Chapter 168
The iron ladder inside the hatch was coated in a thin layer of hoarfrost that bit through Leo’s work gloves as he climbed down into the pitch blackness beneath the wharf.
The heavy air in the subterranean cavity smelled of sulfur, damp mortar, and old river silt. Above him, through the thick concrete ceiling, the muffled sound of the diamond-tipped drill vibrated through the steel frame—a low, rhythmic thrum-thrum-thrum that rattled the dry mortar from the exposed brick arches.
Leo dropped the last three feet onto the narrow concrete catwalk, his boots landing with a dull, heavy thud. He clicked on the waterproof lantern. The harsh beam cut through the freezing vapor, illuminating the ancient, barrel-vaulted ceiling built by his grandfather sixty years ago.
The main Vance Dynamics server room was tucked forty feet behind him, locked behind its military-grade concrete door. But straight ahead, where the brick arch met the frozen riverbed, a spiderweb of fresh cracks was spreading across the old masonry.
"Leo," Catherine’s voice came crackling through the industrial radio clipped to his collar, distorted by the dense concrete above. "I'm tracking their signal on the spatial reader. They're operating from a flat-bottomed ice barge anchored right beneath the timber quay. They’re using a silent hydraulic rig to bypass the upper noise sensors."
Leo stepped off the catwalk onto the packed gravel floor, his lantern beam sweeping across the secondary water bypass line. "They’re ten feet from the outer brick skin," he reported into the radio, his voice flat and perfectly steady. "They aren't trying to pull the drives out through the river. They're trying to drop a fiber-optic splice cable straight into the physical server rack through the secondary drainage pipe."
"If they get a physical tap into the master algorithm loop, they don't need to physically extract the servers," Catherine said, her tone sharp with sudden realization. "They can mirror the entire European transit schedule onto their regional drive in less than six minutes."
"Not through this wall," Leo said.
He set the heavy lantern on a flat stone pillar, reached down, and took a firm grip on the steel crowbar.
The brickwork in front of him vibrated violently as the drill head punched through the outer three inches of old lime mortar. A cloud of fine red dust exploded inward, followed instantly by a tiny, needle-thin jet of black, freezing river water that hissed as it struck the concrete floor.
Beyond the small hole, through the dark gap in the timber pilings, Leo could hear the muffled, muffled voices of two men working in the tight space beneath the ice barge, speaking in quiet, rapid Dutch.
Leo didn't hesitate. He stepped right up to the wall, wedged the flat edge of the steel crowbar into the secondary valve housing directly above the drill point, and threw his entire broad-shouldered weight against the lever.
The thirty-year-old iron valve groaned, its rusted threads screaming under the sudden, massive torque.
"Leo!" Catherine shouted over the radio. "What was that noise?"
"Changing the pressure," Leo muttered, his boots slipping slightly on the damp gravel as he threw his full broad chest into a second, brutal push.
With a violent CRACK, the internal bypass gate snapped fully open.
The secondary water line—holding five thousand gallons of pressurized municipal runoff behind the upper cradle lock—dumped directly into the narrow cavity between the brick wall and the outer timber quay.
A deafening roar of rushing water echoed through the narrow subterranean vault. The sudden, immense hydraulic pressure hit the drill hole from the inside out. Outside, the two men on the ice barge shouted in sudden panic as a four-inch column of icy water and shattered brick exploded back through their drill shaft, flooding their hydraulic generator and snapping their diamond bit clean off in the wall.
The high-pitched hum of the drill choked out, replaced by the heavy, sloshing sound of water filling the narrow gap under the barge, followed by the frantic scraping of boots scrambling across frozen wood.
Inside the vault, the jet of water abruptly died down to a slow, harmless trickle as the automatic pressure valves sealed the secondary channel. The brick wall stood intact, its heavy structural arch locked tightly in place under the weight of the elevated steel cradle above.
Leo stood in the quiet darkness, his heavy chest rising and falling slowly in the freezing air, his right hand still resting on the cold iron valve.
He unclipped the radio from his jacket collar. "Catherine."
There was a long pause of heavy static, and then a long, ragged breath broke through the speaker. "I lost their spatial signal," Catherine said, her voice trembling slightly before settling into a cool, victorious calm. "The reader shows their generator went offline. The barge is pulling back across the ice toward the northern basin."
"They left their bit in the brick," Leo said, looking down at the steel crowbar in his hand. "Tell Marcus to bring six bags of fast-setting hydraulic cement when he comes tomorrow morning. We have a hole to patch."
"He’s already on his way," Catherine said softly, a faint, genuine warmth in her voice. "He just called from the highway. He’s riding in the truck with my father."
Leo picked up his lantern, his broad shadow stretching long and dark across the ancient brick arches that had held the river back for thirty years. He reached into his jacket, his fingers brushing against his mother's black notebook, checking to make sure it was dry and secure against his chest.
He turned back toward the iron ladder, stepping lightly over the gravel floor as the silent, freezing night settled deep over the textile wharf. The vault was quiet, the algorithms were secure, and the steel above held the city fast.