The others used their flint and chert tools or the ends of their sticks. It wasn't easy, since the grass was tough and their roots were intertwined deep under the surface. But the blades and the greasy earth finally did give away. Within half an hour a trench, forty-five degrees to the horizontal, had been cut into the bank.

Then the men and Anana swam back, and the moosoids were forced over the bank and into the water. The men swam with them, urging them to make for the trench. The grewigg were intelligent enough to understand what the trench was for. They entered it, one by one, and clambered, sometimes slipping, up the trench. The women at the top grabbed the reins and helped pull each beast on up, while the men shoved from behind.

Fortunately, there was very little current in the channel. The grewigg were not carried away past the trench.

Before all, including the moosoids, had quit panting, the stampede started. There was no way to know how it started. Of a sudden the thunder of countless hooves reached them, mixed with the same noises they had heard but louder now. It wasn't a monolithic movement in one direction. About half of the beasts headed toward the pass. The other part raced toward the mountains outside those that ringed the sealand. These had resumed their cone shape of two days ago.

First through the pass was a herd of at least a hundred elephants. Trumpeting, shoulder to shoulder, those behind jamming their trunks against the rears of those ahead, they sped by. Several on the edge of the channel were forced into the water, and these began swimming toward the pass.

Behind the pachyderms came a mass of antelopes with brownish-red bodies, black legs, red necks and heads, and long black horns. The largest were about the size of a racing horse. Their numbers greatly exceeded those of the elephants; they must have been at least a thousand. The front ranks got through and then a beast slipped, those behind fell over or on him, and within a minute at least a hundred were piled up. Many were knocked over into the channel.

Anana expected the rear ranks to turn and charge off along the base of the right-hand mountain. But they kept coming, falling, and others piled up on them. The pass on that side of the channel was blocked, but the frantic beasts leaped upon the fallen and attempted to get over their struggling, kicking, horn-tossing, bleating fellows. Then they too tripped and went down and those behind them climbed over them and fell. And they too were covered.

The water was thick with crazed antelopes which swam until bodies fell on them and then others on them and others on them.

Anana yelled at the chief. He couldn't hear her because of the terrifying bedlam, so loud it smothered the bellow of thunder and explosion of lightning beyond the pass. She ran to him and put her mouth to his ear.

"The channel's going to be filled in a minute with bodies! Then the beasts'll leap over the bodies and be here! And we'll be caught!"

Trenn nodded and turned and began bellowing and waving his arms. His people couldn't hear him, but they understood his gestures. All the moosoids were mounted, and the travois were hastily attached to the harness and the skins and goods piled on them. This wasn't easy to do, since the grewigg were almost uncontrollable. They reared up, and they kicked out at the people trying to hold them, and some bit any hands or faces that came close.

By then the spill into the channel was taking place as far as they could see. There were thousands of animals, not only antelopes now, but elephants, baboons, dogs, and big cats, pressed despite their struggles into the water. Anana caught a glimpse of a big bull elephant tumbling headfirst off the bank, a lion on its back, its claws digging into the skin.

Now added to the roaring and screaming was the flapping of millions of wings as the birds rose into the air. Among these were the biggest winged birds she'd seen so far, a condor-like creature with an estimated wingspan of twelve feet.

Many of the birds were heading for the mountains. But at least half were scavengers, and these settled down on the top of the piles in the water or in the pass. They began tearing away at the bodies, dead or alive, or attempting to defend their rights or displace others.

Anana had never seen such a scene and hoped she never would again. It was possible that she wouldn't. The sudden lifting of the birds had snapped the moosoids' nerves. They started off, some running toward the birds, some toward the mountains, some toward the pass. Men and women hung onto the reins until they were lifted up, then lowered, their bare feet scraping on the ground until they had to let go. Those mounted pulled back on the reins with all their might but to no avail. Skins and goods bounced off the travois, which then bounced up and down behind the frenzied beasts.

Anana watched Urthona, yelling, his face red, hauling back on the reins, being carried off toward the pass. McKay had let loose of his moosoid as soon as it bolted. He stood there, watching her. Evidently he was waiting to see what she would do. She decided to run for the mountains. She looked back once and saw the black man following her. Either he had orders from her uncle not to let her out of his sight or he trusted her to do the best thing to avoid danger and was following her example.

Possibly, he was going to try to get the Horn from her. He couldn't do that without killing her. He was bigger and stronger than she, but she had her knife. He knew how skilled she was with a knife, not to mention her mastership of the martial arts.

Besides, if he attempted murder in sight of the tribe, he'd be discrediting her story that they were sent by the Lord. He surely wouldn't be that stupid.

The nearest mountain on this side of the channel was only a mile away. It was one of the rare shapes, a monolith, four-sided, about two thousand feet high. The ground around it had sunk to three hundred feet, forming a ditch about six hundred and fifty feet broad. She stopped at the edge and turned. McKay joined her five minutes later. It took him several minutes to catch his normal breathing.

"It sure is a mess, ain't it?"

She agreed with him but didn't say so. She seldom commented on the obvious.

"Why're you sticking with me?"

"Because you got the Horn, and that's the only way to get us out of this miserable place. Also, if anybody's going to survive, you are. I stick with you, I live too."

"Does that mean you're no longer loyal to Urthona?"

He smiled. "He ain't paid me recently. And what's more, he ain't never going to pay me. He's promised a lot to me, but I know that once he's safe, he's going to get rid of me."

She was silent for a while. McKay was a hired killer. He couldn't be trusted, but he could be used.

"I'll do my best to get you back to Earth," she said. "I can't promise it. You might have to settle for some other world. Perhaps Kickaha's."

"Any world's better than this one."

"You wouldn't say that if you'd seen some of them. I give you my word that I'll try my best. However, for the time being, you'll pretend to be in my uncle's employ."

"And tell you what he plans, including any monkey business."

"Of course."

He was probably sincere. It was possible though, that Urthona had put him up to this.

By then some of the tribe had also gotten to the base of the mountain. The others were mostly riders who hadn't so far managed to control their beasts. A few were injured or dead.

The stampede was over. Those animals still on their hooves or paws had scattered. There was more room for them on the plain now. The birds covered the piles of carcasses like flies on a dog turd.

She began walking down to the channel. The tribe followed her, some talking about the unexpected bonus of meat. They would have enough to stuff themselves silly for two days before the bodies got too rank. Or perhaps three days. She didn't know just how fastidious they were. From what she'd seen, not very.