Chapter 7 - The Twelve-Hour Siege

We climbed down into the pitch-black dampness of the underground utility tunnels. The sound of running water and distant subway cars echoed through the concrete pipes. Nathaniel led the way with a small tactical flashlight, his gun drawn, while my mother held my hand so tightly my fingers went numb.
"Where does this lead?" Sarah asked, her voice echoing in the gloom.
"To the primary server sub-vault beneath Graves Energy Tower," Nathaniel said. "It’s the most heavily armored bunker in the state. Once we get inside, I can upload the corporate cryptographic keys to the federal network. It will strip Knox and his Syndicate of their legal power and expose their illegal land seizures."
"And if we don't reach it before midnight?" I asked, remembering what Clara had said.
Nathaniel paused, glancing at his silver pocket watch. "At midnight, Ruby turns twelve. Under the old Vance charter, if the heir isn't officially registered at the central server terminal by her twelfth birthday, the corporate system automatically considers her deceased. Control of the entire energy grid transfers to Knox's board permanently."
"What time is it now?" Sarah asked.
"10:45 PM," Nathaniel replied. "We have seventy-five minutes."
We hurried through the labyrinth of underground pipes. The air grew colder, smelling of ozone and wet electricity. After twenty minutes of fast walking, the narrow brick tunnel opened up into a massive, steel-reinforced subterranean cavern.
In the center stood a massive black glass cube—the subterranean core of Graves Tower.
"There it is," Nathaniel said, breathing a sigh of relief. "The Vault."
Suddenly, floodlights snapped on around the cavern, blinding us with searing white light.
"Did you really think I wouldn't anticipate your little rabbit hole, Nathaniel?" a voice boomed over the cavern's intercom.
Standing on the elevated catwalk right above the Vault's main entrance was Knox. Next to him were eight heavy mercenaries armed with automatic rifles, pointing their barrels directly down at us.
And standing right behind Knox, holding a black leather briefcase, was someone I never expected to see.
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It was my mother's brother—my Uncle Julian, whom my mother had told me died ten years ago.
"Hello, Sarah," Julian said with a chilling, smooth smile. "It's been a long time."