"At least he knows his business." He nodded toward Ben. "I read his file. A celebrated search-and-rescue worker, specializing in cave reconnaissance. Two years ago, he rescued an experienced research crew in the Lechuguilla caves. The researchers had disappeared for eight days, and no one could find them. Ben went in alone and came out with a broken leg and the four crew members. He knows his caves. Almost a sixth sense."

"I didn't realize…" She glanced at Ben, who was now playing cards with Jason. She sat there pondering the revelation.

"Your file was just as impressive," the major said.

"My file?"

"You seem to have an amazing ability to ferret out new discoveries in otherwise heavily researched sites."

She just shrugged at his praise. The major seemed extraordinarily talkative. He'd otherwise been so close-lipped and stoic. She turned to him. "You sure as hell know a lot about us, but all I've received were tickets and a schedule. I don't even know your first name."

"It's Dennis," he said. "Dr. Blakely plans a full debriefing at Alpha Base."

Major Dennis Michaelson, she thought. With a first name, the major almost seemed human. She settled back in her seat. "Where are you from, Dennis?"

"Nebraska. Our family's farm is just outside North Platte."

"So why did you join the Marines?"

"My brother, Harry, and I joined together. He's a big motor buff-cars, bikes, drag racing, that sort of thing. He joined to get his hands dirty on even bigger engines. The guy was never happy unless his hands were filthy with oil. Always needing to tinker." An affectionate smile had appeared on Michaelson's face as he described his brother.

"And what about you? What drew you away from the farm?"

"Partly to keep an eye on Harry. But also, as I said, our family farm's just outside North Platte. And North Platte is just outside of nowhere."

"So you joined to see the world. And now here you are. Serving at the bottom of it."

"Yes," he said almost fiercely. "And right now North Platte never looked so good."

"So why not quit and go back to the farm?"

His face suddenly clouded over, black eyebrows pulling together. He shook his head but remained silent.

She tried to extract more from him. "How did you get hitched with such a dull assignment? Guarding a bunch of scientists."

"I volunteered," he mumbled.

She crinkled her nose. Not exactly the expected decision of a career military man. No prestige, no glory, stationed at the ass-end of the world. "Why?"

He shrugged his shoulders. "I have my reasons." He unbuckled his seat belt and climbed out of the seat, grumbling about using the restroom.

Alone, she went back to studying the landscape passing below the skis of the aircraft. Sun reflected off the ice. The more she got to know her teammates, the less she seemed to understand them. But what else was new? She never understood people. Look at her marriage. A honeymoon that lasted eight years until one day she came home early from a dig-nauseated by morning sickness-and discovered her husband in their bed with his secretary. No warning signs. No lipstick on a collar. No blond hair on his jacket. Nothing. A mystery to her.

Ashley placed a hand on her belly. Scott's infidelity was not the worst of it. She remembered the cramping pain and the rush of blood. The emotional overload from his betrayal had triggered a miscarriage. Losing the child had almost destroyed her. Only Jason, then seven years old, had kept her sane.

Even though years had passed, a part of her ached when she remembered how much she had lost. Not just the baby, but her faith in people. She refused to let herself be so gullible, so vulnerable again.

Slumping into her seat, she stared out the frosted window. Just at the edge of the horizon, a tower of smoke rose into the air, a dark signature against the blue sky. She sat up straighter. As the plane droned on, the source of the gray plume appeared, rising from the flat surface like some awakening giant. Mount Erebus.

The interior of the Dodge van reeked of cigarette smoke and bounced in rough sync with the bass beat of a Pearl Jam cassette. A tired midday sun protruded wanly over the summit of Mount Erebus. The driver, a young Navy ensign, bobbed his head to the music. "Almost home," he called over his shoulder. "Just around the next ridge of ice." The road from Williams Field to McMurdo Base was a rough-hewn stretch of carved ice. With a final molar-jarring bump as they circled the ridge, Ashley viewed their destination.

She swiped a glove over the steamed passenger window. The other team members were doing the same. Beside the blue ice shelf encasing the Ross Sea, McMurdo Base was a black smudge. An industrial complex of gray buildings dwarfed by a huge junkyard to the south. The van trundled past an ignited trash dump fuming oily smoke into the blue sky.

A Navy helicopter screamed over the van, the pressure and sound vibrating the windows. Jason covered his ears. The base buzzed with other helicopters. Ashley tapped the driver on the shoulder. "Is it always this busy here?"

The driver gave her a thumbs-up sign. "This is a slow day," he yelled.

She leaned back into her seat. Great.

Blakely smiled. "We'll only be stopping here for a couple of hours, then we'll proceed directly to Alpha Base. It's much quieter down there." He glanced wistfully out the window. "Actually, after a year or so, you get accustomed to the commotion and smell up top here. I almost miss it."

"Seems like a lot of pollution for a scientific station," Linda said with a grimace. "These surrounding biocommunities are fragile."

Blakely shrugged. "We've been allocated a ten-million-dollar cleanup fund. It'll get better."

"I sure hope so," Linda said.

They were dropped off near a cement-block building. Ashley tightened her parka around her; the wind burned as it whipped across her cheeks. Frostbite could set in within mere minutes if unprotected. Her teammates dashed for the entryway. She made sure Jason was ahead of her. She didn't want him wandering off and getting lost.

Warmth. The interior was heated but felt humid and sticky, the pungent odor of sweat prevalent. Crinkling her nose, she noticed the hallway was lined with a rainbow of colored parkas hung on pegs.

Blakely directed them to hang up their parkas. "Don't worry about them being stolen. To steal someone's coat is a hanging offense here."

Ashley helped Jason off with his parka and hung it next to hers.

"We'll only be stopping for lunch, then proceeding directly to Alpha Base," Blakely continued. "The E-mess is at the end of this corridor. Help yourselves and unwind. We'll meet back here in two hours. There's also a recreation room with Ping-Pong and pool tables around the corner from E-mess. Enjoy yourselves."

"You won't be joining us?" Ashley asked.

"No, I'm meeting with the base captain to iron out the last few details."

After Blakely left, they proceeded to the mess hall. A few Navy personnel raised an eyebrow or two as they passed. One young gentleman stared at Ashley for longer than she liked, until a stern glare sent him scurrying. As a whole, though, the Navy crew seemed unfazed by the newcomers. She guessed that as a base of operation for the National Science Foundation, they had become accustomed to an influx of new faces.

Ashley balanced a tray laden with two apples, a thick sandwich of luncheon meats, and a pint of milk. Jason had tried to fill his tray with pudding and cookies until she pointed for him to return the treats. "Lunch first. Then you can have a chocolate pudding and one cookie."

Jason moped his way to the table with the smallest sandwich he could find, his eye still straying to the dessert bar.

Ben joined them at their table. Major Michaelson, Khalid, and Linda took a neighboring table.