The tractor went on past me and I waved the lantern and yelled for Heath to stop and as I waved the lantern the light was thrown onto the rear of the tractor and I saw that there was no one on it.

A hundred things went through my mind, but the one idea that stuck was that Heath had fallen off the tractor and might be lying injured, somewhere in the field.

I ran after the tractor, thinking to shut it down before it got loose and ran into a tree or something, but by the time I reached it, it had reached a turn and it was making that turn as neatly as if it had been broad daylight and someone had been driving it.

I jumped up on the drawbar and grabbed the seat, hauling myself up. I reached out a hand, grabbing for the throttle, but with my hand upon the metal I didn't pull it back. The tractor had completed the turn now and was going down the furrow—and there was something else.

Take an old tractor, now—one that wheezed and coughed and hammered and kept threatening to fall apart, like this one did—and you are bound to get a lot of engine vibration. But in this tractor there was no vibration. It ran along as smooth as a high-priced car and the only jolts you got were when the wheels hit a bump or slight gully in the field.

I stood there, hanging on to the lantern with one hand and clutching the throttle with the other, and I didn't do a thing. I just rode down to the point where the tractor started to make another turn. Then I stepped off and went on home. I didn't hunt for Heath lying in the field, for I knew he wasn't there.

I suppose I wondered how it was possible, but I didn't really fret myself too much trying to figure it all out. I imagine, in the first place, I was just too numb. You may worry a lot about little things that don't seem quite right, but when you run into a big thing, like that self-operating tractor, you sort of give up automatically, knowing that it's too big for your brain to handle, that it's something you haven't got a chance of solving or live with. So your mind rejects it.

I got home and stood out in the barnyard for a moment, listening. The wind was blowing fairly hard by then and the first drops of rain were falling, but every now and then, when the wind would quiet down, I could hear the tractor.

I went inside the house and Helen and the kids were all in bed and sound asleep, so I didn't say anything about it that night. And the next morning, when I had a chance to think about it, I didn't say anything at all. Mostly, I suppose, because I knew no one would believe me and that I'd have to take a lot of kidding about automatic tractors.

Heath got his ploughing done and his crops in, well ahead of everyone in the valley. The crops came up in good shape and we had good growing weather; then along in June we got a spell of wet, and everyone got behind with corn ploughing because you can't go out in the field when the ground is soggy. All of us worked around our places, fixing fences and doing other odd jobs, cussing out the rain and watching the weeds grow like mad in the unploughed field.