THE CATERPILLARS QUESTION

But why give a blind girl a weapon that required sight for its operation? If Jack hadn't been along, Tappy would have been virtually helpless.

These thoughts were buzzing through his mind as he faced the man. He knew that they did not have much time; at any moment there would be others coming here. But there were questions that had to be answered, lest they fall into the next trap their pursuers sprang.

"So you do speak English," Jack said. "You may not care much about your own life, but you do about hers. Well, keep quiet and follow us, or I will radiate her." He was ashamed for the lie, but he was afraid Tappy would be subject to some fate worse than death if he didn't use this lever to get the truth. "Find a place we can talk," he murmured to Tappy.

Tappy immediately moved to the edge of the nulled tu

"Yao are naot serious!" the man said. He had a strong but indefinable accent, as if this was a language he had learned in a class and hadn't used much. "Yao are with hur! Yao will naot radiate hur."

Jack used his pencil to touch the scarlet button. The dim light came on. Don't let him call this bluff! he prayed.

"Aokay! I urncamming!" the man exclaimed, his accent worse.

There was no doubt that the threat to Tappy really u

Empire of the stars. could she be the daughter of the Emperor, stolen away and now to be recovered? But surely she would want to be returned to her family and her status! Unless this was a hostile force, a usurper who wanted to hold her for ransom or brainwash her and set her up as a figurehead. If she died, they would have no chance to make a pretense of legitimacy, and the loyal subjects would rise up and throw them out.

But then why send her to a backwater region of a primitive planet like Earth? Why let her suffer as the ward of an unfriendly family all these years? Anything could have happened to her! If they had the technology to give her the radiator, why hadn't they at least fixed her sight? Jack was no psychologist, but even he had seen that she was a desperately lonely and unhappy girl. She was about as unlikely a princess as he could Tappy was better at finding a hiding place than he would have been, because she tended to explore with her hands and body, while he depended more on sight. Soon they were in a niche in the undergrowth where the sunlight hardly penetrated. They would be able to hear any searchers before they got close.

The man sat on one side, and Jack faced Tappy on the other side, keeping the radiator pointed and his pencil poised. He knew that the moment he got careless the man could jump him. Even if Jack won the struggle, the noise would give their position away and the others would close in. with the best luck, he was unlikely to have much time. He had to make it count.

"Why are you after Tappy?" he demanded.

The man's gaze flicked to the girl, and Jack realized that he had blundered already: the man had not known her name. Not her Earth name, at any rate. But he answered. Jack was already getting -used to the accent, and tuned it out in favor of the meaning. "We must restrict the Imago."

There was a key word! "What is the Imago?" Jack demanded.

"Why must you restrict it?"

The man seemed at a loss. "It has to be restricted!"

"Look, Joe, I'm an ignorant lout from a primitive planet. I don't know anything about this Imago, except that it's gotten me into a

'M of trouble. So you'd better give me good reason not to wipe her out, and wipe you out, and anybody else who comes after nle, so that I can go home and forget all this. Tell me all about the Imago before anybody else gets here. Give me reason not to radiate everything in sight." He hardly believed himself! He was talking like a thug from a grade F movie. But he didn't have time to figure out how to act like a tormented perfectionist from a grade A film.

The man told him, somewhat awkwardly. It wasn't that he didn't know it, but that he could not believe that Jack didn't, so he kept skipping over elements that he assumed Jack already understood. In the course of this Jack picked up some background about the empire and the planet they were oil.

It seemed that there were several components of the empire. It wasn't exactly an empire, but whatever it was was too complicated for Jack to assimilate at the moment, so he used the term as mental shorthand. It included so many stellar systems that there was no reliable survey listing them all. Human beings were on several of its planets, not because they were native but because they had been imported as labor from overpopulated Earth, which planet didn't even miss them. The alien rulers were called the Gaolas it were the gaolers of the empire. They did not care what the human laborers did, as long as they did their jobs; they were allowed to have their own families and entertainments. One of the planets they worked on was this one, where the dominant native species was what Jack thought of as the holikers. The empire was governed by completely alien creatures who had no Y.

biological and little intellectual association with human beings, but whose technological power was such that no known force could oppose it.

Except the Imago. Therefore it was to the Gaol's interest to nullify the Imago. The Imago seemed to be another type of alien entity, possessing no body of its own, other than what for want of a better te

But when it entered a person, it took time to manifest. At first it was the Larva, largely quiescent, inhabiting the person from conception into childhood. That stage seemed to last for about seven years, until the child was six, and the spirit could not be detected. Then it metamorphosed into the Chrysalis. The child did not change physically, but now the symbiotic entity manifested.

The child developed mental or emotional rapport with other life, including animals and plants, and there was a faint mental aura that sophisticated sensors could detect. After another seven years it metamorphosed to its adult stage, whose nature no one knew except the Gaol who governed the empire. It was conjectured that the rapport with other forms of life expanded into full-scale telepathy and the power to modify the emotions of others. If so, it meant the Imago could take over even the minds of the Gaol and make them do its will. That would give it the capacity to rule or to destroy the empireven if it was based in the body of a blind human girl.

"Then why don't you just kill it?" Jack demanded. "So it can't mess with your alien masters?" He still hated to talk this way, as if he didn't care about Tappy. His feeling for her was a strange and wonderful thing, not exactly love and not exactly apart from love. Already he recognized the truth of what the man was telling him: Tappy related to other life, and he felt that relation through his mind and heart. He was begi

If this was only the suggestion of her mature power, what would be its full expression?

The man explained: The Imago could not be killed. If its host was destroyed, it simply sought a new host. Then, fourteen years later, the threat to the empire returned. In the early days, perhaps mille