I scrambled down to the bed of the watercourse, jumping easily further and further down in the low gravity, looking for tracks in the damp sand and mud beside the stream. There were none. I pressed on, into the next gully, almost like a small canyon. It wound and twisted and still the mud yielded nothing. I was practicing my tracking skills when two things happened: the tigripard leapt up onto a rock in front of me, snarling, and the sky turned black.

I've had plenty of infantry training, even if quite a while ago. I brought the gun up fast and fired. In that space its report was ridiculously small, swallowed up by the air around. The tigripard was faster. If it had gone for me I should probably have died under its claws then and there. But evidently it was experienced enough to be wary of Man, or at least of Man plus weapons. It leapt sideways and disappeared behind the gully slope. Whether I hit it or not I had no idea. And at that second I had other things on my mind.

I had never seen a daytime sky turn midnight black before, and the light die in an instant. Who has? Wunderlanders who live in the storm-belt have, I discovered.

Then the rain and lightning came, the rain in solid sheets, the lightning hardly less unbroken. Thunder filled and shook the sky. I had seen the sky of Wunderland purple in the light of Alpha Centauri B, one of the great sights of Human Space. This flaring, vivid purple light was a different thing. In an instant I was soaked with freezing rain, my head was ringing and I was almost blinded. That's when I heard the tigripard again.

The tigripard knew Wunderland better than I. But it made the mistake of snarling its challenge before it leapt. I dropped flat as I fired again and its leap carried it over me. It was a very near thing, though: a hind-claw shredded the light shirt I was wearing. Below me the ground gave way, and I rolled down a steep incline. I fetched up bruised and dazed at the bottom. Had it not been for Wunderland's light gravity I would have been a lot worse off. And the tigripard and the fall had saved my life. As I got groggily to my feet again a bolt of lightning struck the place I been standing a few moments before. I saw rocks and earth hurled into the air, and then for a while I might have been blinded.