"The bears aren't doing too well for food," said Huyghens dryly. "A ton of bear needs a lot to eat. But they're loyal to us. Semper hasn't any loyalty. He's too stupid. But he's been conditioned to think that he can only eat what men feed him. The bears know better, but they stick to us regardless. I rather like these bears."

It was the most self-evident of understatements. This was at an encampment on the top of a massive boulder which projected from a mountainous stony wall. This was six days from the start of their journey. There was barely room on the boulder for all the party. And Faro Nell fussily insisted that Nugget should be in the safest part, which meant near the mountain-flank. She would have crowded the men outward, but Nugget whimpered for Roane. Wherefore, when Roane moved to comfort him, Faro Nell contentedly drew back and snorted at Sitka and Sourdough and they made room for her near the edge.

It was a hungry camp. They had come upon tiny rills upon occasion, flowing down the mountain side. Here the bears had drunk deeply and the men had filled canteens. But this was the third night, and there had been no game at all. Huyghens made no move to bring out food for Roane or himself. Roane made no comment. He was beginning to participate in the relationship between bears and men, which was not the slavery of the bears but something more. It was two-way. He felt it.

"It would seem," he said fretfully, "that since the sphexes don't seem to hunt on their way uphill, that there should be some game. They ignore everything as they file uphill."

This was true enough. The normal fighting formation of sphexes was line abreast, which automatically surrounded anything which offered to flee and outflanked anything which offered fight. But here they ascended the mountain in long lines, one after the other, following apparently long-established trails. The wind blew along the slopes and carried scent only sidewise. But the sphexes were not diverted from their chosen paths. The long processions of hideous blue-and-tawny creatures—it was hard to think of them as natural beasts, male and female and laying eggs like reptiles on other planets—simply climbed.

"There've been other thousands of beasts before them," said Huyghens. "They must have been crowding this way for days or even weeks. We've seen tens of thousands in Semper's camera. They must be uncountable, altogether. The first-comers ate all the game there was, and the last-comers have something else on whatever they use for minds."

Roane protested:

"But so many carnivores in one place is impossible! I know they are here, but they can't be!"

"They're cold-blooded," Huyghens pointed out. "They don't burn food to sustain body-temperature. After all, lots of creatures go for long periods without eating. Even bears hibernate. But this isn't hibernation—or estivation, either."

He was setting up the radiation-wave receiver in the darkness. There was no point in attempting a fix here. The transmitter was on the other side of the Sere Plateau, which inexplicably swarmed with the most ferocious and deadly of all the creatures of Loren Two. The men and bears would commit suicide by crossing here.