A slow current carried them on, and soon they entered a larger tunnel. He swam to the opposite wall, gripped a projection, and watched in wonder and awe the procession gliding by. He soon noticed the source of the dim light. A small creature with barrel-like body and innumerable legs or tentacles, wavering and reaching, floated past. Its body swelled and shrank alternately, with every swelling giving out a phosphorescent glow, with every contraction darkening to a faint red color. Then came a group of others; then a second living lamp; later another and another: they were evenly distributed, and illumined the tunnel.
There were monstrous shapes, living but inert, barely pulsing with dormant life, as much larger than himself as the dog-headed kind were smaller—huge, unwieldy, disk-shaped masses of tissue, light gray at the margins, dark red in the middle. They were in the majority, and blocked the view. Darting and wriggling between and about them were horrible forms, some larger than himself, others smaller. There were serpents, who swam with a serpent’s motion. Some were serpents in form, but were curled rigidly into living cork-screws, and by sculling with their tails screwed their way through the water with surprising rapidity. Others were barrel-or globe-shaped, with swarming tentacles. With these they pulled themselves along, in and out through the crowd, or, bringing their squirming appendages rearward,—each an individual snake,—used them as propellers, and swam. There were creatures in the form of long cylinders, some with tentacles by which they rolled along like a log in a tide-way; others, without appendages, were as inert and helpless as the huge red-and-gray disks. He saw four ball-shaped creatures float by, clinging together; then a group of eight, then one of twelve. All these, to the extent of their volition, seemed to be in a state of extreme agitation and excitement.
The cause was apparent. The tunnel from which he had come was still discharging the dog-faced animals by the thousand, and he knew now the business they were on. It was war—war to the death. They flung themselves with furious energy into the parade, fighting and biting all they could reach. A hundred at a time would pounce on one of the large red-and-gray creatures, almost hiding it from view; then, and before they had passed out of sight, they would fall off and disperse, and the once living victim would come with them, in parts. The smaller, active swimmers fled, but if one was caught, he suffered; a quick dart, a tangle of tentacles, an embrace of the wicked flippers, a bite—and a dead body floated on.
And now into the battle came a ponderous engine of vengeance and defense. A gigantic, lumbering, pulsating creature, white and translucent but for the dark, active brain showing through its walls, horrible in the slow, implacable deliberation of its movements, floated down with the current. It was larger than the huge red-and-gray creatures. It was formless, in the full irony of the definition—for it assumed all forms. It was long—barrel-shaped; it shrank to a sphere, then broadened laterally, and again extended above and below. In turn it was a sphere, a disk, a pyramid, a pentahedron, a polyhedron. It possessed neither legs, flippers, nor tentacles; but out from its heaving, shrinking body it would send, now from one spot, now from another, an active arm, or feeler, with which it swam, pulled, or pushed. An unlucky invader which one of them touched made few more voluntary movements; for instantly the whole side of the whitish mass bristled with arms. They seized, crushed, killed it, and then pushed it bodily through the living walls to the animal’s interior to serve for food. And the gaping fissure healed at once, like the wounds of Milton’s warring angels.
The first white monster floated down, killing as he went; then came another, pushing eagerly into the fray; then came two, then three, then dozens. It seemed that the word had been passed, and the army of defense was mustering.
Sick with horror, he watched the grim spectacle from the shelter of the projection, until roused to an active sense of danger to himself—but not from the fighters. He was anchored by his tail, swinging easily in the eddy, and now felt himself touched from beneath, again from above. A projection down-stream was extending outward and toward him. The cave in which he had taken refuge was closing on him like a great mouth—as though directed by an intelligence behind the wall. With a terrified flirt of his tail he flung himself out, and as he drifted down with the combat the walls of the cave crunched together. It was well for him that he was not there.
The current was clogged with fragments of once living creatures, and everywhere, darting, dodging, and biting, were the fierce black invaders. But they paid no present attention to him or to the small tentacled animals. They killed the large, helpless red-and-gray kind, and were killed by the larger white monsters, each moment marking the death and rending to fragments of a victim, and the horrid interment of fully half his slayers. The tunnel grew larger, as mouth after mouth of tributary tunnels was passed; but as each one discharged its quota of swimming and drifting creatures, there was no thinning of the crowd.
As he drifted on with the inharmonious throng, he noticed what seemed the objective of the war. This was the caves which lined the tunnel. Some were apparently rigid, others were mobile. A large red-and-gray animal was pushed into the mouth of one of the latter, and the walls instantly closed; then they opened, and the creature drifted out, limp and colorless, but alive; and with him came fragments of the wall, broken off by the pressure. This happened again and again, but the large creature was never quite killed—merely squeezed. The tentacled non-combatants and the large white fighters seemed to know the danger of these tunnel mouths, possibly from bitter experiences, for they avoided the walls; but the dog-faced invaders sought this death, and only fought on their way to the caves. Sometimes two, often four or more, would launch themselves together into a hollow, but to no avail; their united strength could not prevent the closing in of the mechanical maw, and they were crushed and flung out, to drift on with other debris.
Soon the walls could not be seen for the pushing, jostling crowd, but everywhere the terrible, silent war went on until there came a time when fighting ceased; for each must look out for himself. They seemed to be in an immense cave, and the tide was broken into cross-currents rushing violently to the accompaniment of rhythmical thunder. They were shaken, jostled, pushed about and pushed together, hundreds of the smaller creatures dying from the pressure. Then there was a moment of comparative quiet, during which fighting was resumed, and there could be seen the swiftly flying walls of a large tunnel. Next they were rushed through a labyrinth of small caves with walls of curious, branching formation, sponge-like and intricate. It required energetic effort to prevent being caught in the meshes, and the large red-and-gray creatures were sadly torn and crushed, while the white ones fought their way through by main strength. Again the flying walls of a tunnel, again a mighty cave, and the cross-currents, and the rhythmical thunder, and now a wild charge down an immense tunnel, the wall of which surged outward and inward, in unison with the roaring of the thunder.
The thunder died away in the distance, though the walls still surged—even those of a smaller tunnel which divided the current and received them. Down-stream the tunnel branched again and again, and with the lessening of the diameter was a lessening of the current’s velocity, until, in a maze of small, short passages, the invaders, content to fight and kill in the swifter tide, again attacked the caves.