Chapter 7 - THE ACOUSTIC TRIGGER
Three minutes.
Avery stared at the digital timer, her heart threatening to beat out of her chest. The panic room was an acoustic dead zone—reinforced steel and heavy foam padding. No sound in, no sound out.
She crawled toward the bomb, her hands shaking violently. It was a complex, military-grade device. Red wires, blue wires, secondary triggers. If she pulled the wrong one, she was dead.
She looked at the detonator closely. It wasn't a standard electrical relay. Attached to the blasting cap was a small, delicate glass tube containing a thin metal filament.
An acoustic trigger.
The bomb wasn't designed to be disarmed by cutting a wire. It was designed to detonate if the metal filament vibrated at a specific resonant frequency. If she touched it wrong, if the door was breached with explosives, or if she made the wrong noise, the vibration would shatter the filament and complete the circuit.
Two minutes.
Upstairs, the firefight was brutal.
Lucius fought with the ruthless, terrifying efficiency of a man who had nothing left to lose. He and Dante neutralized the tactical squad in the hallway, leaving a trail of bodies.
Lucius didn't care about Marcus anymore. He cared about the voice he had heard scream over the comms.
"Avery!" Lucius roared into his headset. Static.
He sprinted down the service stairwell, Dante covering his six. They found the server room empty, the chair overturned.
Lucius saw the heavy steel door of the panic room down the hall.
He ran to it, grabbing the handle. Locked. He stepped back, raising his gun to shoot the electronic keypad.
Inside the soundproof room, Avery saw the handle jiggle. She knew it was Lucius. And she knew if he shot the lock, the acoustic shockwave of the gunshot against the steel door would vibrate the filament and detonate the bomb.
She had no way to warn him. No comms. No sound.
Answer One, Open Two.
How do you communicate through a soundproof door?
Avery looked around the sterile room. Nothing. Then, she looked at the heavy foam acoustic padding lining the walls.
One minute.
Outside, Lucius aimed his weapon at the keypad.
Suddenly, he felt a vibration under his expensive leather shoes.
He paused, looking down.
The floor was vibrating in a specific, rhythmic pattern.
Thump... Thump... Thump-Thump-Thump.
Dante frowned. "What is that?"
Lucius lowered his gun, his eyes wide. He remembered the little girl in his living room. He remembered Avery’s words. It keeps the heart steady when the hands get confused.
"A metronome," Lucius breathed.
Inside the room, Avery was using the heavy, steel casing of the bomb’s battery pack to rhythmically slam against the steel floor joists beneath the foam padding, transferring kinetic energy instead of acoustic sound.
Lucius pressed his hand flat against the steel door. He could feel the desperate rhythm.
She was warning him. The door couldn't be breached with force.
"Dante," Lucius barked. "The master override for the magnetic locks. It’s in the server room console. Find it. Now."
Dante sprinted back to the server room, his hands flying over the keyboard Avery had left behind.
Thirty seconds.
Avery sat on the floor, staring at the bomb. The filament was trembling slightly from her own kinetic pounding. She stopped. She closed her eyes. She thought of the life she was supposed to have, the thesis she was supposed to write.
Then, she thought of Lucius’s dark, protective eyes.
Ten seconds.
A heavy, metallic CLACK echoed through the steel.
The door violently swung open.
Lucius Vance stood in the doorway. He didn't hesitate. He dove into the room, grabbed Avery by the waist, and practically threw her out into the hallway just as the timer hit zero.
But the explosion never came.
Avery hit the floor, gasping for air, looking back into the room.
The timer read 00:00. But the filament hadn't broken.
Lucius stood over the bomb. He looked down at it, then turned his dark gaze to the hallway, where a woman was standing.
It was Seraphina.
She looked horrific. Half her face was covered in terrible, blistering chemical burns from the neurotoxin. She was holding a remote control detonator, her finger resting on the kill switch.
The reversal was absolute. Seraphina hadn’t been a victim. She was the one who wired the bomb.
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"I traded my face to make it look convincing, Lucius," Seraphina rasped, her voice dripping with venom. "Marcus promised me half the empire if I played the victim. But he betrayed me. He sent the squad to kill us all."
She raised the remote. "I stopped the timer. But I can start it again. Unless you give me the ledger, and let me walk."
