Chapter 36 - The Siphon Gate

"Maeve, listen to me," Julian said, turning his pale, gray eyes toward me without lowering his shotgun. "The man behind the wheel isn't alone. There are six more outside the perimeter with short-barrel carbines and satellite uplinks. You can't win this in an open field, and you can't win it in a courtroom."
"Then what do we do?" I demanded, coughing against the lingering traces of the gas, the heavy steel box biting into my collarbone.
"You pull the lever," he said simply.
"Constance said that purges the chamber!"
"It purges the *entire ridge*," Julian corrected. "The drainage doesn't lead to a creek. It taps into the old mine flume that runs three miles under the state highway to the river gorge. When the siphon opens, the air pressure will pull every loose drop of water and every unanchored object down the chute. But the tunnel has an air pocket at the bypass valve four hundred yards down."
"We'll drown," I said.
"You'll drown if you stay here," Julian replied calmly. "Because in sixty seconds, the operator behind that wheel is going to realize his night-vision gear has recovered, and he is going to put a three-round burst through your center of mass."
From behind the iron wheel, the operator shifted his weight. The red aiming laser from his weapon flickered through the spray of water, painting a bright, lethal dot directly over my sternum.
"Drop the weapon!" the operator roared. "Drop it or the girl dies!"
Arthur didn't wait. He grabbed the rungs of the ladder and began scrambling upward toward the hole in the ceiling, desperate to save his own skin. "Clara! Pull me up! Pull me up!"
Julian didn't look at Arthur. He didn't fire at the operator.
With a motion smooth as grease, he reached down with the barrel of his shotgun, hooked the heavy bronze release ring of the floodgate purge, and yanked it upward with all his remaining strength.
The sound that followed wasn't an explosion.
It was an enormous, sucking roar, like a jet engine igniting inside a sealed tomb. The water on the floor didn't just drain; it dropped five feet in a single second, pulled by the terrifying hydraulic vacuum of sixty years of trapped subterranean pressure.
The air pressure inside the chamber plummeted. My ears popped with a sound like pistol shots.
The tactical operator, caught off-balance by the sudden current, was swept off his feet, his rifle ripped from his hands by the sheer momentum of the dark water rushing into the mouth of the drainage shaft. He let out one short, choked cry before he vanished into the black abyss beneath the floor.
"Maeve! Hold the line!" Constance screamed, her hands wrapping around the armored steel conduit.
The water caught me at the waist. The current was an unstoppable, freezing fist, dragging my boots off the slippery stone. I reached out blindly, my fingers catching the thick braided cable of the field telephone, but the sheer force of the flood tore my grip away.
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"Julian!" I screamed.
The old man threw his shotgun aside, lunged forward through the roaring foam, and locked his fingers around the shoulder strap of the ammunition box. With his other hand, he grabbed Constance’s coat, pulling both of us toward the narrow, reinforced lip of the concrete bypass chute just as the entire wooden structure of the house above us began to buckle under the sudden collapse of the subterranean foundation.