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  The changeling had gotten its doctorate in anthropology in 1960. Combining its deep knowledge of Earth’s biology with a broad knowledge of the cultures that crawled all over the planet convinced it that it had to be from somewhere else. So it went to Harvard with impeccably faked credentials (again a boy from California) and began the study of astronomy and astrophysics.

  If they ever rode together on the Red Line or had a beer at the same time at the Plough and Stars, they were unaware of being in the company of a fellow extraterrestrial. They were both looking for other aliens; they were both too experienced to be found out.

  Neither one was drafted for Vietnam. The changeling faked severe stomach ulcers. The chameleon finished its master’s degree and joined Officer Candidate School.

  So while the chameleon pointed eight-inch guns at unseen targets in the Vietnamese jungle, the changeling pointed huge telescopes at unseen targets outside the galaxy. It mostly counted photons and put the numbers into a BASIC program, which dispensed something like truth. Sometimes, unlike professional astronomers, the changeling unhooked the telescope from its photon counter and actually looked through it at the night sky.

  It was fascinated with globular clusters, and eventually hunted down all of the hundred-some visible from Massachusetts. It saw its home, M22, as a fuzzy blob shot through with sparkles, and returned to it many times without knowing why.

  The changeling had a master’s in astronomy by 1974, but felt it had to know more about computers before continuing on, so it moved down to MIT for a couple of years, studying electrical engineering and computer science.

  Two of its professors had taught an alien before.

  It liked the area, and so returned to Harvard for its Ph.D. in astrophysics, where it had another coincidental encounter. As part of its graduate assistantship, it graded papers for an elementary astrophysics course, Atmospheres of the Sun and Stars. One of its students was Jan Dagmar, who it would meet more than forty years later, in Samoa.

  Harvard followed the tradition of kicking its chicks out of the nest, so after its doctorate, the changeling had to look elsewhere for work. The natural place was the National Radio Observatory in Green Bank, West Virginia, where Frank Drake had started Project OZMA, which after twenty years had evolved into the SETI Project, the Search for Extraterrestrial Intelligence.

  The changeling worked there, massaging data, for two years, and then took an indefinite leave of absence, and a series of profound career shifts. It was an exotic dancer and part-time prostitute in Baltimore for a while, then a short-order cook back in Iowa City. As an old lady, it read palms on the county-fair circuit in the Midwest, and returned to California in its old Jimmy body to be a surf bum for a couple of seasons.

  Sacrificing half its mass, it became a juggling dwarf with the Barnum Bailey Circus, making contacts in the freak world. It met some interesting people, but they all seemed to be from Earth, no matter what they claimed.

  It married the Bearded Lady, an even-tempered and sardonic hermaphrodite, and they lived together until 1996. The changeling left behind a hundred ounces of gold and no explanation, and became a student again.

  After absorbing two stray dogs, it went back to the Jimmy template, but took the body past California and down to Australia. It studied marine science at Monash University, aware that most of what it had studied a half century before had been profoundly revised.

  It had learned to trust certain feelings—memories buried so deep they were no longer memories—and one of those feelings was a special affinity for deep waters, and the Pacific.

  —20—

  Apia, Samoa, 2021

  They decided it would be prudent to build a blast wall between the laboratory and the island, before starting the planetary environment experiment. If the Jupiter simulation blew up, they might still hear it in Fiji, but at least it wouldn’t level Apia.

  The wall was three meters thick at its base, curving up to one meter thickness at the top, ten meters high. It was a semicircle 150 meters in diameter, open to the sea. Local artists were hired to paint bright murals on the land side, but it was still an eyesore. The local fono was appeased by a schoolbus and two stained-glass windows for the Methodist church.

  In the event of an explosion, all the force that would have gone landward should be diverted straight up or expended on destroying the blast wall, which was made of a foamed concrete that would boil off rather than break.

  But they were months away from Jupiter. The original plan had been to start with Mercury, but the technical staff argued for doing Mars first. Two of the techs, Naomi and Moishe, had gone to Florida and been fitted with modified NASA space suits, and spent a few weeks training with them. They could comfortably enter the Martian environment and check out the situation. Mercury was marginal; their suits’ air-conditioning could only handle it for short periods. It was logical to start the experiment under conditions that allowed continuous direct human contact.

  So for the first couple of days, Naomi and Moishe walked around on their tenth-acre of “Mars,” checking the place for leaks from the outside world, running tests on all the sensors and communication devices in the relatively clement environment.

  Only relatively: the atmospheric pressure was pumped down to about a hundredth that of sea level, and there was no oxygen in their brew, just carbon dioxide with traces of nitrogen and argon. It was refrigerated down to minus one hundred degrees Centigrade, and cycled up to a balmy twenty-six, simulating the Martian equator during the summer. The ambient light was dim and pink, heavy on the ultraviolet.

  The environment caused no serious problems, so Jan essentially repeated the three-minute Drake message over and over, tapping it out and blinking it in various wavelengths, in a pattern they would repeat in every environment: radio waves to microwaves through visible light to ultraviolet. They didn’t go up into gamma or X rays, which they felt could be perceived as aggression.

  In the original back-of-the-menu plan, they started with radio waves at a wavelength of one meter, and then went to a tenth of a meter, and then microwaves at one centimeter, and so forth, the seventh and eighth iterations being ultraviolet. But Jack pointed out that there was nothing special about the number ten, except for creatures who have ten tentacles or fingers, so to be nonprovincial about it they used 9.8696, pi squared, as the divisor.

  The artifact tolerated Mars but didn’t remark on it, so they pumped out the thin gruel of its atmosphere and substituted the hot vacuum of Mercury. A blazing artificial sun crawled across the sky while Jan’s message patiently tapped and bleeped and blinked through the inferno, 600 degrees K., hot enough to melt lead.

  But Mercury was a picnic spot compared to Venus. They stayed on the safe side of the blast wall and pumped in hot carbon dioxide, ninety atmospheres of it at 737 degrees K. As had been true with Mercury, the artifact’s temperature rose at exactly the same rate as the ambient temperature. Its response to Jan’s message was the same silence. They slowly brought the temperature and pressure back down to Samoan ambience, warm for North Americans, if fatally frigid for Venusians.

  Some wiring and components had been stressed too much, and it hadn’t been easy on the human components, either. So they took a few days off while replacement parts were assembled and shipped from various countries, and everybody took a short vacation over on the more old-fashioned island Savai’i.

  After you’d seen the famous blowholes, there wasn’t a lot to do unless you were a surfer with a death wish, so they mostly walked around enjoying the peacefulness. Some of them watched or played cricket. Jan engaged an old woman to teach her how to paint the traditional siapo cloth, and she spent a couple of afternoons doing that, making souvenir placemats for her grandchildren while listening to the hypnotic ocean crash, sipping the local fruit juice, not thinking about much. Trying not to.

  They stayed at the venerable Safua Hotel, which was actually just a bunch of cottages around a central fale, where a buffet feast was offered for supper and
an automated bar served as a social focus.

  There was no cube on the island, by law, so the evening entertainment was homemade. Russ and Naomi played chess while most of the others listened to a pickup band of local kids who alternated modern music with traditional Samoan. They tried to teach everybody how to dance Samoan style, with little success except, surprisingly, Jack. He mumbled something about Hawaii when he was in the service.

  After three days they got word that all the replacement equipment had arrived, and installation would be complete the next morning. So they took a light plane back to Apia—the ferry over having been a little rough for most of them—and with binoculars could occasionally see rays and sharks in the transparent water.

  Muese, one of the native Samoan techs who had stayed behind, had dug a deep fire pit on the beach between the blast wall and the laboratory, and was roasting a pig, buried wrapped in taro leaves. He made a shallow pit in the afternoon and wrapped yams and potatoes in foil, and put a rack over the coals to grill chicken and fish.

  Jack provided tubs of ice with drinks and a keg of beer, and invited all forty-eight employees of the project to the luau. There was no special reason to have a party, but no reason not to have one, either. Work would resume in earnest the next day.

  Just before sundown, Muese dug up the pig and spent a half hour carving it, while others tended to the chicken and slabs of tuna and masimasi. The automatic security floodlights came on, less romantic than guttering torches, but good light to cook and eat by.

  After the sumptuous meal, a group got together by the fire with guitars, a harmonica, a fiddle, and a tin whistle, and played improbable Irish and Welsh music, popular in the States. Russ and Jan sat apart with a bottle of cold white Burgundy wrapped in a wet towel.

  “So what happens next,” Russ said, “if we get out to Jupiter and still don’t have anything?”

  She shrugged. “More invasive procedures, I suppose. Jack must have ideas. He’s not committing himself.”

  Russ finished off his glass but didn’t pour another. “He has more than ideas. He has an offer. From China.”

  “He didn’t say anything.”

  “Yeah. I only know because I was in the office when the machine decrypted it. He couldn’t tell me not to watch.”

  “Let me guess. They want to bury the thing in chop suey.”

  “Not even close. Chop suey’s American, anyhow.”

  “I know. What is it?”

  “They’ll cosponsor putting the artifact into orbit. Split the cost of a cluster of four Long March rockets.”

  “And once in orbit?”

  “Take the big laser up with it, I guess. Try it at a hundred percent, safely off Earth.”

  She shook her head. “Remind me to be somewhere else when it’s overhead.”

  “I think he can be talked out of it. It would mean taking government money.” He refilled both of their glasses. “We have to come up with something else, though.”

  She stared at the containment dome. “We could just send it into the future.”

  “First we build a time machine.”

  “I mean one day at a time. Just put a fence around it and wait for science to catch up with it.” She took a sip, still staring. “Suspend the project for ten, fifty, a hundred years.”

  “Jack would die first.”

  She nodded. “As would we all.”

  —31—

  Washington, D.C., 1974

  The chameleon decided to stay in one place and make a fortune. It had been wealthy in the past, spoils of war, but it had never been a rich capitalist, which sounded interesting.

  It kept the core identity of a man who went to the office every morning, did his administrative work like a good drone, and then went home to his bachelor apartment, presumably to watch TV and read. He seemed uninterested in women, and most of his coworkers thought he was gay.

  What the chameleon actually did at night was become young and gay, in both senses of the word. It dropped ten or fifteen years and pounds, which it could do in a painless second, and exchanged the office uniform for something eye-catching but tasteful. Then it either went on a date or went trolling for a new source of money.

  It had three wealthy men paying regular “gifts,” for discretion as well as services rendered, and made even more per month by picking up men and robbing them after sex. If they fought, it would sometimes have to kill them, but usually the threat of exposure was enough. It preferred to leave them alive, so it could identify them months or years later for a repeat performance, with a different face and body. There was a gay “scene” in Washington in the seventies, and the chameleon moved through it like an invisible predator.

  It didn’t prefer gay sex to straight; one was much like the other. It made less money as a woman, though, and as a gay prostitute it ate at better restaurants, and the other man still picked up the bill.

  The seventies and eighties were good for the stock market, at least for conservative investors, and all of the money the chameleon made from sex and extortion went straight to its broker. After the first million, it became a broker itself, handling its various identities under yet another false one.

  It didn’t have a plan, in the sense of ambition. It watched its various fortunes grow and shrink and grow again like a horticulturist tending a garden, fertilizing in one season and pruning in the next.

  It slowly became the richest creature in the world, though the wealth was scattered among a hundred identities and a thousand accounts. It started two small wars, as experiments, and profited from both, though not as well as it did in drugs and dot-coms.

  It left dot-coms a year before they tanked, but then, instead of pushing its advantage, left the money to marinate for a year or decade or two. Something would come along.

  Maybe money could accomplish what research had not, finding another one like himself. Humans were no challenge to kill.

  —32—

  Melbourne, Australia, 1997

  The changeling settled into the Gippsland campus of Monash University in 1997, and spent four years earning a double degree in marine biology and biotechnology. It enjoyed Melbourne, but often spent its free time in the water, being a subject as well as a student of marine biology, and enjoying fresher fish than any sushi chef could offer.

  Its academic performance was flawless, Monash being no more difficult than Harvard or MIT, and it accepted a full scholarship to James Cook University in Queensland, where it spent four years getting its M.S. and Ph.D. in marine biology, specializing (naturally enough) in the behavior of marine animals.

  It took its fresh doctorate to AIMS, the Australian Institute of Marine Science, where it began researching “wonky holes,” the fisherman’s name for muddy holes that foul trawling nets near reefs. Many kilometers offshore, they turned out to be fresh water percolating from subterranean streams—a natural process that was having an unnatural effect on the reefs, because the water carried nutrients from farms, which fed algae, attracting fish. Fishermen kept the locations of wonky holes secret, because they attracted schools of fish—an easy day’s catch was worth the occasional fouled net.

  Investigating this phenomenon gave the changeling its first opportunity to see itself as a great white shark. AIMS was using underwater videocams to monitor fish populations, and one weekend the changeling went out to visit a camera site. It grabbed the bait box, used to attract smaller fish, in its powerful jaws, and crunched it flat, thrashing around in a natural reaction to the strange metallic flavor. It made for some great footage, which had gone all over the oceanographers’ world by the time the changeling had turned back into a human and returned to the lab.

  “Ugly customer,” it said when it saw the tape, to predictable response: “No, it’s beautiful, can’t you see? It’s just being a shark.” Actually, it was engaging in unsharklike behavior at the time, analyzing the difference in the ocean’s flavor around the wonky holes: slightly acidic fresh water. Bad for coral in the long run, though in the short run
it was like an all-you-can-eat buffet for the small creatures that fed on algae and plankton, and the larger ones that fed on them, and on up the food chain to the fisherfolk who cursed the wonky holes for mucking up their nets, but kept returning.

  In the long run, though, the wonky holes were one of several interlocking factors that were destroying the offshore parts of the Great Barrier Reef, which was bad for tourism as well as fishing. The changeling made them his specialty, and being a part-time shark gave him a huge advantage over other researchers: he could smell out wonky holes in the early stages of development, before they had attracted enough fish to draw the attention of humans. So he did “productive” analysis in reverse: he found relationships between fishing patterns near the shore and the formation of wonky holes, and scientifically predicted where to find the small ones.

  This eventually led to a selective reforestation program—the excess percolation of fresh water was indirectly caused by the absence of trees, which would normally store large quantities of water after a rainfall, to harmlessly evaporate back into the clouds.

  By this time its identity, as James “Jimmy” Coleridge, had been well established, a Californian who had adopted Australia with enthusiasm. At twenty-seven, Jimmy was considered quite a prodigy in the small world he’d mastered. James Cook University offered “the Wonky Hole Man” a tenure-track professorship, and the changeling took it with some enthusiasm, seeing it as a good platform from which to observe the overall situation of marine science in the Pacific.

  Somewhere out here was the answer.

  Young Dr. Coleridge was popular with his students, both the undergraduates in the general oceanography courses and the graduate students who worked with him in Special Problems in Marine Ecologies. It wooed and married one of its graduate students, Marcia, a beautiful blonde from Tasmania.