Heaven's sake think of something besides yourselves for a moment."

"Oh, you mean the silver stuff," said Nita casually. "Daddy has offered a huge reward to any one who can fight it successfully. He and half a dozen other steamship men put together and made up a purse. About two millions, I believe."

Davis was looking at her, paying but little attention to what she was saying, simply absorbed in looking. Gerrod saw his expression.

"Don't you ever use your head?" he demanded. "Here you are worrying about Nita's father, and there you have a reward offered that would clear away all his objections at once."

"Why—why, that's an idea!" said Davis.

"Glad you think so," said Gerrod acridly. "Suppose you two talk things over. You have a brain, Davis, even if you rarely use it."

Davis laughed good-naturedly.

After dinner Evelyn and her husband retired to the laboratory again. Neither of them wanted to waste any time that might be useful in developing a means of fighting the Silver Menace. They were deep in their work when Davis and Nita rushed in upon them.

"We've got it!" said Davis dramatically.

Nita was clinging to his arm, and looked immensely proud of him.

"What have you?" asked Gerrod practically.

"A way to clear off the Silver Menace," said Davis. "You know the animalcules have very fragile little shells. In the war we had to fight submarines with armored shells. We got the subs with depth bombs dropped near them. The concussion smashed them up. Now let's take bombs and drop them in the silver sea. The concussion will wreck the little shells for miles around."

Gerrod thought the idea, over carefully.

"It might turn the trick," he said thoughtfully.

Davis beamed.

"We'll try it at once," he said enthusiastically. "Or, rather, we'll start first thing in the morning. We must have light to experiment by. I'll phone the aviation field at once to have the big plane ready."

"I'm going, too," said Nita determinedly.

"We'll all go," said Davis expansively.

The plane left the ground shortly after daybreak. It was a curious sight to see the absolutely cloudless sunrise. The sky paled to the east, then glowed fiercely red, lightened to orange and the sun rolled up above the horizon. The big airship circled grandly until it had reached a height of nearly ten thousand feet, then swung for the east and sped away.

Nita sat in the seat beside the pilot, her face flushed with excitement. Gerrod and Evelyn occupied seats farther back, and the single engineer leaned against the rear of the car, where he could keep both ears open to the roar of his engines. The twin bomb racks along the outside of the car were filled with long, pear-shaped, high-explosive missiles, and the electric releasing switches were close beside Davis' hand. A case of hand grenades was carefully packed in the car, too.

The plane passed over green fields far below, with strangely still and shining streams and rivers winding in and out. From the banks of most of those streams glistening blankets of a silvery texture spread slowly and inexorably over the surrounding fields. Before them they saw what appeared to be the end of the world. Green fields and luxuriantly foliated forests gave place to a field of shining silver, which undulated and clumsily followed the conformation of the land and objects it had overwhelmed. Here one saw ungainly humps that seemed made of burnished metal. The rounded contours told that great trees had succumbed to the viscid mass of animalcules. There was a group of more angular forms with gaping black orifices in their glittering sides told of a village that had been abandoned to the creeping horror. The open windows of the houses yawned black and amazed, though now and then thick stalactites hung pendulously across their openings.

Above all these the big plane sped. It swept on toward the open sea—or what had been the open sea until the Silver Menace had appeared. Soon the shore was left behind, and the huge aëroplane was flying between the two skies—the real sky above and the reflected sky below. Only a thin line from far inland showed dark. All the rest seemed but a universe of air without a horizon or any sign of tangibility. Davis kept his eyes on his instruments, and presently announced:

"I think we're far enough out. We'll drop our first bomb here."

He pressed the release switch as he spoke. The plane lifted a little as the heavy bomb dropped. For a few seconds there was no sound but the roaring of the motors, but then the reverberation of the explosion below reached them.

"Take a look below," said Davis, banking the machine sharply and beginning to swing in a narrow circle.

Gerrod looked down. He saw what seemed to be a ring of yellowish smoke, and a dark-blue spot in the middle of the silvery mass beneath them.

"It did something," he reported, "There's a dark spot on the surface. I can't judge how large it is, though."

Davis released a second bomb, and a third. Gerrod could watch them as they fell. They dwindled from winged, pear-shaped objects to dots. Then there was a flash far below and a spurting of water and spray. In a moment that had subsided, and he saw a second and larger dark-blue spot beside the first.

"I believe you've done it," said Gerrod excitedly. "You've certainly destroyed the silvery appearance. Dare you go lower?"

"Surely," said Davis cheerfully. The plane dived like an arrow, and flattened out barely five hundred feet above the surface.

Gerrod examined the dark spots through glasses. The disturbance had not completely abated, and he could see indubitable waves still radiating from the Spot where the bombs had fallen. Davis grinned like a boy when Gerrod told him.

"We'll land in the open space and make sure," he said suddenly, and the plane dived again.

Before Gerrod could protest they were just skimming the surface of the silver sea. The plane settled gently into the now liquid spot of ocean, and Davis shut off the motors. The occupants of the cabin looked eagerly out of the windows. All about them, in a space perhaps sixty or seventy yards across, the water was yellowed and oily, but was certainly water, and not the horrible, jellylike stuff the world had so much cause to fear. The concussion from the high-explosive bomb had shattered the fragile shells of the silver animalcules, and, with their protection gone, they had relapsed into liquid. At the edge of that space, however, the silver-sea began again, as placid and malignant as before.

The plane floated lightly on the surface while the little party congratulated itself.

"It works," said Davis proudly. Nita squeezed his hand ecstatically.

"I knew he'd think of something," she announced cheerfully.

Evelyn and Gerrod were estimating the area of cleared water with gradually lengthening faces.

"Let's see how much space a hand grenade clears," suggested Evelyn thoughtfully.

Davis opened the case and took out one of the wicked little bombs. He wriggled through a window and out on the massive lower plane of the flying boat. Balancing himself carefully, he flung the grenade some sixty yards into the untouched silver sea. It burst with a cracking detonation and amid a fountain of spume and spray. The four of them eyed the resultant area of clear water.

"How wide do you suppose that is?" asked Gerrod rather depressedly.

"Ten—no, fifteen yards by fifteen."

So excited were they all that they did not notice a phenomenon that began almost instantly. The tiny animalcules that formed the silver sea reproduced rapidly when given merely moisture. Here they had that moisture, and, in addition, the bodies of all their dead comrades to feed upon. The conditions were ideal for nearly instantaneous reproduction. As a result the waves from the high-explosive bombs had hardly subsided when the open space began, almost imperceptibly, to be closed by fresh masses of the Silver Menace. The open space became covered with a thin film which became thicker—thicker——

"And how much explosive was in that grenade?"

"Two ounces of TNT." Davis began to catch the drift of the questions, and his happy expression was beginning to fade away.

"Two ounces of TNT cleared up roughly a hundred and fifty square yards of silver sea. That's, say, seventy-five square yards to the ounce of high explosive." Evelyn was working rapidly with her pencil. "That works out—five hundred pounds of TNT needed to clear a square mile of the Silver Menace. We have fifteen hundred miles of coast that has been invaded to an average depth of at least five miles."

Gerrod took up the calculations with a dismal face. His pencil moved quickly for a moment or so.

"We'd need over eighteen hundred tons of TNT to clear our coasts," he said dolefully. "That wouldn't touch the silver sea itself or keep it from growing again. It grew inland those five miles in two weeks at most. That's nine hundred tons a week needed to hold our own without attacking the silver sea at all. We'd have to have forty-six thousand tons a year to hold it, let alone go after the beasts out here, and in the meantime we'll have no rain, consequently no crops. It's a cheerful outlook."

They had been oblivious of what was happening immediately about the seaplane.

Nita first saw the danger.

"Look!" she gasped.

They had been too much absorbed in gloomy thoughts to notice their predicament. The open space in which they had landed was now a shining, glittering mass of the Silver Menace. But what Nita pointed to was of more imminent danger. The sticky, horrible mass was creeping up the float on which the seaplane rode and up the smaller floats at the ends of the wings. Tons of the silver horror had already accumulated upon the under surface of the great planes and weighted down the aëroplane until it was impossible for it to rise in the air. And it