"We go up here and take to the woods," said Lockley, "because we're not as easy to spot in woodland as we'd be on a road. The characters at the lake will know what roads are. If we figure out how to handle their terror beam, they'll expect the attack to come by road. So they'll set up a system to watch the roads. They ought to do it as soon as possible. So we'll avoid notice by not using the roads. It's lucky you've got good walking shoes on. That could be the deciding factor in our staying alive." He led the way, helping her climb. There would be no sign that they'd abandoned the highway. In fact, there'd be no sign of their existence except the small smashed car. Lockley's existence was known, but not his and Jill's together. Lockley did not feel comfortable about having deliberately shocked Jill into paying some attention to her own situation instead of staying absorbed in the possible or probable fate of Vale. But for them to get clear was going to call for more than sentimentality on Jill's part. Lockley couldn't carry the load alone. There was an invasion in process. It could be, apparently, an invasion from space, in which case the terror produced would be terror of the unknown. But Lockley had conceived of the possibility that it might be an invasion only from the other side of the world. Such an invasion was thought of by every American at least once every twenty-four hours. The fears it would arouse would be fears of the all too thoroughly known. The whole earth had the jitters because of the apparently inevitable trial of strength between its two most gigantic powers. Their rivalry seemed irreconcilable. Most of humanity dreaded their conflict with appalled resignation because there seemed no way to avoid it. Yet it was admittedly possible that an all-out war between them might end with all the world dead, even plants and microbes in the deepest seas. It was ironic that the most reasonable hope that anybody could have was that one or the other nation would come upon some weapon so new and irresistible that it could demand and receive the surrender of the other without atomic war. Atom bombs could have done the trick, had only one nation owned them. But both were now armed so that by treacherous attack either could almost wipe out the other. There was no way to guard against desperate and terrible retaliation by survivors of the first attacked country. It was the certainty of retaliation which kept the actual war a cold one--a war of provocation and trickery and counter-espionage, but not of mutual extermination.