Camouflage

shark. Although its memory faded over millennia, past vagueness into darkness, it had a feeling that most of it was waiting, back there in the sea. Maybe it could go back, as a human, and find the rest of itself.
    A couple enjoying the salt air at dawn found a body the tide had left in a rocky pool. It had been clothed only in feasting crabs. There was nothing left of the face or any soft parts, but by its stature, the coroner could tell it had been male. A shark or something had taken both its arms, and all its viscera had been eaten away.
    No locals or tourists were missing. A reporter suggested a mob murder, the arms chopped off to get rid of fingerprints. The coroner led him back to show him the remains, to explain why he thought the arms had been pulled off—twisted away—rather than chopped or sawed, but the reporter bolted halfway through the demonstration.
    The coroner’s report noted that from the state of decomposition of the remaining flesh, he felt the body had been immersed for no more than twelve hours. Sacramentosaid there were no appropriate missing persons reports. Just another out-of-work drifter. The countryside was full of them, these days, and sometimes they went for a swim with no intention of returning to shore.
    O ver the next two days, three brain specialists examined Jimmy, and they were perplexed and frustrated. His symptoms resembled a stroke in some ways; in others, profound amnesia from head trauma, for which there was no physical evidence. There might be a tumor involved, but the parents wouldn’t give permission for X rays. This was fortunate for the changeling, because the thing in its skull was as much a porpoise brain as it was a human’s, and various parts of it were nonhuman crystal and metal.
    A psychiatrist spent a couple of hours with Jimmy, and got very little that was useful. His response to the word association test was interesting: he parroted back each word, mocking the doctor’s German accent. In later years the doctor might classify the behavior as passive-aggressive, but what he told the parents was that at some level the boy probably had all or most of his faculties, but he had regressed to an infantile state. He suggested that the boy be sent to an asylum, where modern treatment would be available.
    The mother insisted on taking him home, but first allowed the doctor to try fever therapy, injecting Jimmy with blood from a tertian malaria patient. Jimmy sat smiling for several days, his temperature unchanging—the body of the changeling consuming the malarial parasites along with other hospital food—and he was finally released to them after a week of fruitless observation.
    They had retained both a male and a female nurse; their home overlooking the sea had plenty of room for both employees to stay in residence.
    Both of them had worked with retarded children andadults, but within a few days they could see that Jimmy was something totally unrelated to that frustrating experience. He was completely passive but never acted bored. In fact, he seemed to be studying them with intensity.
    (The female, Deborah, was used to being studied with intensity: she was pretty and voluptuous. Jimmy’s intensity puzzled her because it didn’t seem to be at all sexual, and a boy his age and condition ought to be brimming with sexual energy and curiosity. But her “accidental” exposures and touches provoked no response at all. He never had an erection, never tried to look down her blouse, never left any evidence of having masturbated. At this stage in its development, the changeling could only mimic behavior it had seen.)
    It was learning how to read. Deborah spent an hour after dinner reading to Jimmy from children’s books, tracing the words with her finger. Then she would give Jimmy the book, and he would repeat it, word for word—but in her voice.
    She had the male nurse, Lowell, read to him, and then of course he would mimic Lowell. That made the feat less impressive, as reading. But his memory was astonishing. If Deborah held up any book he had read and pointed to it, he could recite the whole thing.
    Jimmy’s mother was encouraged by his progress, but his father wasn’t sure, and when Jimmy’s psychiatrist, Dr. Grossbaum, made his weekly visit, he sided with the father. Jimmy parroted the list of facial nerves that every medical student memorizes, and then a poem by Schiller, in faultless German.
    “Unless he’s secretly studied German and medicine,”