The ground beneath them roared like a wounded leviathan. Professor Phan’s self-destruct system was no mere arrangement of explosives; it was a "Thermal Purification" protocol—designed to incinerate every shred of physical and biological data so that not a single byte of source code could fall into the wrong hands.
White smoke began to curl from the fissures, carrying the acrid scent of chemicals and the finality of an end.
Assistant Lam tightened his grip on the handgun, the muzzle still trained directly on Tham Trach Ngon’s chest. He sneered, though his eyes betrayed a flicker of panic as the island shuddered violently.
"Give me the activation key for the briefcase, now! Otherwise, we all blow to pieces right here!" Lam bellowed.
Trach Ngon, though leaning his entire weight against Ha Chi, maintained a smile that was chillingly calm. He reached into his pocket and withdrew a small, silver memory card.
"Lam, you’ve followed me for ten years, yet you’ve forgotten a fundamental rule of programming," Trach Ngon coughed, a streak of crimson leaking from the corner of his mouth. "Every perfect system must have a 'Backdoor.' The briefcase you’re holding contains no source code. It’s merely a transponder. The real code... resides within my own heartbeat."
Lam froze. "What?"
"My father encrypted it into the stabilization gene sequence I just injected," Trach Ngon said, locking eyes with the traitor. "If my heart stops, that code self-destructs permanently within 60 seconds. You kill me, you lose everything."
While Lam stood stunned, Ha Chi did not waste a single heartbeat. She had surreptitiously executed a command on her tablet, connecting to the helipad’s liquid nitrogen fire suppression system.
Hiss!
A blast of sub-zero vapor erupted, creating a dense wall of freezing fog that cut them off from Assistant Lam.
"Run!" Ha Chi screamed.
She hauled Trach Ngon toward a high-speed motorboat concealed beneath the coral reef behind the pad. Behind them, Lam’s gunfire rang out frantically through the mist, but he had lost his orientation.
The first explosion ripped through the research center. A gargantuan pillar of fire stood erect against the night sky. The shockwave threw them both onto the cold sand. Ha Chi’s ears rang, and her chest tightened from the sudden atmospheric pressure shift.
Gasping for air, Ha Chi scrambled up and used every ounce of her strength to pull Trach Ngon onto the boat. He had slipped into unconsciousness. The wound on his shoulder no longer emitted a blue glow; it bled deep, dark red—the blood of an ordinary human, fragile and precious.
"Trach Ngon! Wake up! You can’t die!" Ha Chi sobbed as she slammed the ignition.
The boat tore across the open sea just as the entire island was consumed by a horrific chain reaction of explosions. From the distance, they saw the silhouettes of Assistant Lam and the mercenary squad swallowed by the towering inferno.
In the vast expanse of the ocean, under the silver moon, Ha Chi knelt beside Trach Ngon. She applied her first-aid knowledge, performing CPR and staunching his bleeding.
"You promised to be my wings..." she whispered, tears streaming onto his pallid face.
Suddenly, Trach Ngon took a sharp, deep breath; his chest began to rise and fall again. His eyes slowly fluttered open, finding Ha Chi’s face blurred by tears. He raised a trembling hand to wipe them away.
"The world... it’s truly painful to see clearly, Ha Chi," he smiled weakly. "But seeing you... makes every bit of pain worth it."
They drifted at sea throughout the night until they were intercepted by an international patrol force—the very ones Ha Chi had covertly signaled with an SOS earlier.
The Tham Group Tower had fallen. Tham Chinh was in custody. Assistant Lam was missing in the explosion. Project "Archangel" was now a legend without an answer, as Trach Ngon chose never to reveal the final code in his blood. He chose to live an ordinary life, with ordinary eyes.
One month later, at a small seaside cottage in Ha Chi’s hometown.
Trach Ngon sat in a wheelchair, his shoulder still bandaged but his complexion much healthier. He watched Ha Chi brew tea—the same green tea she had carried through their arduous journey.
"You still haven't answered me," Trach Ngon said, his gaze now warm and focused. "Why did you choose to save a 'monster'—half-man, half-machine—like me that night?"
Ha Chi set the teacup down and smiled, her eyes radiant in the late afternoon sun. "Because you weren't a monster. You were the only man who could see my soul, even when you couldn't see my face."
Ha Chi stepped into the study and opened her old laptop. She intended to scrub the final traces of the war.
But suddenly, a command prompt window popped up. Lines of green text raced across the screen at a dizzying speed.
Ha Chi froze. The IP address of the incoming message was untraceable. And at the end of the command line was a small icon: A lapel pin of the Tham family.
Assistant Lam was still alive. And the battle to protect Trach Ngon—the man she loved—had only just begun a new, more perilous chapter: The Digital War.