He called down to Giordino, who was standing below and behind him, hunched over a chart table studying a map of the Ross Ice Shelf "How about giving me a heading?"
"Just keep the front end of this geriatric antique aimed toward the highest peak of those mountains dead ahead. And, oh yes, be sure to keep the sea on your left."
"Keep the sea on my left," Pitt repeated in exasperation.
"Well, we certainly don't want to run off the edge and drown, do we?"
"What if the weather closes in and we can't see?"
"You want a heading," Giordino said cynically. "Pick any compass direction you want. You've got three hundred and sixty choices."
"I stand chastised," Pitt said wearily. "My mind was elsewhere. I'd forgotten that all compass readings down here point north."
"You'll never get on Jeopardy."
"Most of the category questions are beyond my meager mental capacity anyway." He turned to Giordino and made a shifty grin. "I'll bet you tell bloody horror bedtime stories to little children."
Giordino looked at Pitt, trying to decipher his meaning. "I what?"
"The cliffs at the edge of the Ross Ice Shelf reach two hundred feet above and nine hundred feet below the surface of the sea. From the top edge to the sea is a sheer drop. We drive off the ledge, there won't be enough left of us to sail anywhere."
"You have a point," Giordino grudgingly conceded.
"Besides falling into a bottomless crevasse or becoming lost and freezing to death in a blizzard, our only other dilemma is if the ice we're driving on breaks loose or calves and carries us out to sea. Then all we'll be able to do is sit and wait for a cataclysmic tidal wave launched by the polar shift to sweep us away."
"You should talk," Giordino said, his voice heavy with sarcasm. "Your bedtime stories make mine sound like Mother Goose science fiction tales."
"The skies are darkening," Pitt said, staring upward through the windshield.
"Do you still think we can make it in time?" asked Giordino.
Pitt glanced down at the odometer. "We've come twenty-one miles in the last hour. Barring unforeseen delays, we should be there in just less than two hours."
They had to make it in time. If the special assault team failed, then he and Giordino were the only hope, as inadequate for the job as any two men seemed. Pitt did not bask in an aura of optimism. He well knew the terrain ahead was fraught with obstacles. His biggest fears were rotting ice and crevasses seen too late. If he wasn't constantly alert, he could drive the Snow Cruiser into a deep crevasse and send it plunging hundreds of feet into the Antarctic Sea below. So far, the frozen wasteland lay fairly flat. Except for thousands of ripples and ruts like those found in a farmer's plowed field, the ride was reasonably smooth. Occasionally, he'd spot a crevasse hiding in the ice ahead. After a quick stop to appraise the situation, he'd find a way to detour around it.
The thought that he was driving a thirty-five-ton lethargic monster of steel across an icy plain with deep fissures looming unseen in every direction was not comforting. Few words in a dictionary could describe the feeling. Suddenly, a crack in the ice became visible, but only after he vas almost on top of it. With a hard twist of the wheel, he dewed the Snow Cruiser around sideways, stopping it within five feet of the edge. After driving parallel to the chasm for half a mile, he finally found a firm surface five hundred yards from where it vanished in the ice.
He glanced at the speedometer and noted that the speed had slowly crept up to twenty-four miles an hour. Giordino, down in the engine room, was fussing with the two big diesel engines, delicately adjusting the valves on the fuel intake pumps and increasing the flow. Because Earth's air is thinner at the poles due to a faster rate of spin, and because it is extremely dry and cold, the fuel ratio needed to be reset, a chore Dad and his crew had not yet performed. Fuel injection was constant on newer diesel engines, but on the sixty-year-old Cummins, the fuel flow to the injectors could be altered.
The frozen desert ahead was bleak, desolate and menacing, while at the same time a landscape of beauty and magnificence. It could be tranquil one moment and frightening the next. In Pitt's mind, it suddenly became frightening. His feet stomped the brake and clutch of the Snow Cruiser, and he watched stunned as a crevasse no more than a hundred feet away opened and spread apart, the crack stretching as far as he could see in both directions across the ice pack.
Dropping down the ladder from the control cabin, he threw open the entry door, stepped outside, and walked to the edge of the crevasse. It was a terrifying sight. The color of the ice on the sides that fell out of sight turned from white at the edge of a beautiful silver-green. Its gap spanned almost twenty feet. He turned as he heard the crunch of Giordino's feet behind him.
"What now?" questioned Giordino. "This thing must run forever."
"Frank Cash mentioned that the wheels could retract to cross crevasse. Let's check out the operation manual that Dad gave us."
As Dad had told them, the Snow Cruiser's designer, Thomas Poulter, had come up with an ingenious solution for the crevasse problem. The underside of the cruiser's belly was flat like a ski, with a front and rear overhang of eighteen feet on both ends from the wheels. Following the instructions in the manual, Pitt pressed the levers that retracted the front wheels vertically until they were level with the body. Then, using the rear wheels for traction, he drove the Cruiser slowly forward until the front section slid across the crevasse and rolled past the opposite edge a safe distance for stability. Next Pitt extended the front wheels and retracted the wheels in the rear. Now using the front-wheel drive, the rear half of the cruiser was pulled the rest of the way over the chasm. After, extending the rear wheels, they were on their way again.
"I do believe I'd call that a brilliant innovation," Giordino said admiringly.
Pitt shifted gears and turned the bow of the Snow Cruiser back toward the peak that had expanded into a range of mountains. "Amazing how he could be farsighted on one mechanism and yet badly underestimate the gearing and tire tread."
"No one is flawless. Except me, of course.'
Pitt accepted the bluster with practiced patience. "Of course."
Giordino took the manual with him into the engine compartment, but not before pointing to the twin temperature gauges on the instrument panel. "The engines are running hotter than normal. Better keep an eye on them."
"How can they run hot when it's twenty degrees below zero outside?" Pitt queried.
"Because their radiators are not exposed. They're mounted directly in front of the engines inside the compartment. It's almost as if they overheat themselves."
Pitt had hoped darkness would cloak their arrival at the mining compound, but at this time of year in the Antarctic, the sunset had barely occurred before it was dawn again. He didn't fool himself into thinking they could infiltrate the facility without being detected, certainly not in a gargantuan fire-engine-red snow vehicle. He knew he'd have to think of something in the next hour and a half. Soon, very soon, the buildings of the extraction plant would appear on the horizon along the base of the mountains.
He began to feel a tinge of hope, but then, as if an unseen force was working against him, the atmosphere grew heavy and congealed like a lace curtain. The wind suddenly swept in from the interior of the continent with the force of a tidal wave. One minute, Pitt could see for sixty miles. The next it was as though he was gazing through a film of water, fluid in motion, iridescent and ephemeral. The sky was gone in the blink of an eye and the sun totally blotted out, as the wind charged over the ice shelf like a raging monster. The world became a swirling pall of pure white.
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