As soon as it defined the problem, the solution was obvious.

Four people had gathered. They didn’t bother the old farm lady. A train approached, northbound. The changeling folded the paper carefully and replaced it on top of the pile, under the nickels people had left.

As the northbound train approached, the little old lady asked the four whether it was the train to San Francisco. They confirmed that it was, and she got on board.

The conductor changed her twenty with pursed lips but no comment. It continued to read the almanac, storing up information about how the world had changed while it swam around for six years.

Of course the war had changed the world’s map, while leaving whole cities, and even countries, in ruins. The United States had been spared, and now seemed to be leading a coalition of “free” countries versus communist ones. Atomic bombs, supersonic jets, guided missiles, electronic brains, the transistor, and the zoot suit. Al Capone was dead and the changeling’s namesake Joe Louis was still champ, which the changeling found gratifying.

At the San Francisco station, it picked up a copy of a women’s magazine and stayed in a stall in the ladies’ room for about ten minutes, then emerged as a woman of about twenty, dressed like a college student—two-tone loafers, bobby sox, plaid skirt (that had taken some effort), and a white blouse. It assimilated a chromed toilet-paper holder and recycled it as costume jewelry.

It took the bus to Berkeley and wandered around the campus all day, eavesdropping on people and getting the lay of the land. It tarried for quite a while in the Admissions office. College student was an obvious choice of occupation, but which major? It remembered all it had learned about oceanography, but of course would have to hide most of that, starting over. Physics or astronomy might be useful, and interesting, but if it were to track down others of its kind, anthropology or psychology—abnormal psychology—would be more useful.

Of course it had time for all of them.

It studied the posture, demeanor, and uniform of a janitor, and as darkness fell, let itself into an empty classroom and changed. There were still a few students hanging around in the halls, but a balding fifty-year-old man with a broom was invisible to them.

Around midnight, the changeling slipped into the Admissions office and locked the door. It moved swiftly and quietly, the room adequately lit, to its eyes, from the dim dappled light that filtered through a tree from a streetlight at the end of the block.

There were about fifty return letters from prospective students in the in-box of the young woman the changeling had earlier identified as the most junior secretary. It read through forty of the letters before finding exactly what it needed.

Stuart Tanner, a boy from North Liberty, Iowa, had sent in a letter thanking them for his acceptance, but saying that Princeton had offered him a scholarship, which of course he couldn’t pass up. The changeling found his file in the “Acceptance” drawer and memorized it. He had an almost perfect academic record. No athletics other than swimming team, which was good. The photo was black-and-white, but he was a pale Nordic boy, blond and blue-eyed. The changeling took his face and noted that he’d have to assimilate about twenty pounds.

After making sure there was no one else on the floor, the changeling typed a letter of acceptance, noting that he was driving out to California immediately, for a summer job, so please change his address to General Delivery in Berkeley. It switched the letters and slipped out the door, a new man.

The most direct thing to do would be to go to North Liberty and quietly kill Stuart Tanner, and bring his wallet full of identification back to Berkeley. But that wouldn’t be necessary. It would be sufficient to absorb enough of North Liberty to be able to pass for a native. Stuart grew up in Iowa City, so he’d have to check that out, too. An Iowa driver’s license would be easier to counterfeit than a twenty-dollar bill.

The changeling had seen enough killing in the Pacific to reserve it as a course of last resort.

The thought gave him pause. Until recently, killing a human had been no more complicated than eating or changing identity. He’d had no special feelings of mercy or compassion for his Japanese captors, at the time, but he did recognize having felt a special empathy with the other American soldiers during Bataan. Being a victim among victims may have done something.

Whatever it was, it was odd: something was changing the changeling. Something besides itself; something inside himself.

The change had been slow, actually. It started back in the asylum, when it came to understand the differences between individuals, and to prefer the company of one person over another. To like people.

Stuart Tanner had wanted to major in American literature. That would be an interesting challenge. Maybe the books, the novels, would help it understand what was happening to itself. “What is this thing called love?” the Dorsey song was always asking. Understanding friendship would be a start.

The changeling could read a book a day before September, and be ready for the literature major. It could minor in psychology and take an anthropology elective, that would grow into a second bachelor’s degree. Then graduate work, searching for creatures like itself.

It wandered through Berkeley until it found an all-night cafe, where it sat down with a course catalog it had taken from the office, and mapped this out. Then it scanned the rest of the almanac, appearing to be flipping through it, looking for something. At first light, it walked back to the train station and booked passage through to Davenport, Iowa, which appeared to be the closest stop to North Liberty.

With three hours to go before the train left, it bought a suitcase at a pawn shop and packed it with used clothing from Next-2-New. At a used book store, it bought two thick anthologies of American literature and a half-dozen tattered novels.

It wouldn’t do to be walking down the main street of North Liberty and run into Stuart Tanner or someone who knew him. In a stall in the busy men’s room at the train station, he changed his hair to black and skin, swarthy. He flattened his nose and made his blue eyes brown.

The changeling had reserved a private compartment on the train, since it was only money. At five till eleven it went aboard and settled in.

It took most of the Rocky Mountains to read through the Joe Lee Davis Anthology, and before it got to the Mississippi it had read one book each by Poe, Hawthorne, Melville, Fitzgerald, Hemingway, and Faulkner. It had every word memorized, but knew from previous college experience that that wouldn’t do the trick. Jimmy had been able to write well enough, just barely, to get a degree in oceanography, but his grades in English had been unimpressive. That would have to change.

Among Stuart’s application materials was an eleven-page essay on why he wanted to major in American literature. The changeling had memorized not just the words, but also the handwriting. It copied the essay out twice, trying to understand why the writer had used this word rather than that; why it chose one sentence structure over another. Every time it finished a novel it wrote a few pages about it, trying to mimic Stuart’s style and vocabulary; a plot outline and analysis of the author’s intent, as it had done without great success in the required English and literature courses at UMass. By the time the train got to Davenport, it had worn its pencil to a nub, filling most of a thick tablet. The Mississippi looked interesting. Maybe someday it would turn into a huge catfish and explore it.

It waited out a thunderstorm, since that’s what a human would do, and then walked to the bus station. With a two-hour wait, it read two Iowa papers and reread, in its mind, The Sun Also Rises, which was clear but mysterious: why were these people so self-destructive? The war, it supposed; the previous one. Though it looked as if there might be just one World War, with breathing spaces for re-arming, that would last until somebody won.