"In the end the red weed succumbed almost as quickly as it had spread. A cankering disease, due, it is believed, to the action of certain bacteria, presently seized upon it. Now by the action of natural selection, all terrestrial plants have acquired a resisting power against bacterial diseases—they never succumb without a severe struggle, but the red weed rotted like a thing already dead. The fronds became bleached, and then shrivelled and brittle. They broke off at the least touch, and the waters that had stimulated their early growth carried their last vestiges out to sea.
As I crossed the bridge, the sound of “Ulla, ulla, ulla, ulla,” ceased. It was, as it were, cut off. The silence came like a thunderclap.... Before the dawn my courage returned, and while the stars were still in the sky I turned once more towards Regent’s Park.... I felt no fear, only a wild, trembling exultation, as I ran up the hill towards the motionless monster. Out of the hood hung lank shreds of brown, at which the hungry birds pecked and tore.
In another moment I had scrambled up the earthen rampart and stood upon its crest, and the interior of the redoubt was below me. A mighty space it was, with gigantic machines here and there within it, huge mounds of material and strange shelter places. And scattered about it, some in their overturned war-machines, some in the now rigid handling-machines, and a dozen of them stark and silent and laid in a row, were the Martians—dead!—slain by the putrefactive and disease bacteria against which their systems were unprepared; slain as the red weed was being slain; slain, after all man’s devices had failed, by the humblest things that God, in his wisdom, has put upon this earth.
For so it had come about, as indeed I and many men might have foreseen had not terror and disaster blinded our minds. These germs of disease have taken toll of humanity since the beginning of things—taken toll of our prehuman ancestors since life began here. But by virtue of this natural selection of our kind we have developed resisting power; to no germs do we succumb without a struggle, and to many—those that cause putrefaction in dead matter, for instance—our living frames are altogether immune. But there are no bacteria in Mars, and directly these invaders arrived, directly they drank and fed, our microscopic allies began to work their overthrow. Already when I watched them they were irrevocably doomed, dying and rotting even as they went to and fro. It was inevitable. By the toll of a billion deaths man has bought his birthright of the earth, and it is his against all comers; it would still be his were the Martians ten times as mighty as they are.
For neither do men live nor die in vain.
Here and there they were scattered, nearly fifty altogether, in that great gulf they had made, overtaken by a death that must have seemed to them as incomprehensible as any death could be. To me also at that time this death was incomprehensible. All I knew was that these things that had been alive and so terrible to men were dead. For a moment I believed that the destruction of Sennacherib had been repeated, that God had repented, that the Angel of Death had slain them in the night.
I stood staring into the pit, and my heart lightened gloriously, even as the rising sun struck the world to fire about me with his rays. The pit was still in darkness; the mighty engines, so great and wonderful in their power and complexity, so unearthly in their tortuous forms, rose weird and vague and strange out of the shadows towards the light. A multitude of dogs, I could hear, fought over the bodies that lay darkly in the depth of the pit, far below me. Across the pit on its farther lip, flat and vast and strange, lay the great flying-machine with which they had been experimenting upon our denser atmosphere when decay and death arrested them. Death had come not a day too soon. At the sound of a cawing overhead I looked up at the huge fighting-machine that would fight no more for ever, at the tattered red shreds of flesh that dripped down upon the overturned seats on the summit of Primrose Hill.
I turned and looked down the slope of the hill to where, enhaloed now in birds, stood those other two Martians that I had seen overnight, just as death had overtaken them. The one had died, even as it had been crying to its companions; perhaps it was the last to die, and its voice had gone on perpetually until the force of its machinery was exhausted. They glittered now, harmless tripod towers of shining metal, in the brightness of the rising sun....
At any rate, in all the bodies of the Martians that were examined after The War, no bacteria except those already known as terrestrial species were found. That they did not bury any of their dead, and the reckless slaughter they perpetrated, point also to an entire ignorance of the putrefactive process. But probable as this seems, it is by no means a proven conclusion.