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Pitt listened, and noted that the rumble originated up the mountain rather than beneath the ground. It was a thundering noise that refused to wane, growing louder each second. The tone seemed to transform from a rumble to a rush as it drew closer. Everybody in the compound stared toward the main entrance, where the sound seemed to be heading. Unbelievably, the rushing noise grew still louder till it matched the roar of a dozen 747 jumbo jets blasting down a runway in unison.

Over the din, a pair of panicked shouts burst forth near the compound entrance. Unseen outside the walls, the two front-entry guards hurried to open the heavy iron gate. Their cries and bid to escape vanished under the crushing face of a giant wall of water.

A quarter mile upstream, the earthquake had triggered a deep chasm perpendicular to the riverbank.

The raging river waters swirled in a confused vortex as the force of gravity led it in a new direction. Near the mouth of the aqueduct, the entire river shifted laterally, staking a new course alongside the elevated dirt road.

The river had rushed toward Borjin's compound before pooling in a large depression. A high berm, built as an equipment causeway between the road and the aqueduct, created an unintended dam within sight of the compound. The surging waters filled the depression, turning it into a large reservoir before the surplus flow began dribbling over the top. The overflowing water cut a crack in the dirt wall that quickly expanded to its base. In a flash, the entire berm collapsed under its own weight, releasing a surging wall of water.

The accumulated pool of icy black water burst toward the compound in a ten-foot-high wave. The front guards, oblivious to the approaching floodwaters until it was too late, were crushed by the wave as it smashed into the gate and gushed over the compound walls. The torrent lost little momentum before ripping away the front gate while also breaching a large hole through the wall above the aqueduct. The two swells of water merged forces inside the compound and surged toward the residence in a six-foot-high rolling wave.

Pitt gazed at the approaching wall of water and knew there was no chance of them outrunning it, especially Giordino and Wofford. Sizing up the surroundings, he saw one chance at survival.

"Grab hold of the columns and hang on," he shouted.

The Doric marble columns supporting the portico were deeply fluted, allowing a firm grasp to be made on the vertically cut edges. Theresa and Wofford stretched their arms completely around a column and linked hands. Giordino reached a thick arm around his column, keeping the Makarov held tight in his other hand. Tatiana abandoned her fright of getting shot and fearfully wrapped her arms around Giordino's waist in the face of the watery onslaught. Pitt barely had time to lie flat, grab the column, and hold his breath before the deluge hit.

But the shriek of men's voices arrived first. Encircling the drive in stealth, the guards were caught flat-footed by the floodwaters. The men were swept off their feet and devoured by the wave as it rolled toward the residence. Pitt heard the agonized cry of one guard just a few feet away as he was propelled toward the house by the surge.

The wave followed the path of least resistance, rolling across the northern part of the compound and mostly bypassing the lab and garage. Accompanied by a deep rumble, the advancing wave slammed into the residence with a crash. As Pitt had hoped, the marble columns took the brunt of the impact, but his legs were still ripped off the ground and pulled toward the house. He gripped the column tightly as the initial surge passed over and then the forceful tug of the water gradually receded. The initial fear of being battered and washed away by the flood was supplanted by the shock of the icy water. The bitter-cold water sucked the air out of his lungs and stung his skin like a thousand sharp needles. Grabbing the column, he pulled himself to his feet, finding the floodwaters had dropped to thigh level. At the adjacent column, he saw Giordino pull Tatiana up from under the water, the Mongolian woman coughing and sputtering. A second later, Theresa and Wofford emerged at the next column, gasping from the cold.

The wall of water had barreled into the house on its quest for a new pathway down the mountainside.

Though two feet of water swirled through a crater-sized opening that had been the front door, the bulk of the floodwaters had been repelled from the heavy structure. The tormented waters finally surged around the northern end of the residence, pouring over the backside cliff in a wide waterfall. Faint screams echoed above the river's rumble from scattered men who had survived the impact only to be washed downstream. Nearby, a loud splash pronounced that the northern tip of the residence had crumbled under the force of the rushing waters.

The surge and current eased at the front of the house, and Pitt waded toward the others congregating at Giordino's column. He grimly noted the stiff bodies of several guards floating about the driveway.

Reaching the column, he found Theresa staring at him through glazed eyes while shivering uncontrollably.

Even the rocklike Giordino appeared numb, the effect of the gunshot wound with the icy immersion sending him on a path to shock. Pitt knew they would all be facing hypothermia shortly if they didn't escape the freezing water.

"We need to get to dry ground. This way," he said, motioning toward the lab, which stood on a slightly elevated rise. Wofford helped guide Theresa while Pitt made sure Tatiana didn't stray from Giordino. He need not have worried, as Borjin's sister was quietly subdued from the icy bath.

The diverted river had settled into two main channels through the compound. The primary flow ran from the front gate to the northern edge of the residence, where the waters continued to gnaw at the collapsing walls. A secondary flow swirled toward the laboratory before angling back to the residence's portico. A portion of the waters rolled through the house, while the rest rejoined forces with the main flow wrapping around the side.

It was the secondary swirl that encapsulated Pitt and the others. He quickly guided the group out of the deepest section, but they still faced ankle-deep flows of the chilly water in all directions. Around them, shouts and yelling echoed across the grounds as the scientists tried to prevent the waters from flooding the laboratory. Inside the garage, somebody shouted as a car was heard starting up. Further chaos ensued outside. The guards' horses had escaped the corral during the earthquake and the frightened herd stampeded back and forth across the compound in nervous confusion.

Pitt had his own problems to contend with. Watching Theresa fall to her knees, he rushed to aid Wofford helping her up.

"She's fading," he whispered to Pitt.

Pitt looked in her eyes and saw a vacant stare. The uncontrollable shivering had continued unabated, and her skin was pale and clammy. She was on the verge of hypothermia.

"We need to get her warm and dry, pronto," Wofford said.

Standing in the middle of the flooded compound, their options were limited. They suddenly got worse when a vehicle in the garage came barreling out the bay doors with its lights ablaze.

Nearly a foot of water covered the ground around the garage, but the car plowed through it like a tank.

Pitt watched anxiously as the vehicle turned in their direction, heading toward the residence's entry. The driver flashed on his high beams, then began weaving back and forth like a drunken snake. In less than a minute, the bright headlights flared across Pitt and the others and the driver suddenly ceased swerving and accelerated straight for their position.