The screen glowed faintly in the tent's half-light. Eileen told the computer to run a slide show.

“These are from yesterday,” she said. “We've done around twenty-seven complete scans. Redundancy upon redundancy, just to be sure we're not making it up. Oliver says he's never seen a more frightened bunch of scientists.”

“I haven't,” Merton affirmed.

The first image showed the pale ghost of a skeleton curled in fetal position, surrounded by what looked like sheets of grass matting, a few stones, and a cloud of pebbles. “Our first. We're calling her Charlene. As you can see, she's fairly modern Homo sap. Prominent chin, relatively high forehead. But here's the tomographic reconstruction from our multiple sweeps.” A second image came up and showed a dolichocephalic, or long-headed, skull. Eileen told the computer to rotate this image.

Mitch scowled. “Looks Australian,” he said.

“She probably is,” Eileen said. “About twenty years of age. Trapped and asphyxiated by hot mud. There are five other skeletons, one close to Charlene, the others clustered about four meters away. All are female. No infants. And no sign of males. The grass matting has decayed, of course. Just molds remain. We have a shadow mold around Charlene, a cast of fine silt from seepage through the mud and ash showing the outlines of her body. Here's a tomographic image of what that cast would look like, if we could manage to pry it loose from the tephra and the rest of the overburden.”

A distorted ghost of a head, neck, and shoulders appeared and rotated smoothly on the display sheet. Mitch felt odd, standing in a tent that would have been familiar to Roy Chapman Andrews or even to Darwin himself, while staring down at the rolled-out sheet of the computer display.

He asked Eileen to rotate the image of Charlene again.

As the image swung around and around, he began to discern facial features, a closed eye, a blob of ear, hair matted and curled, a hint of cooked and distorted flesh slumped from the back of the skull.

“Pretty awful,” Merton said.

“They suffocated before the heat got to them,” Eileen said. “I hope they did, anyway.”

“Early-stage Tierra del Fuegan?” Mitch asked.

“That's what most of us think. From the Australian migration out of South and Central America.”

Such migrations had been charted more and more often in the last fifteen years; Australian skeletons and associated artifacts found near the tip of South America had been dated to older than thirty thousand years BP, before the present.

The two other women walked around them to reach the exit, as serious and unsocial as porcupines. A plump, red-faced woman a few years younger than Eileen held the flap open for them then stepped in and stood before Mitch. “Is this the famous Mitch Rafelson?” she asked Eileen.

“Mitch, meet Connie Fitz. I told her I'd bring you here.”

“Delighted to meet you, after all these years.” Fitz wiped her hands on a dusty towel hanging from her belt before shaking hands. “Have you showed him the good stuff?”

“We're getting there.”

“Best picture of Gertie is on sweep 21,” Fitz advised.

“I know,” Eileen said testily. “It's my show.”

“Sorry. I'm the mother hen,” Fitz said. “The others are still arguing.”

“Spare me,” Eileen said. Another image cast their faces in a pale greenish light.

“Say hello to Gertie,” Merton said. He glanced up at Mitch, waiting to see his reaction.

Mitch poked the surface of the screen, making the light pool under his finger. He looked up, on the edge of anger. “You're kidding me. This is a joke.”

“No joke,” Merton said.

Eileen magnified the image. Then, clearing his throat, Mitch asked, “Fraud?”

“What do you think?” Eileen asked.

“They're in close association? Not in different layers?”

Eileen nodded. “They were buddies, probably traveling together. No infants, but as you can see, Gertie was maybe fifteen or sixteen, and she was probably gravid when the ash covered her.”

“Either that or she ate babies,” Merton said. Another twitch of the lip from Eileen.

“Oliver's on borrowed time,” Fitz said.

“Matriarchy,” Merton accused, deadpan.

The tent suddenly seemed very stuffy. Mitch would have sat down had there been a convenient chair. “She looks early. Different from Charlene. Is she a hybrid?” he asked.

“No one's willing to say,” Eileen replied. “You'll like our late-night debates. A few weeks back, when I wanted you to join us, everyone shouted me down. Now, we're all at each other's throats, and Oliver, I'm told, convinced Daney it was time.”

“I did,” Merton said.

“Personally, I'm glad you're here,” Eileen added.

“I'm not,” Fitz said. “If the feds find out about you, if there's any publicity at all, we're NAGPRA toast.”

“Tell me more, Mitch,” Eileen suggested.

Mitch massaged the back of his neck and for the ninth time watched the image of the skull grow and rotate. “Skull seems compressed. She's long-headed, more even than the Australian. There's a flint implement near her hand, and she's carrying some sort of grass bag over her shoulder, if I'm not mistaken.”

“You're not.”

“Filled with what looks like bush or small tree roots.”

“Desperation diet,” Fitz said.

“Maybe that was just her assignment, gathering roots for the stone soup.”

Merton looked puzzled. Eileen explained stone soup.

“How colonial,” Merton said.

“Ever the B-movie Brit, aren't you?” Fitz said.

“Please, children,” Eileen warned.

“Relatively tall, taller than Charlene, maybe, and pretty robust, heavy boned,” Mitch continued, trying to talk himself out of what he was seeing. “Sloping forehead, mid-sized to small brain case, but the face is fairly flat. Impressive supraorbital torus. A bit of a sagittal keel, even an occipital torus. I'd love to get a better look at the incisors.”

“Shovel-shaped,” Eileen said.

Mitch rubbed his limp hand to still the tingling and looked at the others as if all of them might be crazy. “Gertie is much too early. She looks like Broken Hill 1. She's Homo erectus.”

“Obviously,” Fitz said with a sniff.

“They've been extinct for more than three hundred thousand years,” Mitch said.

“Apparently not,” Eileen said.

Mitch laughed and stood back with a snap as if he had been leaning over a wasp that had suddenly taken flight. “Jesus.”

“Is that it?” Eileen asked. “Is that the most you can say?” She was kidding, but her tone had an edge.

“You've had longer to get used to it,” Mitch said.

“Who says we're used to it?” Eileen asked.

“What about the fetus?”

“Too early and too little detail,” Fitz said. “It's probably a lost cause.”

“I'm thinking we should drive a tube, take a thin core sample, and PCR mitochondrial DNA from the remaining integuments,” Merton said.

“Dreamer,” Fitz said. “They're twenty thousand years old. Besides, the lahar cooked them.”

“Not to mush,” Merton countered.

“Think like a scientist, not a journalist.”

“Shh,” Eileen said in deference to Mitch, who was still staring at the rolled-out screen, mesmerized. “Here's what we have on the central group,” she said, and paged through another set of ghostly images. “Gertie and Charlene are outliers. These four are Hildegard, Natasha, Sonya, and Penelope. Hildegard was probably the oldest, in her late thirties and already racked with arthritis.”

Hildegard, Natasha, and Sonya were clearly Homo sapiens. Penelope was another Homo erectus. They lay entwined as if they had died hugging each other, a mandala of bones, elegant in their sad way.

“Some of the hardliners are calling this a flood deposition of unassociated remains,” Fitz said.

“How would youanswer them?” Eileen challenged Mitch, reverting to his teacher of old.

Mitch was still trying to remember to breathe. “They're fully articulated,” he said. “They have their arms around each other. They don't lie at odd angles, tossed together. This is in no way a flood deposit.”