Don’t jump to conclusions, they said. A man who was sick enough to eat a handful of tranquilizers and see how far he could swim might well have done the damage himself. An animal feeding wouldn’t have had any reason to be so delicate about it; besides, the spiders’ claws weren’t fine enough or strong enough to do the job.

They sent the other victim up to ’Home and, under the scab on his scalp, the surgeons found a similar hole. He agreed to stay there for observation. For the rest of his life, if need be. They also examined Kisti Seven, but evidently she had gotten rid of the thing before it had started drilling.

Nobody ventured outside at night without head protection and weapons; in fact most people spent the night at home or wherever they happened to be stuck when the sun went down. Warnings went out to all of the exploration teams.

The creatures weren’t hard to kill if you spotted them. Night was banished as a string of lights went up around the perimeters of both towns. Elevated guardhouses were staffed by sharpshooters with high-powered lasers. Extermination squads swept the countryside during the daytime.

O’Hara said it was overreactive xenophobia and counseled moderation. The things hadn’t actually killed anybody, though they’d had the chance; probably many chances. Before exterminating them, it would be smart to capture a few and observe what they do under controlled conditions.

THE HUNT

Age 57.31 [23 Galileo 431]—Raleigh let me go ahead with the idea of capturing one or two of the floating spiders (or brain-eaters, as some people are calling them) so long as I could muster enough volunteers to build a cage and go capture them.

Finding the volunteers was no problem. I’m not the only one who feels uneasy about a campaign of slaughtering the dominant form of life in the region. Charlee rounded up eleven people from Engineering and I got fourteen from Policy. We built the cage in four afternoons, basically a geodesic dome of thick reeds, the whole thing covered with tough plastic. A fan pulled cool air through hollow reeds in the top; a pair of cameras with night vision would keep our captive under surveillance.

Now the big problem is finding a captive to capture. The first day the sweep team went out, they killed thirty-four of them, using robot drones to home in on helium ponds. The second day they killed nine; the third day they killed two. Maybe the creatures are rare. It seems more likely to me that they’re able to communicate with one another, and smart enough to clear out. Jungle primates on Earth would probably do that. Even birds.