"In effect," Barrent said, "it's simply a different level of real space. But you can find all that in your encyclopedia." "Of course you can, Ronny," the boy's father said. "We mustn't keep the pilot standing here. I'm sure he has many important things to do." "I _am_ rather rushed," Barrent said. "Look around all you want. Good luck on your thesis, Ronny." Barrent walked for fifty yards, his spine tingling, expecting momentarily to feel the blow of a needlebeam or a shotgun. But when he looked back, the father and son were turned away from him, earnestly studying the great vessel. Barrent hesitated a moment, deeply bothered. So far, the whole thing had been entirely too easy. Suspiciously easy. But there was nothing he could do but go on. The road from the starport led past a row of storage sheds to a section of woods. Barrent walked until he was out of sight. Then he left the road and went into the woods. He had had enough contact with people for his first day on Earth. He didn't want to stretch his luck. He wanted to think things over, sleep in the woods for the night, and then in the morning go to a city or town. He pushed his way past dense underbrush into the forest proper. Here he walked through shaded groves of giant oaks. All around him was the chirp and bustle of unseen bird and animal life. Far in front of him was a large white sign nailed to a tree. Barrent reached it, and read: FORESTDALE NATIONAL PARK. PICNICKERS AND CAMPERS WELCOME. Barrent was a little disappointed, even though he realized that there would be no virgin wilderness so near a starport. In fact, on a planet as old and as highly developed as Earth, there was probably no virgin land at all, except what had been preserved in national forests. The sun was low on the horizon, and there was a chill in the long shadows thrown across the forest floor. Barrent found a comfortable spot under a gigantic oak, arranged leaves for a bed, and lay down. He had a great deal to think about. Why, for example, hadn't guards been posted at Earth's most important contact point, an interstellar terminus? Did security measures start later at the towns and cities? Or was he already under some sort of surveillance, some infinitely subtle spy system that followed his every movement and apprehended him only when ready? Or was that too fanciful? Could it be that--? "Good evening," a voice said, close to his right ear. Barrent flung himself away from the voice in a spasm of nervous reaction, his hand diving for his needlebeam. "And a very pleasant evening it is," the voice continued, "here in Forestdale National Park. The temperature is seventy-eight point two degrees Fahrenheit, humidity 23 per cent, barometer steady at twenty-nine point nine. Old campers, I'm sure, already recognize my voice. For the new nature-lovers among you, let me introduce myself. I am Oaky, your friendly oak tree. I'd like to welcome all of you, old and new, to your friendly national forest."