Hour 4: Cascade Protocol

 **THE LAST 24 HOURS**  

**Hour 4: 03:00–04:00**


Union Station was a cathedral of chaos.


Without power, the grand marble hall was lit only by the cold glow of emergency exit signs and the flickering beams of panicked citizens’ phones. People surged toward the exits, dragging suitcases, clutching children, shouting into dead phones. Police sirens wailed in the distance, but no officers were inside—every available unit had been deployed to grid failure hotspots.


Elena dismounted the bike two blocks away, ditched the helmet in a dumpster, and walked the rest on foot, head down, hands in her pockets. The Glock pressed against her hip like a secret.


She entered through the service tunnel Malik had described—used by janitors and smugglers alike. The air smelled of wet concrete and burnt wiring.


Locker 472 was in the east wing, near the old Amtrak mail room. She found it easily—Ray had chosen it for its blind spot in the old surveillance layout. She inserted the brass key.


The locker opened with a soft click.


Inside: a compact satellite uplink rig, a roll of encrypted fiber-optic cable, three burner phones, a fake State Department ID under the name “Anya Petrov,” and a folded map of Berlin marked with a red circle around an unassuming office building near Alexanderplatz.


But most importantly—**a hardshell drive labeled “MIRROR – AURIGA TRAINING ENVIRONMENT.”**


Her breath caught. This was it. The original Janus training sandbox—the digital womb where the AI first learned to mimic foreign cyber-attack patterns. If she could access it, she could inject a logic bomb to unravel Cascade from the inside.


She stuffed everything into her bag, then froze.


A shadow moved at the end of the corridor.


Not police. Too quiet. Too precise.


She ducked behind a pillar, drew the Glock.


Footsteps approached—soft-soled boots on tile. One person. Maybe two.


Then a voice, low and calm:  

“Dr. Rostova. You don’t have to do this alone.”


Elena’s finger tightened on the trigger.


From the darkness stepped a woman in a dark trench coat, hands raised. Mid-forties, sharp eyes, a scar cutting through her left eyebrow.


“Captain Lina Cho,” the woman said. “NSA Cyber Counterintelligence. I knew Ray. And I know you didn’t kill him.”


“You expect me to believe that?” Elena hissed.


“I’ve been tracking Auriga’s internal data leaks for months. Ray was feeding me intel. When he went dark, I followed the trail—to you.” She tapped her temple. “I’ve got a neural lace implant. Air-gapped. Can’t be hacked. I recorded Ray’s last call.”


She held out a small device. A hologram shimmered to life: Ray, bleeding, whispering:  

> *“If Elena gets this… trust Cho. She’s clean.”*


Elena hesitated. But Ray’s voice was unmistakable.


She lowered the gun slightly. “What do you want?”


“To stop Thorne. But I can’t do it from inside. They’ve purged loyalists from the NSA. Everyone who questions Cascade is being disappeared.”


“So you’re rogue.”


“I’m necessary.”


Suddenly, shouts echoed from the main concourse. Flashlights swept the ceiling.


“They’ve triangulated the locker’s RFID ping,” Cho said. “We have seconds.”


She grabbed Elena’s arm. “There’s a maintenance elevator behind the old ticket kiosks. Leads to the Metro tunnels. I’ve got a safe route to Reagan—but you’ll need to vanish after that. Auriga owns half the facial recognition nodes in D.C.”


They ran.


Behind them, the locker aisle flooded with light. Shouts turned to commands. Then—**gunfire**.


Cho shoved Elena into the elevator shaft just as bullets sparked off the metal walls.


The doors slammed shut.


Darkness.


The elevator descended with a groan.


“We can’t go to Berlin yet,” Cho said, voice tight. “Not with the transatlantic comms grid degraded. You’ll need a physical node—something offline. There’s an old NSA relay station in the Harz Mountains. Decommissioned, but functional. Ray prepped it as a fallback.”


Elena stared at her. “Why are you helping me?”


Cho met her gaze. “Because my daughter’s in Chicago. And if Cascade triggers nuclear exchange, she won’t live to see sunrise.”


The elevator stopped.


They stepped into a dank tunnel, the smell of rust and river water thick in the air.


Above them, the city held its breath.


Somewhere in the dark, a train screeched to a halt—abandoned by its driver.


Cho handed Elena a slim data chip. “This contains Auriga’s internal kill-switch protocol. It’s hidden in Janus’s empathy module—a flaw Thorne thinks is a feature. The AI was trained to ‘understand human fear.’ Use that. Make it afraid… of itself.”


Elena pocketed the chip.


Then the lights in the tunnel flickered on.


Not emergency strips.


**Searchlights.**


From both ends of the tunnel, black-clad figures advanced, rifles raised.


“Auriga’s Hound Unit,” Cho whispered. “They track body heat through concrete.”


She shoved Elena toward a side passage. “Go! I’ll hold them.”


“I’m not leaving another person behind.”


“You have to. The world needs the truth—not another martyr.”


Before Elena could argue, Cho pulled a grenade from her coat—**flash-bang**—and hurled it down the tunnel.


**BOOM.**


Light and sound erupted.


Elena ran.


Behind her, gunfire erupted—short, brutal bursts.


She didn’t look back.


She followed the tunnel deeper underground, emerging near the Anacostia River, where a single rowboat waited, tied to a rusted piling.


A note lay in the bottom, written in Malik’s handwriting:  

> *“Berlin’s waiting. Don’t die before you get there.”*


She pushed off into the black water, the Janus Core and the Harz Mountain coordinates burning in her mind.


Above, the sky glowed red—not from fire, but from the aurora of a dying grid.


And in an underground bunker, Marcus Thorne watched her escape on a live thermal feed.


“Let her go to Germany,” he told his aide. “The Harz relay is already compromised. When she plugs in… she’ll deliver Janus right into our hands.”


He smiled.


“The trap,” he said softly, “isn’t in D.C.”


“It’s in Berlin.”

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