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  Using his cursor, Paul drew an X at the location Gunn indicated.

  “Someone went to a great deal of trouble to salvage that ship,” Austin said. “Maybe it holds the key to unraveling this whole mess.”

  Gunn turned to the captain. “How soon can we haul anchor and get moving?”

  Atwood had kept silent throughout the ensign's presentation and the NUMA team's discussion. He smiled and said, “You people have been so engrossed in the Black Sea, you didn't notice me calling the bridge. We're on our way. Should be on-site in the morning.”

  The faint vibration of the engines came through the deck under their feet. Gunn got up. “I'm going to hit the sack. Tomorrow could be a long day.” Austin got directions to his cabin, then told Joe that he'd catch up with him later. When Austin was alone, he sat at the table and stared at the lines and squiggles of the Black Sea map projected on the screen as if they were letters of an unknown language whose secret could be unlocked by a Rosetta Stone. His eye fastened on the X that marked the position of the mystery ship.

  He sorted through the events that had brought him to this place on a NUMA vessel in pursuit of what? He felt like someone making his way through a snake pit, trying to pick out the nonpoisonous snakes from the vipers. He snapped off the lights and left the conference room. As he made his way to his cabin, he had a depressing thought. Maybe they were all poisonous.

  NUMA 3 - Fire Ice

  -20-

  THE GRAY DAWN light streaming through the cabin porthole woke Austin up. He glanced over at Zavala, who was in the next bunk, no doubt lost in a dreamworld of red Corvettes and beautiful blond statisticians. He envied his partner's ability to drop off to sleep, snooze soundly through the night and wake up fresh and ready for action. Austin's own slumber had been fitful, disturbed by churning thoughts, as if his brain were searching for answers hidden in the maze of his subconscious.

  Levering himself out of bed, Austin went over to the sink and splashed cold water on his face. He dressed quickly, pulling on jeans, a heavy sweatshirt and a windbreaker, and stepped out of the cabin. A cool morning breeze from off the water smacked him in the face and blew away the lingering shreds of sleep. The sun's eyebrow was starting to peek over the eastern horizon, its soft rays bathing the clouds in a reddish gold light.

  With the Argo steaming at fifteen knots, Austin hung over the railing and stared out at the opaque surface of the sea, listening to the soothing hiss of the waves against the hull. Seabirds skimmed the foam like windblown confetti. It was hard to believe that a few hundred feet below was the most lifeless place on the planet. The Black Sea was a big puddle of dead water, but Austin knew that an abyss with far more reason to be feared was the remorseless evil that lurked in the depths of the human mind. Austin shivered, not entirely from the cold, and headed back into the ship.

  As he stepped through the door into the warmth of the mess hall, the mouth-watering bouquet of coffee, fried eggs and bacon provided an antidote for his morbid mood, and his spirits improved. Except for the blue sea visible through the windows, the ship's dining area could have been a smaII-town breakfast hangout where the locals have coffee mugs with their names on them. Sleepy-eyed crew members coming off the night watch occupied a few tables.

  Austin grabbed a coffee to go. On his way to the bridge, he encountered the Trouts, who had come down for break- fast earlier and taken a tour of the ship. Together they climbed up to the wheelhouse, where the wraparound windows gave a wide view of the bow and deck.

  Rudi Gunn, an early riser going back to his navy days, stood near a bank of instruments and monitors, talking to Captain Atwood. He smiled broadly when he saw his colleagues. “Good morning, everyone. I was about to go looking for you. The captain was going over his plans for the wreck site.”

  “Looking forward to hearing them,” Austin said. “How soon will we be on-site?”

  Atwood pointed to a circular gray screen with white concentric circles etched into the glass. Specks of gray indicated the GPS readings from an antenna that picked up information from the network of twenty-four satellites orbiting the earth at a height of eleven thousand miles. A digital readout next to the screen displayed current latitude and longitude. The system could place the ship within thirty to forty-five feet of its target.

  “We should be on-site in about fifteen minutes if the navigational coordinates from the sub sailor's Dick Tracy wrist-watch are on the mark.”

  “You weren't joking when you said we'd be there first thing this morning,” Austin said.

  “The Argo may look like a workhorse, but she's got racing genes in her blood.”

  “What are your plans for the initial survey?”

  “We'll map out the general area with side-scan sonar using our new UUV, then take a closer look. The crew is down on the deck getting things ready.” The Unmanned Untethered Vehicle, or UUV, was one of the hottest developments in undersea exploration.

  Paul asked to see a chart. The captain pushed aside a blue curtain that divided the wheelhouse from the smaller chart room. A map of the Black Sea was spread out on the table. “We're here,” Atwood said, putting his finger on a spot off the western shore of the Black Sea.

  Trout's tall form bent over the chart. “We're over the edge of a shallow underwater shelf that wraps around the shoreline past Romania and the Danube delta, the Bosporus and around to Crimea in the north.” He turned to his wife. “Gamay can fill us in on the biological and archaeological angles.”

  Gamay took over. “The shelf Paul talked about is an incredibly productive fishery. It's home to salmon, beluga sturgeon, turbot. You'll find dolphins here and bonito, although the stocks are down. Some say the Turks have over- fished the sea, but they say it's European Union pollution coming from the Danube. What's not in dispute is the fact that below a fluctuating depth of around four hundred fifty feet, there is no life. Ninety percent of the sea is sterile. With the fish population down, huge red tides and jellyfish infestations have come in. People are concerned enough to actually start doing something.”

  “That's how NUMA came to be involved,” Captain Atwood said. “We were collecting information for a joint Russian-Turkish project.”

  “I was wondering why you didn't have representatives from either country aboard,” Paul said.

  “On earlier trips the government observers spent most of their time telling the ships where they couldn't conduct surveys. Admiral Sandecker insisted on carte blanche when NUMA was asked to lend a hand. Which meant no observers on this preliminary survey. Between his prestige and their desperation, he was able to hold his own.”

  “These countries have a good reason to be desperate,” Gamay said. “The pollution is creating the conditions for a 'turnover.' If the dead water rises to the top, everything in the sea and around the rim could be wiped out.”

  “There's nothing like the threat of extinction to get people off their butts,” Gunn remarked.

  “That would do it for me,” Austin said. Trout drew his finger along the map. “The bottom here will be covered with black mud over clay that marks the change of the ancient lake to a sea. When you get beyond the edge of the shelf, we find deep submarine canyons carved into the steep shelf slope. Ten thousand years ago, the sea level was a thousand feet lower than it is now. The flood theory suggests that sixty thousand square miles were inundated by the waters of the Mediterranean.”

  “Which made anyone with a boat very popular,” Austin said.

  Gamay said, “This deals directly with our situation. As Paul explained last night, ship worms can't survive in the deep water, so wooden wrecks will be perfectly preserved for thousands of years. And steel ships will disintegrate.”

  A crewman called the captain into the wheelhouse. Atwood excused himself. A minute later, he returned, his face wreathed in a wide grin.

  “We're on target. Our mystery ship should be right below our radio antenna.”

  Gunn said, “Remind me to send a bouquet of flowers to the young woman who gave
her sailor boy a GPS watch.”

  Austin looked out at the sea stretching to the horizon and thought of the wasted time that could have been spent in a fruitless search for the ship. “I've got a better idea,” Austin said. “Let's send her a whole greenhouse.”

  Zavala arrived and they went down to the starboard deck, where sunlight gleamed off the metal skin of a small torpedo that rested in an aluminum rack. The tall man disconnecting a computer modem attached to the device was Mark Murphy, the Argo's expert in remote-operated undersea vehicles.

  Murphy was a nonconformist who scorned the NUMA work coveralls for his own uniform: faded jean cutoffs, chamois shirt worn over a T-shirt, scuffed work boots and a short-billed baseball cap. Both his cap and T-shirt had the word Argonaut printed on them. He was in his early fifties, and a thick salt-and-pepper beard covered his chin, but his ruddy sunburned face glowed with boyish enthusiasm.

  He saw Zavala gazing at the torpedo and said, “Be my guest.”

  “Thanks.” Zavala ran his fingertips lightly over the wide stripes of green, yellow and black painted on the metal skin. “Sexy,” he said with a low whistle. “Very sexy.”

  “You'll have to excuse my friend,” Austin said. “He hasn't had shore leave for at least twenty-four hours.”

  “I understand perfectly,” Murphy replied. “This baby is hot. Wait'll you see the way she performs.”

  Austin was amused but not surprised to hear the two men fawn over the device. Zavala was a brilliant marine engineer who had designed or directed construction of many underwater vehicles. Murphy was the Argo's expert in their use. To them, the clean lines of the compact object cradled in its aluminum rack were as sensual as the curves of the female body.

  Austin could understand their passion. The UUV was only 62 inches long, 7.5 inches in diameter and weighed a mere eighty pounds. But the bantam-sized device represented the cutting edge of undersea exploration, a vehicle that could operate almost independently of its shipboard controllers. This model was developed by the Woods Hole Oceanographic Institution, which had dubbed it SAHRV, for Semi-Autonomous Hydrographic Reconnaissance Vehicle.

  “We're about ready to launch,” Murphy said. “We've dropped two separate transducers over the side, one at each comer of the survey area. That sets up the navigational net. The vehicle talks constantly with the transducers that tell it where it is at all times. The data she picks up will be recorded on a hard drive and downloaded later.”

  “Why not telemeter the information directly back to the ship?” Austin asked.

  “We could, but the data would take too long to make it through the water. I've told the vehicle to survey ten one-hundred-foot lanes at high resolution for a start. She'll run at five point five knots around ninety feet off the bottom. The collision avoidance sonar will make sure she goes over or around any big obstacles.”

  Murphy reached over and pressed a magnetic switch on the side of the vehicle. The battery-powered stainless steel propeller whirred softly. With the help of another crewman, Murphy gently lowered the rack into the water.

  The Argo bristled with an amazing array of winches and cranes to handle the variety of electronic eyes and ears and hands, manned and unmanned submersibles the scientists on board dropped into the ocean. One crane, so powerful it could lift a house, also had weak links that would deliberately break under undue stress - that was to prevent them from sinking in case the ship hooked onto an undersea mountain.

  Most of the heavy equipment was lowered through the moon pool, a center section of the Argo's hull that opened to the sea through huge sliding doors. With the UUV, however, it was only a matter of lowering it over the side. The propeller grabbed water and the vehicle took off like a fish released from a hook. It headed away from the ship and arced into a preprograrnmed thirty-foot circle when it hit open sea.

  “She'll go around four times to calibrate the compass,” Murphy explained. “The vehicle is talking to the navigational net now, getting its bearings through triangulation.” As they watched, the vehicle made a small circle and disappeared below the surface. “She's heading off to do her first lane.”

  “What do we do now?” Austin said.

  Murphy gave them his big-toothed grin. “We go have some coffee and doughnuts.”

  NUMA 3 - Fire Ice

  -21-

  THE UNDERSEA VEHICLE moved back and forth above the ocean floor in a lawn-mowing pattern, its path on the ocean floor displayed on the computer screen. When its task was finished, the UUV homed in on a third transducer like a puppy who'd heard the word bone. The vehicle nosed up to the side of the ship, where it was snagged in a special pickup rack and lifted back on deck. Murphy hooked up a modem and transferred all the data from the dripping vehicle to his laptop computer. Then he disconnected the computer.

  Tucking the laptop under his arm, Murphy led the way to the conference room, where he set the laptop down on a table and connected it to a large-screen monitor. The computer's SeaSone software began to generate high-resolution sonar images in slow motion onto the screen, and the pictures of the seafloor as recorded by the UUV flowed down from the top of the monitor like twin waterfalls. Latitude, longitude and position were displayed to the right of the screen. Murphy adjusted the screen's color control to a yellow-brown that was easy on the eyes.

  The seafloor was largely unmarked. Occasionally, a boulder showed up or dark and light patches indicated differences in sediment. Halfway through its fourth track, the sonar caught two straight lines joined at an angle. All eyes were focused on the monitor as the vehicle finished the track, turned and came back. Murphy froze the picture.

  “Bingo!” he said. The unmistakable image of a ship stood out in sharp relief. With a click of the computer mouse, Murphy zoomed in the picture. The darks and lights became doors, hatches and portholes. The computer compiled the ship's measurements. “She's two hundred fifty feet long,” Murphy said.

  Austin pointed to a shadow on the hull. “Can you zoom in on that section?”

  Murphy obliged with a click of the mouse, and the section Austin had noticed appeared as a small box to one side of the screen. The scientist played around with the resolution until the hole in the side of the hull near the waterline was clearly visible.

  He ran off a full-color copy of the survey area, showing the target hits, and spread it out on a table. “She's at four hundred fifty feet,” he said. “Here's where the three-hundred-foot bottom begins to fall away into a canyon. The ship is on the slope, just past the lip of the cut. We're lucky. A few hundred feet farther and the wreck would have been lost forever from metal deterioration.”

  “Good job, Murphy,” Captain Atwood said. Turning to the others, he said, “I've got a crew ready to launch an ROV from the moon pool.” A robotic vehicle. They all moved to a small room that contained the control consoles for vehicles operating out of the moon pool. Gesturing toward a computer console, the captain said to Gunn, “Would you care to handle the controls, Commander?”

  Gunn's academic demeanor cloaked a personality that enjoyed action, and he had been charming in his role as a by-stander since boarding the ship. He was an experienced hand at running an ROV and needed no prodding. “I'd like that very much. Thank you, Captain.”

  “Whenever you're ready.”

  Gunn sat behind the control console and familiarized himself with the instruments and the feel of the joystick that controlled the ROV. Then he grinned and rubbed his hands together. “Drop 'er in.”

  The captain unclipped a small radio from his belt and gave a command. A moment later, the screen flickered to life and projected a view of the cavernous moon pool through the video camera in the nose of the ROV. The camera seemed to flood as the ROV was lowered into the pool. A diver wearing a wet suit came into view as he uncoupled the line attached to the lifting crane. Then he was gone, replaced by a cloud of bubbles and the deepening blue of the sea, as the ROV sank slowly beneath the open bottom of the ship.

  A thousand-foot Kevlar-jacketed tet
her connected the Benthos Stingray ROV to the ship. The tether transmitted Gunn's commands to the operating system and relayed the video picture back to the screen. The Argo carried larger and more powerful ROVs, but after hearing the NR-1 story, the captain had thought they would need a smaller vehicle that could be maneuvered into tight spaces. The vehicle was the size and shape of a large suitcase. Although the ROV was relatively small, it carried video and digital cameras and a manipulator arm.

  Moving the joystick with a skilled hand, Gunn angled the ROV into a long dive. The vehicle used the navigational net established for the UUV to find its way directly to the target. Color faded from the water, as each descending fathom took the ROV farther from the dappled surface light. Gunn switched on the twin 150-watt quartz halogen lights, but even their powerful beams were swallowed by the thickening gloom.

  The ROV smoothly descended to three hundred feet, then leveled out a few yards above the ocean floor. The vehicle bucked a slight bottom current that kept its speed under a knot as it moved forward above the black mud. Then the bottom dropped away and the ROV soared over the lip of the undersea canyon so suddenly that everyone in the room felt a slight wave of queasiness. Gunn nosed the ROV downward, keeping the vehicle parallel to the sharp slope.

  The ROV's side-scan sonar painted the target on a separate monitor until it was close enough for visual inspection. Gunn goosed the vertical thrusters, and the vehicle rose slowly above the vessel.

  The ship lay at an angle on the sloping side of the canyon, the bottom section of hull embedded in mud. The ROV descended several yards and moved alongside the hulk at main-deck level, past a row of portholes, including some that were still open. Barnacles covered most of the ship and heightened its spectral aspect. Reddish patches of antifouling paint peeked out here and there. The wooden wheelhouse had disintegrated and the decks had rotted away. The lifeboat davits were empty, and wire shrouds hung with seaweed. A pile of rusty debris was all that remained of the collapsed funnel.