The ponies had slowed to a crawl, and I would have been happy to take a rest stop and sit and look at the trees for a few minutes, but Bult and Carson rode on through the middle of them. When Bult wasn’t looking, I picked a handful of the leaves and handed them to Ev, but I doubted if Bult would have fined me if he’d seen me. He was too busy looking ahead at a stream we were coming to.
It wasn’t much bigger than the trickle up on top of the ridge, and it was coming from the wrong direction, but Bult claimed it was the Tongue. We started up it, winding in and out between the trees till the igneous on either side began to shut them out. It stacked up in squarish piles like old red bricks, and I grabbed a loose piece and ran an analysis. Basalt with cinnabar and gypsum crystals mixed in. I hoped Carson knew where he was going, because there was no room to backtrail here.
The canyon was getting steeper, too, and the ponies started to complain. The stream climbed up in a little series of cascades that chortled instead of roaring, and the banks turned into reddish-brown blocks, as steep as stairs.
The ponies’ll never make it, I thought, and wondered if that was what Carson was up to—leading us into some defile so steep we’d have to carry the ponies through it on our shoulders just for spite. Carson’d have to carry his, too, though, and the way he was kicking his and swearing at it I didn’t think he was playacting.
Carson’s pony stopped and leaned back so far on his rear legs I thought he was going to pitch back onto me. Carson got off and pulled on the reins. “Come on, you beam-headed, rock-brained hind end,” he shouted, leaning right in his pony’s face, which must have scared him because he dumped a huge pile and started to topple over, but the rock wall stopped him.
“Don’t you dare try that,” Carson bellowed, “or I’ll dump you in this stream for the tssi mitss to eat. Now, come on!” He gave a mighty yank on the reins, and the pony stepped back, dislodged a rock, which went clattering down into the stream, and took off up the steps like he was being chased.
I hoped my pony would get the hint, and he did. He lifted his tail and plopped a big pile. I got off and took hold of his reins. Bult took out his log and looked at Ev expectantly.
“Come on, Ev,” I said.
Ev looked up from his screens, blinking in surprise. “Where are we going?” he said, like he hadn’t so much as noticed we weren’t still meandering through the silvershims.
“Up a cliff,” I said. “It’s a mating custom.”
“Oh,” he said, and dismounted. “The shuttlewren’s flight range puts the silvershims well within range. I need to run tests on the plaster’s composition to make sure, but I can’t do that till I get back to King’s X.”
I knotted the reins tight under Useless’s mouth, and whispered, “You lazy, broken-down copy of a horse, I’m going to do everything Carson’s ever threatened you with and some he hasn’t even thought of, and if you shit one more time before we’re out of this canyon, I’ll pull that pommelbone right out of your neck.”
“What on hell’s keeping you?” Carson said, coming back down the steps. He didn’t have his pony.
“I’m not carrying this pony,” I said.
He sidestepped the piles and got behind Useless and pushed for a while.
“Turn her around,” he said.
“It’s too narrow,” I said. “You know ponies won’t backtrail.”
“Yeah,” he said and took the reins and yanked her around till she was nose to nose with Ev’s pony. “Come on, you poor imitation of a cow, let alone a horse,” he said, and pulled, and she backed right up the canyon.
“You’re smarter than you look,” I called after him as he went back for Ev’s.
“You ain’t seen nothin’ yet,” he said.
We didn’t have any more trouble with the ponies—they hung their heads like they’d been outsmarted and plodded steadily upward, but it still took us the better part of an hour to climb half a klom, and we were going nowhere. The stream shrank to a trickle and half disappeared between the rocks. It obviously wasn’t the Tongue, and Carson must have had the same idea, because the next side canyon we came to he led us into it back the direction we’d come.
It was just as steep and twice as narrow. I didn’t have to stop and take mineral samples, I just scraped them off with my legs as we rode past. The basalt blocks got smaller and began to look like a brick wall, and between them there were zigzag veins of the triangle-faceted crystals Carson had brought home. They acted like prisms, flashing pieces of the spectrum across the narrow canyon when the sun hit them.
Just about when I’d decided the canyon was going to run into a bricked-up dead end, we climbed up and onto the flat and back into silvershims.
We were on a wide overhang with trees growing right up to the edge, and I could see, off to the right, the Tongue far below and hear the roar of its waterfalls. Carson ignored it and rode off through the middle of the trees, heading straight for the far edge, not even bothering now to pretend Bult was leading.
I was right, I thought, he is leading us over a cliff, and came out of the trees. He’d tied his pony to a trunk and was standing close to the edge, looking out across the canyon. Ev rode up, and then Bult, and we just sat there on our ponies, gawking.
“Well, what do you know?” Carson said, trying to sound astonished. “Will you look at that? It’s a waterfall.”
That cascade with the gypsum piles was a waterfall. There was no word for what this was, except that it was obviously the Tongue, meandering through the silvershim forests on the far side and then plunging a good thousand meters into the canyon below us.
“My shit!” Ev said and dropped his shuttlewren. “My shit!”
My sentiments exactly. I’d seen holos of Niagara and Yosemite Falls when I was a kid, and they were pretty impressive, but they were only water. This—
“My shit!” Ev said again.
We were standing a good five hundred meters above the canyon floor and opposite a rose brick cliff that rose up another two hundred meters. The Tongue leapt out of a narrow V in the top of it and flung itself like a suicide down into the canyon with a roar I should never have mistaken for a cascade, throwing up a billow of mist and spray I could almost feel, and crashing into the swirling green-white water below.
The sun ducked under a cloud and then came out again, and the waterfall exploded like fireworks. There was a double rainbow across the top of the spray, and that one was probably from the water’s refracting the sunlight, but the rest of them were from the cliff. It was crisscrossed with veins of the prismatic crystal, and they sparkled and glittered like diamonds, flashing chunks of rainbow onto the cliff, onto the falls, into the air, across the whole canyon.
“My shit!” Ev said again, hanging on to his pony’s reins like they could hold him up. “That’s the most beautiful thing I’ve ever seen!”
“Lucky us stumbling onto it this way,” Carson said, and I turned to look at him. He had his thumbs in his belt loops and was looking smug. “If we’d kept on up that canyon,” he said, “we’d have missed it altogether.”
Lucky, my boots, I thought. All that dragging us through silvershims and up steps and consulting with Bult like you didn’t know where you were going. This is what you were doing while I was waiting for you in the Wall, worried sick. Off chasing rainbows.
He must have found it by following the Tongue, looking for a way around the anticline, and then gone off wandering up cliffs and in and out of side canyons, searching for the best vantage point to show it to us from. If we’d stayed on the Tongue, the way he probably had when he found it, we’d have caught a half glimpse of it around some bend, or heard the roar get louder and guessed what was coming, instead of having it burst on us all at once like some view of rainbow heaven.