naturally, most likely due to the influence of the sun. However, in the event of any unacceptable increase in levels in the water—an event outside every previous experience, but one governed by an ancient SOP—we are tasked with releasing anti-radiation compounds into the tanks and reservoirs, hopefully to absorb any dangerous excess. Alas, it should be noted that down the decades the potency of these infusions has suffered considerably…but of course we still treat our drinking water with what few chemicals remain—for what good they do—and in addition the water is always filtered before use…
“Many years ago, before my time—indeed in the time of my great-grandfather, also a tech—in order to conserve compounds that were even then scarce, the techs stopped treating and even monitoring water from the animal well. In those days such measures were deemed wasteful; the water, with a source deep in the earth, was always so very pure. Well, that was then. But—
“Twelve days ago the farmers notified us of a slight deterioration in the health of certain of the beasts. Without delay, we techs examined these animals, discovering that they suffered the first symptoms of radiation poisoning! We immediately separated out every affected animal and bird, seeing to it that they were destroyed, and at once isolated the tank of initial influx from the overflow system, thus preventing any further spread of the contamination. Moreover, we cut back on the already limited supply of water to the lake; as Big Jon has mentioned, the fish are barely edible and continuing to maintain their habitat only depletes our human needs…” Here Fielding had paused and drawn a rasping breath, then very quickly continued:
“Obviously affairs were now most serious. But, so as not to cause alarm, only Big Jon and the heads of the various affected crafts were initially informed. Now: from the beginning we kept a close watch on the second tank of influx from the wells, regularly monitoring the radiation level. On the fourth day we discovered a taint, but so slight it was scarcely worse than normal background radiation levels. Nevertheless we isolated this tank also; which was just as well, for in four more days the radiation levels had increased to lethal degrees!
“All of which events were reported to Big Jon Lamon even as they occurred. Which brings us up to date. We techs continue to be vigilant, of course, but as for now…there you have it.”
In the crowd Ned Singer had grunted: “There we have it, eh? None of which addresses the so-called problem!” A number of the people close by had turned to stare at him, nodded their agreement, a few of the men muttering low and even cursing.
From his elevated position on the loading bay platform, Big Jon had been aware of this disturbance in the otherwise stunned assembly, and so was quick to intervene before full-scale panic set in. “Now hold!” he called out, “Listen to me! Andrew Fielding’s techs are not the only ones who have been working on this. Since first learning of the situation, I’ve debated a course of action with the elders and brought into play a contingency plan of sorts—as I shall explain in just a moment.
“But first…I would like to remind you of something that happened eleven months ago, when we received a radio message—our first human contact in a great many years—from the people of a refuge far to the north: an event that caused much excitement in the clan at that time.
“Reception was poor; we couldn’t be certain of the precise contents of the message, which seemed to be a request—even an entreaty— for people! By which I mean human reinforcements for a refuge decimated by fly-by-night depredation! Though the message was weak and fragmented, we learned this much at least: that the folk of this distant community had been attacked, suffering enormous losses before finally destroying the local swarm; also that they now offered safe harbour to anyone