Ross opened his mouth to speak, and a thousand questions competed for utterance. But what he said, barely aloud, was only: “Yes.” The far-off stars—more than a thousand million of them in our galaxy alone. By far the greatest number of them drifted alone through space, or with only a stellar companion as utterly unlivable by reason of heat and crushing gravity as themselves. Fewer than one in a million had a family of planets, and most even of those could never become a home for human life. But out of a thousand million, any fraction may be a very large number, and the number of habitable planets was in the hundreds. Ross had seen the master charts of the inhabited universe often enough to recognize the names as Haarland mentioned them: Tau Ceti II, Earth, the eight inhabitable worlds of Capella. But to realize that this ship—this ship!—had touched down on each of them, and on a hundred more, was beyond astonishment; it was a dream thing, impossible but unquestioned. Through Haarland’s burning, old eyes, Ross looked back through fourteen centuries, to the time when this ship was a scout vessel for a colonizing colossus. The lumbering giant drove slowly through space on its one-way trip from the planet that built it—was it semi-mythical Earth? The records were not clear—while the tiny scout probed each star and solar system as it drew within range. While the mother ship was covering a few hundred million miles, the scout might flash across parsecs to scan half a dozen worlds. And when the scout came back with word of a planet where humans could survive, they christened it with the name of the scout’s pilot, and the chartroom labored, and the ship’s officers gave orders, and the giant’s nose swerved through a half a degree and began its long, slow deceleration. “Why slow?” Ross demanded. “Why not use the faster-than-light drive for the big ships?” Haarland grimaced. “I’ve got to answer that one for you sooner or later,” he said, “but let me make it later. Anyway, that’s what this ship was: a faster-than-light scout ship for a real longliner. What happened to the longliner the records don’t show; my guess is the colonists cannibalized it to get a start in constructing homes for themselves. But the scout ship was exempted. The captain of the expedition had it put in an orbit out here, and left alone. It’s been used a little bit, now and then—my great-grandfather’s father went clear to 40 Eridani when my great-grandfather was a little boy, but by and large it has been left alone. It had to be, Ross. For one thing, it’s dangerous to the man who pilots it. For another, it’s dangerous to—the Galaxy.” Haarland’s view was anthropomorphic; the danger was not to the immense and uncaring galaxy, but to the sparse fester of life that called itself humanity.