"The evidence," said Lockley as Jill looked at him ashen-faced, "the evidence is all for monsters. But there was something in that broadcast that calls for courage, and I want to summon it. We're going to need it." "If they aren't monsters," said Jill in a stricken voice, "Then--then they're men. And we have a cold war with only one country, and they're the only ones who'd play a deadly trick like this. So if they aren't monsters, in the ship, they must be men, and they'd kill anybody who found it out." "But again," insisted Lockley, "the evidence is still all for monsters. You've been very loyal and very confident about Vale. But we're in a fix. Vale would want you in a safe place, and there's something in that broadcast that doesn't look good." "What was in the broadcast?" Lockley said wryly, "Two things. One was there and one wasn't. There wasn't anything about soldiers marching up to Boulder Lake to welcome visitors from wherever they come from, and to say politely to them that as visitors they are our guests and we'd rather they didn't shoot terror beams or paralysis beams about the landscape. We were more or less counting on that, you and I. We were expecting soldiers to come up the highway headed for the lake. But they aren't coming." Jill, still pale, wrinkled her forehead in thought. "That's what wasn't in the broadcast," Lockley told her. "This is what was. The troops have formed a cordon about the Park. They've run into the terror beam. The broadcast said it was weakened by distance and only made the soldiers uncomfortable. But they've moved back. You see the point? They've moved back!" Jill stared, suddenly understanding. "But that means--" "It means," said Lockley, "that the terror beam is pretty much of a weapon. It has a range up in the miles or tens of miles. We don't know how to handle it yet. Whoever or whatever arrived in the thing Vale saw, it or they has or have a weapon our Army can't buck, yet. The point is that we can't wait to be rescued. We've got to get out of here on our own feet. Literally. So we forget about highways. From here on we sneak to safety as best we can. And we've got to put our whole minds on it." Jill shook her head as if to drive certain thoughts out of it. Then she said, "I guess you're right. He would want me to be safe. And if I can't do anything to help him, at least I can not make him worry. All right! What does sneaking to safety mean?" Lockley led her down the highway running from Boulder Lake to the outside world. They came to a blasted-out cut for the highway to run through. The road's concrete surface extended to the solid rock on either side. There was no bare earth to take or hold footprints, and there was a climbable slope.