He found out. The shrews were swimming out into the river and recurving to land within the protected semicircle! Most of them did not make it, since there was no coherent organization to their advance; they either got caught in the fringe fire or went straight across to land on the opposite shore. Many drowned in the center current, and more died fighting in the water for the corpses, but the supply was such that even five or ten per cent drifting back into the open area behind the parapet was enough. to overrun the area.
Would alcohol dumped directly into the river stop them? Sos ruled it out quickly. There was not enough left, and if it did not do the job the entire human party could be trapped by the lingering fires of its own defense, while the animals inundated the base.
He decided to cut his losses. The shrews had won this battle. 'Evacuate!'
The men, once contemptuous of the enemy, had had enough. Shrews decorated arms and legs and wriggled in pantaloons and carpeted the ground, teeth everywhere. Warriors dived into the river and swam for safety, ducking under the surface whenever they could, in full retreat. Sos made a quick check to see that no wounded remained, and followed.
It was now late afternoon. Was there time to move the tents back before nightfall?-Or would the shrews stop before reaching the present encampment? He had to decide in a hurry.
He could not take the risk. 'Pick up tents and move back as far as you can before dusk,' he shouted. 'Single men may camp here and stand guard.' He had stored the duplicate packs within the enclosure-in case the shrews attacked from the unexpected side of the river, and those reserves were now inaccessible. Another error in judgment-yet until he was sure of the route and timing of the hordes, such losses would occur.
The shrews did not ascend the hill that night. This species, at least, was a daytime marauder. Perhaps the moths saw to that. In the morning the main body, gorged on its casualties and still numberless, crossed the river and marched downstream. Only a few hardy climbers on the outskirts reached the tents.
Sos looked about. He could not assume that this was a safe location, and it was certainly not as convenient as the valley plain. There was no more wildlife here than below. It might merely mean that the shrews' route was random; obviously they could overrun the hill if they chose to. Most likely they followed the general contours of the land, ascending where there was smoother going, and came down at this point when they came this way.
At least he had learned one thing: the shrews traveled only in the group, and thus were governed by group dynamics. He strained to remember the commentary in a complex text on the subject, that he had not suspected would ever have meaningful application to his life. Groups were shaped by leaders and reflected the personalities and drives of those leaders; divert the key individuals, and you diverted the pack. He would have to think about that, and apply it to this situation.
It would also be wise to spy on the continuing progress of the horde and learn for certain what finally happened to it. And to trace its origin-there might be a restricted breeding ground that could be put to the fire before the next swarm became a menace. He bad been preoccupied with defense, and he saw now that that wouldn't work.
By noon the enemy was gone, and the men were able to recover their campsite. It was a ruin; even nylon was marked by the bite of myriad teeth and fouled by layers of dung.
A committee plunged eagerly into the problem of shrew tracing and diversion, while women and children moved into the main semicircle to clean up and pitch new tents. It seemed as safe a place as any, since the following horde would starve if it followed the identical route of this one. The next shrew foray was more likely to come down the opposite bank. Besides, there was a great deal of laundry to do in the river.
The bones and gear of the missing hunting party were discovered three miles upriver. Suddenly everyone appreciated the menace properly, and no more grumbles about the work were heard. Sos, too, was treated with somewhat more respect than hitherto. He had proved his point.
CHAPTER SEVEN
Sol arrived two weeks later with another group of fifty men. He now had a fair-sized tribe of sixty-five warriors, though the majority of these were inexperienced and untrained youths. The best men were still tied up in established tribes, as Sos had pointed out in their discussion but that situation would change in due course.
Sos trotted out the witnesses to the execution of Nar and had them describe to Sol what they had observed. There were only two; the third had been a hunter on the day of warfare. Sos was not certain how the master of the tribe would take it, since his management of the valley group had cost five men. That was a full quarter of the complement put in his charge.
'There were two guards?' Sol inquired.
The witnesses nodded. 'Always.'
