Chapter 2 - Concrete Echoes
The terrifying rumble of collapsing concrete vibrated through the soles of Sarah’s combat boots, sending fine gray powder cascading from the ceiling of the utility tunnel. She pulled Leo behind a heavy steel support beam just as a chunk of masonry slammed into the muddy floor where they had stood seconds before. The air turned thick, choked with dust and the acrid stench of burnt cordite.
"They're collapsing the upper levels to seal us in," Sarah said, her voice gravelly as she checked the magazine of her sidearm. Seven rounds left. "They don't care about collateral damage anymore. Vance wants that drive, and he’s willing to drop half a city block into the bay to get it."
Leo didn't look back at the avalanche of rubble blocking their retreat. He reached into his hoodie, pulling out a ruggedized transparent tablet. His small thumb swept across the cracked glass, bringing up a glowing wireframe schematic of the city’s forgotten sub-basements. "The main transit tunnel is blocked, but the maintenance shaft behind this wall leads to the old municipal sewer lines built in the 1940s. They aren't on modern civil defense maps."
"Can we cut through?" Sarah asked, shining her weapon-mounted flashlight on the damp brickwork.
"We don't need to cut," Leo replied coldly. He pointed to a rusted iron access hatch hidden behind thick coils of discarded copper wire. "We just need to break the latch."
Before Sarah could respond, a rhythmic thud echoed through the air ducts above them. It was a calculated, heavy sound—tactical boots descending on rappelling lines. The Hounds had bypassed the collapsed garage entrance and were entering through the ventilation shafts.
"Inside. Now!" Sarah grabbed the iron latch, her muscles straining as she torqued the rusted mechanism. With a screech of tearing metal, the hatch yielded. She shoved Leo through the opening, vaulted inside after him, and slammed the heavy iron door shut just as a hail of armor-piercing rounds stitched a line of violent sparks across the outer frame.
They tumbled down a steep concrete slide, plunging into darkness before splashing into knee-deep, stagnant water. The stench of wet moss and old motor oil hit them instantly. Leo regained his footing without a sound, his night-vision visor illuminating the cavernous drainage cavern stretched out before them.
"They'll have thermal imaging online within two minutes," Sarah warned, wiping water from her eye. "We need to get under the subterranean river where the heat signatures distort."
"They won't be looking for heat," Leo said, looking down at his tablet as green rows of code cascaded down the screen. "They're tracking the bio-frequency of the drive. The moment I booted this tablet, we lit up like a flare on Vance’s radar."
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Sarah grabbed his arm, her grip tightening. "Then shut it down!"
"I can't," Leo met her gaze, his icy blue eyes unblinking in the gloom. "If I shut it down, the encryption key wipes itself permanently. The data on this drive is the only reason my mother is still breathing."
