Darwin's Children Part 30

Stella heard loud clanging. She closed her eyes and grinned. She could see it all so clearly: Counselors were going through the barracks, banging metal trash-can lids and shouting for the children to shut up. Slowly, the songs scattered like gusts of scented air. Stella imagined the heads withdrawing from the windows, children rus.h.i.+ng to their bunks, climbing under their covers.

Tomorrow, other barracks would take their turns. There was a kind of lottery; they tried to predict how long it would take the counselors to get from their compound to the guilty barracks, and how long they could be fooled as to which were the offending barracks. Her barracks might join in and undergo the same trash-can-lid response. Stella would be part of the songfest. She did not look forward to the challenge. She had a high, clear overvoice, but needed work on her underspeech. She was not quite as facile as the others.

Silence returned to the morning. She sank under the covers, waiting for the alarm bell. New uniforms had been deposited at the end of each bunk. The bunks were stacked three high, and the kids began each morning with a shower and a change of clothes, to keep the scent from building on their bodies or what they wore.

Stella knew that her natural smell was not offensive to humans. What concerned the camp counselors and captains was persuasion.

The girls below her, Celia and Mandy, were stirring. Stella preferred to be among the first in the showers. The wake-up bell at the south end of the hall went off as she ran toward the gate to the showers. Her thin white robe flapped at mid-thigh level.

Fresh towels and brushes were provided every day. She took a towel and a toothbrush but avoided using toothpaste. It had a lingering smell that she suspected was meant to confuse. Stella stood at the long basin with the polished steel mirror and ran the moist brush over her teeth, then ma.s.saged her gums with one finger, as Mitch had showed her how to do almost ten years ago.

Twenty other girls were already in the shower room, most from other barracks. Stella's building-barracks number three-tended to be slow. It contained the older girls. They were not as chipper or enthusiastic as the younger girls. They knew all too well what the day had in store-boredom, ritual, frustration. Stagnation.

The youngest girl in the camp was ten. The oldest was fifteen.

Stella Nova was fourteen.

After she finished, Stella returned to her bunk to dress. She looked down the lines of bunks. Most of the girls were still in the showers. It was her day to act as monitor for the barracks. She had to be inconspicuous-simply walking from bunk to bunk, bending over, and taking a big whiff would probably land her in detention, with Miss Kantor asking pointed questions. But it had to be done.

Stella carried a stack of school newspapers printed the day before. She walked from bunk to bunk, placing a paper on each bunk and gently sniffing the unmade sheets without bending over.

Within ten minutes, as the girls returned from the showers and began to dress, Stella had a good picture of the health and well-being of the barracks. Later, she would report to her deme mentor. The mentors changed from day to day or week to week. Underspeech or cheek-flashes would tell her who was responsible today. She would make a quick report with underspeech and scenting, before the heavily supervised, once-a-week, coed outdoor activity began.

The girls had thought this procedure up all by themselves. It seemed to work. The bed check was not just useful in knowing how each member was faring, it was also an act of defiance.

Defiance was essential to keeping their sanity.

Perhaps they would have early warning if the humans pa.s.sed along any more diseases. Perhaps it was just a way of feeling they had some control over their lives. Stella didn't care.

Catching the scent of her barracks mates was reward enough. It made her feel as if she were a part of something worthwhile, something not human.

11.

Americol Research Headquarters BALTIMORE, MARYLAND.

"Elcob hobe!"

Liz Cantrera rushed past Kaye, a rack of clear plastic trays clattering in her arms beneath the flopping edge of a folder clamped between her teeth. She deposited the rack near the safety sink and pulled the black-bound folder from her mouth. "This just in from La Robert."

Kaye hung her coat on the k.n.o.bs behind the lab door. "Another salvo?"

"Mm hmm. I think Jackson is jealous you were asked to testify and not he."

"n.o.body should envy me that." Kaye waggled her fingers. "Give it to me."

Cantrera smirked and handed her the folder. "He'll be pus.h.i.+ng a disease model long after the Karolinska hangs gold on you."

Kaye leafed through the fifty-page brief and response to their work of the last two years. This was the big one. Robert Jackson, PI for the larger group and in some respects her boss, was working very hard to get Kaye out of his labs, out of the building, out of the way.

The expected publication date for Jackson's paper in the Journal of Biologics and Epigenetics Journal of Biologics and Epigenetics was sticky-tabbed to the last page: December. "How nice he's pa.s.sed peer review," Kaye said. was sticky-tabbed to the last page: December. "How nice he's pa.s.sed peer review," Kaye said.

Liz put her hands on her hips and stood in an att.i.tude of defiant expectation. She pushed back a strand of curly strawberry blonde hair and loudly chewed a wad of gum. Her eyes were bright as drops of fresh blue ink. "He says we're removing necessary transcription factors surrounding our ERV targets, throwing out the baby with the contaminated bathwater."

"A lot of those factors are transactivated by ERV. You can't have it both ways, Dr. Jackson. Well, at least we can shoot that one down." Kaye slumped on a stool. "We're not getting anywhere," she muttered. "We're taking out the viruses and not getting any baby chimps. What does it take for him to come around?" She glanced up at Liz, who was still waggling her hips and snapping her chewing gum in mock defiance of La Robert.

Liz cracked a big sappy smile. "Feel better?"

Kay shook her head and laughed despite herself. "You look like a Broadway gamine. Who are you supposed to be, Bernadette Peters?"

Liz c.o.c.ked her hips and fluffed her hair with one hand. "She's a corker. Which play?" she demanded. "Revival of Mame Mame?"

"Sweeney Todd," Kaye said. Kaye said.

"That would be Winona Ryder," Liz countered.

Kaye groaned. "Where do you get so much energy?"

"Bitterness. Seriously, how did it go?"

"I'm being used as a prop by one side and a patsy by the other. I feel like Dorothy in the tornado."

"Sorry," Liz said.

Kaye stretched and felt her back pop. Mitch used to do that for her. She riffled through Jackson's folder again and found the page that through instinct, and a touch of luck, had caught her eye a moment before: suspect lab protocols.

As ever, Jackson was trapped in a maze of in vitro studies-test-tube and petri dish blind alleys using Tera2 tumor cell lines-proven traps for making mistakes with ERV. h.e.l.l, he's even using chicken embryos, h.e.l.l, he's even using chicken embryos, she thought. she thought. Egglayers don't use ERVs the same way we do. Egglayers don't use ERVs the same way we do.

"Jackson's vaccines kill monkeys," Kaye said softly, tapping the page. "Marge doesn't like projects that never get past animal studies."

"Shall we play another game of Gotcha with Dr. Jackson?" Liz asked innocently.

"Sure," Kaye said. "I am almost cheered by this." She dropped the folder on her small, crowded desk.

"I'm off to check our arrays, and then I'm going home," Liz called out as she pushed through the door with the tray. "I've been working all night. You in for the week?"

"Until they fire me," Kaye said. She rubbed her nose reflexively. "I need to look over the fragile site studies from last week."

"Prepped and digitized. They're on the photobase," Liz said. "There's some leftover spaghetti in the fridge."

"Heavenly," Kaye said.

"Bye," Liz called as the door swung closed behind her.

Kaye got up and rubbed her nose again. It felt slightly stuffy, not unpleasantly so. The lab smelled unusually sweet and fresh, not that it ever smelled dirty. Liz was a stickler for cleanliness.

The scent was hard to place, not at all like perfume or flowers.

There was a long day's work ahead, preparing for tomorrow's morning meeting. Kaye closed her eyes, hoping to find her calm spot; she needed to focus on the chromosome results from last week. Get the sour clamp of Was.h.i.+ngton off her gut.

She pulled the stool over to the workstation and entered her pa.s.sword, then called up the tables and photos of chimpanzee chromosome mutations.

Early-stage embryos modified for lab work had had all of their single-copy ERVs deleted, but all multicopy ERVs, LINEs, and "defective" ERVs left intact. They had then been allowed to develop for forty-eight hours. The chromosomes, bunched up by mitosis, were removed, photographed, and crudely sequenced. What Kaye was looking for were anomalies around fragile sites and hot spots in the chromosomes-regions of genes that responded quickly to environmental change, suggesting rapid adaptive response.

The modified chimp chromosomes were severely distorted-she could tell that just by looking at the photos. The fragile sites were all screwed up, broken and rearranged incorrectly. The embryos would never have implanted in the womb, much less gone to term. Even single-copy ERVs were important to fetal development and chromosome adaptation in mammals, perhaps especially so in primates.

She looked over the a.n.a.lysis and saw random and destructive methylation of genes that should be actively transcribing, necessary lengths of DNA mothballed like a fleet of old s.h.i.+ps, curling the chromatin into an agony of alternating misplaced activity and dark, inactive la.s.situde.

They looked ugly ugly, those chromosomes, ugly and unnatural. The early-stage embryos, growing under the tutelage of such chromosomes, would die. That was the story of everything they had done in the lab. If, by rare chance, the ERV-knockout embryos managed to implant and begin development, they were invariably resorbed within the first few weeks. And getting that far had required giving the chimp mothers ma.s.sive drug regimens developed for human mothers at fertilization clinics to prevent miscarriages.

The ERVs served so many functions in the developing embryos, including mediating tissue differentiation. And it was already obvious that TLV-the Temin-Larsson-Villarreal conjecture-was correct. Highly conserved endogenous retroviruses expressed by the trophectoderm of the developing embryo-the portion that would develop into the surrounding amnion and placenta-protected against attacks by the mother's immune system. The viral envelope proteins selectively subdued the mother's immune response to her fetus without weakening the mother's defenses against external pathogens, an exquisite dance of selectivity.

Because of the protective function of legacy retroviruses, ERV knockout-the removal or stifling of most or all of the genome's "original sins"-was invariably fatal.

Kaye vividly remembered the chill she had felt when Mitch's mother had described SHEVA as "original sin." How long ago had that been-fifteen years? Just after they had conceived Stella.

If SHEVA and other ERV const.i.tuted original sin, then it was starting to look as if all placental mammals, perhaps all multicelled life forms, were filled with original sin, required it, died without it.

And wasn't that what the Garden of Eden was all about? The beginning of s.e.x and self-knowledge and life as we know it.

All because of viruses.

"The h.e.l.l with that," Kaye muttered. "We need a new name for these things."

12.

ARIZONA.

Roll call was Stella's least favorite time of day, when the girls were all gathered together and Miss Kantor walked between the rows under the big tent.

Stella sat cross-legged and drew little figures of flowers and birds in the dust with her finger. The canvas flapped with the soft morning breeze. Miss Kantor walked between the lines of seated, cross-legged adolescents and leafed through her daybook. She relied entirely on paper, simply because losing an e-pad or laptop in the reserve was a severe offense, punishable by dismissal.

The dormitories held no phones, no satellite feeds, no radios. Television was limited to educational videos. Stella and most of the other children here had come to abhor television.

"Ellie Ann Garcia."

"Here."

"Stella Nova Rafelson."

"Here," Stella called out, her voice silvery in the cool desert air.

"How's your cold, Stella?" Miss Kantor asked as she walked down the row.

"Done," Stella answered.

"Eight days, wasn't it?" Miss Kantor tapped her pen on the daybook page.

"Yes, ma'am."

"That's the fifth wave of colds we've had this year."

Stella nodded. The counselors kept careful and tedious track of all infections. Stella had spent several hours being examined, five days ago; so had two dozen other children with similar colds.

"Kathy Chu."

"Here!"

Miss Kantor walked by Stella again after she had finished. "Stella, are you scenting?"

Stella looked up. "No, Miss Kantor."

"My little sensor tells me you are." She tapped the nosey on her belt. Stella was not scenting, and neither was anybody around her. Miss Kantor's electronic snitch was wrong, and Stella knew why; Miss Kantor was having her period and that could confuse the nosey. But Stella would never tell her that.

Humans hated to be clued when they produced revealing odors.

"You'll never learn to live in the outside world if you can't control yourself," Miss Kantor said to Stella, and knelt in front of her. "You know the rules."

Stella got to her feet without being prompted. She did not know why she was being singled out. She had done nothing unusual.

"Wait over by the truck," Miss Kantor said.

Stella walked to the truck, brilliant white under the morning sun. The air over the mountains was intense and blue. It was going to be hot in a few hours, but it might rain heavily later; that would make the late-afternoon air perfect for catching up. She did not want to miss that.

Miss Kantor finished her count and the kids filed off to the morning cla.s.ses in the trailers and bungalows scattered over the dusty grounds. The counselor and her a.s.sistant, a quiet, plump young woman named Joanie, walked across the gravel to the truck. Miss Kantor would not look straight at Stella.

"I know it wasn't just you," Miss Kantor said. "But you're the only one I could catch. It has to stop, Stella. But I'm not going to punish you this time."

"Yes, ma'am." Stella knew better than to argue. When things went her way, Miss Kantor was reasonable and fairly easygoing, but any show of defiance or contradiction and she could get harsh. "Can I go to cla.s.ses now?"

"Not yet," Miss Kantor said, placing her notepad in the truck. She opened the rear door of the truck. "Your father is visiting," she said. "We're going back to the infirmary."

Stella sat in the back of the truck, behind the plastic barrier, feeling confused. Miss Kantor climbed into the front seat. Joanie closed the door for her and went back to the tent. "Is he there, now?" Stella asked.

"He'll arrive in an hour or so," Miss Kantor said. "You two just got approval. That's pretty good, isn't it?"

"What do they want?" Stella asked suddenly, before she could control her tongue.