high in the air, and carried by invisible currents in every direction, immense volumes of black smoke, or vapor, which blotted out of sight everything below them!
South, north, west and east, the curtain of blackness rapidly spread, until the whole face of the planet as far as our eyes could reach, and the airships thronging under us, were all concealed from sight!
Mars had played the game of the cuttlefish, which, when pursued by its enemies, darkens the water behind it by a sudden outgush of inky fluid, and thus escapes the eye of its foe.
The Great Smoke Cloud.
Our Warriors Find the Martians to Be Foes Worth Fearing.
The eyes of man had never beheld such a spectacle!
Where a few minutes before the sunny face of a beautiful and populous planet had been shining beneath us, there was now to be seen nothing but black, billowing clouds, swelling up everywhere like the mouse-colored smoke that pours from a great transatlantic liner when fresh coal has just been heaped upon her fires.
In some places the smoke spouted upward in huge jets to the height of several miles; elsewhere it eddied in vast whirlpools of inky blackness.
Not a glimpse of the hidden world beneath was anywhere to be seen.
Mars Wears Its War Mask.
Mars had put on its war mask, and fearful indeed was the aspect of it!
After the first pause of surprise the squadron quickly backed away into the sky, rising rapidly, because, from one of the swirling eddies beneath us the smoke began suddenly to pile itself up in an enormous aerial mountain, whose peaks shot higher and higher, with apparently increasing velocity, until they seemed about to engulf us with their tumbling ebon masses.
Unaware what the nature of this mysterious smoke might be, and fearing it was something more than a shield for the planet, and might be destructive to life, we fled before it, as before the onward sweep of a pestilence.
Directly underneath the flagship, one of the aspiring smoke peaks grew with most portentous swiftness, and, notwithstanding all our efforts, in a little while it had enveloped us.
The Stifling Smoke.
Several of us were standing on the deck of the electrical ship. We were almost stifled by the smoke, and were compelled to take refuge within the car, where, until the electric lights had been turned on, darkness so black that it oppressed the strained eyeballs prevailed.
But in this brief experience, terrifying though it was, we had learned one thing. The smoke would kill by strangulation, but evidently there was nothing especially poisonous in its nature. This fact might be of use to us in our subsequent proceedings.
"This spoils our plans," said the commander. "There is no use of remaining here for the present; let us see how far this thing extends."
At first we rose straight away to a height of 200 or 300 miles, thus passing entirely beyond the sensible limits of the atmosphere, and far above the highest point that the smoke could reach.
From this commanding point of view our line of sight extended to an immense distance over the surface of Mars in all directions. Everywhere the same appearance; the whole planet was evidently covered with the smoke.
A Wonderful System.
A complete telegraphic system evidently connected all the strategic points upon Mars, so that, at a signal from the central station, the wonderful curtain could be instantaneously drawn over the entire face of the planet.
In order to make certain that no part of Mars remained uncovered, we dropped down again nearer to the upper level of the smoke clouds, and then completely circumnavigated the planet. It was thought possible that on the night side no smoke would be found and that it would be practicable for us to make a descent there.
But when we had arrived on that side of Mars which was turned away from the sun, we no longer saw beneath us, as we had done on our previous visit to the night hemisphere of the planet, brilliant groups and clusters of electric lights beneath us. All was dark.
In fact, so completely did the great shell of smoke conceal the planet that the place occupied by the latter seemed to be simply a vast black hole in the firmament.
The sun was hidden behind it, and so dense was the smoke that even the solar rays were unable to penetrate it, and consequently there was no atmospheric halo visible around the concealed planet.
All the sky around was filled with stars, but their countless host suddenly disappeared when our eyes turned in the direction of Mars. The great black globe blotted them out without being visible itself.
Attempts to Attack Baffled.
"Apparently we can do nothing here," said Mr. Edison. "Let us return to the daylight side."
When we had arrived near the point where we had been when the wonderful phenomenon first made its appearance, we paused, and then, at the suggestion of one of the chemists, dropped close to the surface of the smoke curtain which had now settled down into comparative quiescence, in order that we might examine it a little more critically.
The flagship was driven into the smoke cloud so deeply that for a minute we were again enveloped in night. A quantity of the smoke was entrapped in a glass jar.
Examining the Smoke.
Rising again into the sunlight, the chemists began an examination of the constitution of the smoke. They were unable to determine its precise character, but they found that its density was astonishingly slight. This accounted for the rapidity with which it had risen, and the great height which it had attained in the comparatively light atmosphere of Mars.
"It is evident," said one of the chemists, "that this smoke does not extend down to the surface of the planet. From what the astronomers say as to the density of the air on Mars, it is probable that a clear space of at least a mile in height exists between the surface of Mars and the lower limit of the smoke curtain. Just how deep the latter is we can only determine by experiment, but it would not be surprising if the thickness of this great blanket which Mars has thrown around itself should prove to be a quarter or half a mile."
"Anyhow," said one of the United States army officers, "they have dodged out of sight, and I don't see why we should not dodge in and get at them. If there is clear air under the smoke, as you think, why couldn't the ships dart down through the curtain and come to a close tackle with the Martians?"
"It would not do at all," said the commander. "We might simply run ourselves into an ambush. No; we must stay outside, and if possible fight them from here."
Strategic Measures Employed.
"They can't keep this thing up forever," said the officer. "Perhaps the smoke will clear off after a while, and then we will have a chance."
"Not much hope of that, I am afraid," said the chemist who had originally spoken. "This smoke could remain floating in the atmosphere for weeks, and the only wonder to me is how they ever expect to get rid of it, when they think their enemies have gone and they want some sunshine again."
"All that is mere speculation," said Mr. Edison; "let us get at something practical. We must do one of two things: either attack them shielded as they are, or wait until the smoke has cleared away. The only other alternative, that of plunging blindly down through the curtain, is at present not to be thought of."
"I am afraid we couldn't stand a very long siege ourselves," suddenly remarked the chief commissary of the expedition, who was one of the members of the flagship's company.
"What do you mean by that?" asked Mr. Edison sharply, turning to him.
"Well, sir, you see," said the commissary,