Chapter 3 - The Escape Below

Chaos erupted in the grand lobby. The wealthy guests gasped and scattered, champagne glasses shattering against the marble as the bank's heavy steel shutters began to violently slam down over the towering windows. Alarms blared, bathing the gold chandeliers in a harsh, pulsing red emergency light.
Lily flinched, clutching the silver music box tightly to her chest. The haunting lullaby was drowned out by the mechanical roar of the lockdown. She looked back toward the entrance of the vault, her small chest heaving with rapid, terrified breaths. Three armed guards in tactical gear were sprinting across the lobby, directly toward her.
"Come here, kid," a gruff voice commanded.
Marcus stepped into the vault, slamming the massive brass-and-steel door shut behind him with a deafening CLANG. He spun the internal locking wheel, sealing them inside and cutting off Arthur’s furious screams. The sudden silence inside the vault was heavy and absolute, save for the soft ticking of the music box.
"Who are you?" Lily whispered, stepping back, her bare feet pressing against cool gold bars.
"A man who owed your father his life," Marcus said softly, crouching down to her eye level. The harsh lines of his face softened. He looked at the music box in her hands. "I haven't heard that song since the night the Sterling mansion burned down. They told us the entire family perished. How did you survive?"
"I don't know," Lily said, her voice trembling. "A lady at the orphanage gave me this dress. She said when I turned eight, the dress would lead me home. Today is my birthday. I just... walked here. The building pulled me."
Marcus swallowed hard. "Arthur Vance was your father's business partner. He took over the bank when your parents died. If he gets his hands on you, little bird, you won't live to see your ninth birthday."
A heavy, metallic thud echoed through the vault door. They were trying to drill through the locking mechanism.
"We can't stay here," Lily said, her eyes welling with tears. "I'm scared."
"Don't be," Marcus said, his voice steady. He walked to the back wall of the vault, which was lined with hundreds of safe deposit boxes. He pressed his hand against a seemingly blank panel of steel. "Your father didn't just build a vault to keep people out. He built it to keep his family safe."
Marcus pushed a sequence of hidden buttons. The wall hissed, and a heavy section of the steel slid sideways, revealing a dark, narrow tunnel smelling of damp earth and old copper. It was the original pneumatic tube maintenance shaft from the 1920s, long forgotten by the modern board of directors.
"Go," Marcus urged, lifting her effortlessly and setting her inside the dark tunnel. "Follow the draft. It leads to the subway tunnels. I’ll hold them off and cover our tracks."
"Will you come find me?" Lily asked, her small hands gripping the edge of the steel.
Marcus smiled, a sad, determined expression. "I'll find you, heiress. Now run."
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As the vault door behind them began to groan under the pressure of industrial drills, Lily turned and ran into the darkness, the silver music box held tightly against her beating heart.
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