He looked down at the flag in his lap, then up at the dog, and his mouth moved like he was saying something I couldn't hear.

The sound that left Rex’s throat wasn't the guttural bark of a territorial German Shepherd; it was a rhythmic, mechanized rasp, like grease-slicked gears grinding against raw bone. His pupils had vanished entirely, dilated into twin voids of abyssal black that swallowed the amber irises I had known since childhood. Every tendon in his neck twitched under the scarred fur, straining against invisible tethers as the muscles in his haunches coiled like loaded leaf springs.

The cold morning mist hanging over the broken tarmac seemed to freeze in place. Across the jagged Appalachian ridgeline, the chorus of distant howls answered the silver pocket watch—fifty distinct voices, layered in chilling, unison dissonance, echoing down the hollows like a siren song from the grave.

"Move and your throat stays on this concrete, Donald," the man in the trench coat warned softly. He stood three paces back, his hand keeping the pocket watch exposed, the digital LED pulsing down: *03:42... 03:41...* "Your father spent thirty years refining the neuromuscular link. A standard dog reacts to pheromones and vocal tone. A Chimera asset responds directly to compressed auditory triggers—frequencies below human hearing that fry the animal's pain receptors and unleash the primitive predatory drive."

"He wouldn't," I choked out, my boots rooted to the asphalt. My hand trembled near my hip, fingertips brushing against the damp folds of the burial flag still tucked under my jacket. "My father was a soldier. He loved this dog."

"Your father was a bio-behavioral engineer who watched an entire platoon get shredded in the Ia Drang Valley because meat-and-bone scouts couldn't detect claymores," the agent retorted, his voice void of any human warmth. "He didn't want loyal pets. He wanted living mines that could hunt in the dark. Rex isn't your pet, Donald. He's Unit 01. The master key."

Rex lowered his head until his jaw hovered three inches from my chest. Hot, sour air washed against my chin—foul with the chemical scent of synthetic adrenaline. A low, sub-audible vibration hummed through the soles of my boots, rattling my ribcage.

*He's going to tear my throat out,* my mind screamed. Every survival instinct urged me to draw the sidearm, to put a bullet between those unblinking black eyes before the spring snapped. But as I looked into that terrifying, mutated face, I saw the faint, crooked white scar above his right brow—the exact scar Thomas had stitched closed with fishing line on our kitchen table when I was twelve.

*Thomas didn't bring him home to protect him. He stole him.*

"Rex," I whispered, keeping my vocal cords at the absolute lowest register. "Easy, boy. Stand down."

The pocket watch beeped—a sharp, piercing chime.

The trench-coat agent raised his lip in a triumphant sneer. "Terminate Asset Zero."