While all the time below me the scrabbling and the clicking sounds continued. The thing, whatever it might be, was getting closer, and it was coming fast.
Right in front of me was the nest of rocks sticking from the wall. I reached out and grabbed the biggest one and jerked and it came loose. It was heavier than I had figured it would be and I almost dropped it, but managed to hang on.
A snout came out of the curve in the burrow and thrust itself quickly upward in a grabbing motion. The jaws opened up and they almost filled the burrow and they were filled with sharp and wicked teeth.
I didn't think. I didn't plan. What I did was instinct. I dropped the rock between my spread-out legs straight down into that gaping maw. It was a heavy rock and it dropped four feet or so and went straight between the teeth, down into the blackness of the throat. When it hit it splashed and the jaws snapped shut and the creature backed away.
How I did it, I don't know, but I got out of the hole. I clawed and kicked against the wall and heaved my body up and rolled out of the hole onto the naked hillside.
Naked, that is, except for the bush with the inch-long thorns, the one that I'd jumped over before I fell into the burrow. It was the only cover there was and I made for the upper side of it, for by now, I figured, the big cattle drive had gone past me and if I could get the bush between myself and the valley side of the swale, I might have a chance. Otherwise, sure as hell, one of those dogs would see me and would come out to bring me in.
For while there was no questions that they were dinosaur herders, they probably couldn't tell the difference between me and a dinosaur. I was alive and could run and that would qualify me.
There was always the chance, of course, that the owner of the burrow would come swarming out, and if he did I couldn't stay behind the bush. But I rather doubted he'd be coming out, not right away, at least. It would take him a while to get that stone out of his throat.
I crouched behind the bush and the sun was hot upon my back and, peering through the branches, I could see, far out on the valley floor, the great herd of milling beasts. All of them had been driven together and there they were, running in a knotted circle, while outside the circle prowled the pinkish dogs and something else as well — what appeared to be men driving tiny cars. The cars and men were all of the same color, a sort of greenish gray, and the two of them, the cars and men, seemed to be a single organism. The men didn't seem to be sitting in the cars; they looked as if they grew out of the cars, as if they and the cars were one. And while the cars went zipping along, they appeared to have no wheels, It was hard to tell, but they seemed to travel with the bottom of them flat upon the ground, like a snail would travel, and as they traveled, they rippled, as if the body of the car were some sort of flowing muscle.
I crouched there watching and now, for the first time, I had a chance to think about it, to try to figure out what was going on. I had come here, across more than sixty million years, to see some dinosaurs, and I sure was seeing them, but under what you might say were peculiar circumstances. The dinosaurs fit, all right. They looked mostly like the way they looked in books, but the dogs and car-men were something else again. They were distinctly out of place.
The dogs were pacing back and forth, sliding along in their sinuous fashion, and the car-men were zipping back and forth, and every once in a while one of the beasts would break out of the circle and the minute that it did, a half dozen dogs and a couple of car-men would race to intercept it and drive it back again.
The circle of beasts must have had, roughly, a diameter of a mile or more — a mile of milling, frightened creatures. A lot of paleontologists have wondered whether dinosaurs had any voice and I can tell you that they did. They were squealing and roaring and quacking and there were some of them that hooted — I think it was the duckbills hooting, but I can't be sure.
Then, all at once, there was another sound, a sort of fluttering roar that seemed to be coming from the sky. I looked up quickly and I saw them coming down — a dozen or so spaceships, they couldn't have been anything but spaceships. They came down rather fast and they didn't seem too big and there were tails of thin, blue flame flickering at their bases. Not the billowing clouds of flame and smoke that our rockets have, but just a thin blue flicker.
For a minute it looked like one of them would land on top of me, but then I saw that it was too far out. It missed me, matter of fact, a good two miles or so. It and the others sat down in a ring around the milling herd out in the valley.
I should have known what would happen out there. It was the simplest explanation one could think of and it was logical. I think, maybe, way deep down, I did know, but my surface mind had pushed it away because it was too matter-of-fact and too ordinary.
Thin snouts spouted from the ships and purple fire curled mistily at the muzzle of those snouts and the dinosaurs went down in a fighting, frightened, squealing mass. Thin trickles of vapor drifted upward from the snouts and out in the center of the circle lay that heap of dead and dying dinosaurs, all those thousands of dinosaurs piled in death.
It is a simple thing to tell, of course, but it was a terrible thing to see. I crouched there behind the bush, sickened at the sight, startled by the silence when all the screaming and the squealing and the hooting ceased. And shaken, too — not by what shakes me now as I write this letter, but shaken by the knowledge that something from outside could do this to the Earth.
For they were from outside. It wasn't just the spaceships, but those pinkish dogs and gray-green car men, which were not cars and men, but a single organism, were not things of earth, could not be things of earth.
I crept back from the bush, keeping low in hope that the bush would screen me from the things down in the valley until I reached the swale top. One of the dogs swung around and looked my way and I froze, and after a time he looked away.
Then I was over the top of the swale and heading back toward the time machine. But half way down the slope, I turned around and came back again, crawling on my belly, squirming to the hilltop to have another look.
It was a look I'll not forget.
The dogs and car-men had swarmed in upon the heap of dead dinosaurs, and some of the cars already were crawling back toward the grounded spaceships, which had let down ramps. The cars were moving slowly, for they were heavily loaded and the loads they carried were neatly butchered hams and racks of ribs.
And in the sky there was a muttering and I looked up to see yet other spaceships coming down — the little transport ships that would carry this cargo of fresh meat up to another larger ship that waited overhead.
It was then I turned and ran.
I reached the top of the hill and piled into the time machine and set it at zero and came home. I didn't even stop to hunt for the binoculars I'd dropped.
And now that I am home, I'm not going back again. I'm not going anywhere in that time machine. I'm afraid of what I might find any place I go. If Wyalusing College has any need of it, I'll give them the time machine.
But that's not why I wrote.
There is no doubt in my mind what happened to the dinosaurs, why they became extinct. They were killed off and butchered and hauled away, to some other planet, perhaps many light years distant, by a race which looked upon the earth as a cattle range — a planet that could supply a vast amount of cheap protein.
But that, you say, happened more than sixty million years ago. This race did once exist. But in sixty million years it would almost certainly have changed its ways or drifted off in its hunting to some other sector of the galaxy, or, perhaps, have become extinct, like the dinosaurs.
But I don't think so. I don't think any of those things happened. I think they're still around. I think Earth may be only one of many planets which supply their food.
And I'll tell you why I think so. They were back on Earth again, I'm sure, some 10,000 or 11,000 years ago, when they killed off the mammoth and the mastodon, the giant bison, the great cave bear and the saber-tooth and a lot of other things. Oh, yes. I know they missed Africa. They never touched the big game there. Maybe, after wiping out the dinosaurs, they learned their lesson, and left Africa for breeding stock.