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.

Dawn broke over the Blue Ridge Mountains not with light, but with a cold, pale slate-gray that washed the color out of the world.

The airfield was an ocean of revolving emergency strobes. More than thirty black Suburbans, marked with federal plates and Department of Justice seals, had cordoned off the perimeter. A mobile surgical unit had already stabilized Harold and whisked Campbell away in heavy iron shackles, bound for a secure medical holding cell at Walter Reed under twenty-four-hour armed guard.

The fire from the helicopter had been reduced to a steaming heap of black magnesium bones.

I was sitting on the tailgate of an unmarked federal ambulance, a heavy gray wool blanket wrapped around my shoulders, while a young navy corpsman carefully finished stitching the bullet graze on my shoulder.

Rex lay curled at my feet, his head resting squarely on the toes of my boots. A veterinarian attached to the federal tactical team had spent two hours cleaning his lacerations, patching the tears in his shoulder, and pumping him full of antibiotics and fluids. The dog looked exhausted down to the marrow of his bones, but his eyes were clear, bright, and calm.

For the first time since my father died, Rex was truly asleep. His paws twitched occasionally—chasing rabbits through the safe, sunny pastures of an old man's memory, far away from the mud of Da Nang and the concrete vaults of Project Chimera.

"Mr. Thomas," a quiet, dry voice spoke from the mist.

I looked up. A tall man in a dark charcoal trench coat stood three feet away, his hands buried deep in his pockets. He had silver hair cropped in a rigid military cut, steel-rimmed glasses, and an ID badge clipped to his lapel that bore no name—only a seven-digit serial number and the seal of the Department of the Army’s Special Operations Command.

"The federal prosecutors have the files, son," the man said, his voice flat, devoid of emotion. "Campbell won't survive the preliminary hearing. Blackwood Global’s domestic assets were frozen thirty minutes ago by executive order. Your father's record has been fully restored. His Congressional Medal of Honor package is being forwarded to the White House for signature on Monday."

I let out a long, ragged breath, the tension of the last three days finally leaving my body. "Thank you."

The man didn't smile. He looked down at Rex, his eyes narrowing slightly behind his lenses.

"You did good, kid," the man continued, taking a slow step closer. "Thomas would have been proud. You finished his mission. You brought the files home."

He reached into his pocket and pulled out a small, sealed brown envelope, holding it out to me.

"What is this?" I asked, my fingers hesitating against the rough paper.

"It was found in Campbell’s personal safe at the Richmond headquarters," the agent said quietly. "It’s a field report from the Central Highlands. March 14, 1971. The day your father's unit was ambushed at Fire support Base Mary Ann."

I took the envelope, the paper cold against my fingers. "My father told me about that day. He said Rex saved him from a mortar pit."

"Rex did save him," the man said, his voice dropping into a register that made the hairs on the back of my neck stand straight up. "But look at the serial number on that intake manifest, son."

My hands began to tremble. I tore the corner of the envelope open, pulling out the yellowed, water-damaged carbon copy of the MACV-SOG canine transfer form.

At the top was the name: *REX.*

Breed: *German Shepherd Dog.*

Handler: *Sergeant Thomas Donald.*

Date of Birth: *February 1968.*

I looked from the paper down to the dog sleeping peacefully on my boots.

A dog born in 1968 would be fifty-six years old today.

Biologically impossible. A large shepherd rarely lives past twelve.

My breath caught in my throat like a fist of ice. "What... what is this? This isn't him. This can't be him."

The man in the trench coat leaned down, until his face was inches from mine, his eyes completely hollow.

"The dog in Vietnam died in 1974, Donald," the man whispered. "The dog at your feet didn't come from Saigon. He was decanted six years ago in the Blackwood laboratory beneath this tarmac. He was cloned from the original Rex's preserved somatic tissue. Your father didn't take him home to protect him. Your father broke into the facility and stole him to stop what Campbell was building next."

The agent reached slowly into his trench coat.

Rex’s ears suddenly pinned flat against his skull. The dog didn't wake up slowly—his eyes snapped open with that same terrifying, mechanical blackness, every muscle in his body locking instantly into place.

The agent didn't pull a gun.

He pulled a small, silver pocket watch, popped the latch, and held it out toward the dog. Inside the watch face, a miniature digital display was pulsing with a countdown timer that had four minutes remaining.

"Thomas didn't program him to go home, Donald," the agent whispered with a cold, terrifying smile that matched Campbell’s. "Thomas was the architect. Campbell was just the money. The files you just transmitted to the Pentagon didn't expose the program..."

The man leaned down and shaped four silent words with his lips—words I had never seen before.

Rex stood up. Slowly, terrifyingly, he turned his head away from the agent, his amber eyes completely swallowed by dark, dilated venom, his fangs baring as he locked his gaze onto the center of my chest.