"Jesus," Frank whispered. "Marcus, I can't cancel a corporate executive waiver from this desk. Vance outranks the division superintendent. If I refuse to dispatch Grinder 109, his regional compliance officer will just walk into the tower, relieve me of duty, and pull the signal lever himself."
"You don't cancel it," I said, the road narrowing to a single tire track between snowbanks near the Mississippi River crossing. "You stall it. Log a false signal shunt on the approach circuit. Tell the grinder foreman the track circuit is showing an open interlock and you can't drop the derailer until a signal maintainer checks the voltage. Give me two hours."
"I can give you ninety minutes, Marcus, and that’s stretching my pension to the absolute snapping point," Frank said, his voice dropping to a gravelly murmur. "After that, Vance’s people will override the interlock manually. But you need to know something else. Deputy Kallen didn't just file a welfare check on your house. Ten minutes ago, the Iowa State Patrol district desk in Des Moines entered a statewide BOLO on your license plate. Stolen company vehicle and grand larceny of proprietary testing hardware. Vance isn't just trying to grind the switch, Marcus. He's got the state police looking to box you in before you ever reach Dallas County."
The line clicked off.
Cold air leaked through the driver’s side door seal, chilling the sweat on the back of my neck. If I stayed on I-80, the highway cameras at the Quad Cities toll plaza would flag my rental car’s registration within forty minutes. If I pulled off into a rest area to hide, Grinder 109 would chew through the manganese switch frog at MP 342, the ethanol unit train would take the green signal at four in the morning, and sixty cars of volatile fuel would derail into the river bottom while I sat in a county holding cell with an empty Pelican case.
I took the exit for Davenport, sliding hard on the slush-covered ramp, and pulled into the dark lot behind a closed farm-supply warehouse.
Sitting in the cold glow of the cabin light, I opened the Pelican case, pulled the two micro-SD cards from the spectrometer’s battery housing, and slid the first card into my field laptop. The screen populated with high-resolution metallographic scans: crisp cross-sections showing the web of frog 14 spiderwebbed with crystalline fatigue cracks, filled with low-density polymer resin that registered bright orange against the dark manganese matrix. Beside each image was the certified serial number of the casting and Vance’s personal maintenance sign-off code.
I had one move that could stop the grinder, but it was irreversible.
Under the Federal Railroad Safety Act, an inspector could bypass corporate management and upload raw non-destructive testing data directly to the National Transportation Safety Board’s emergency investigative docket. But doing so without corporate countersignature was an immediate termination of my professional certification, triggered an automatic corporate lawsuit for trade-secret exposure, and instantly broadcast my digital IP address and GPS coordinates to every regional rail enforcement monitor in three states.
It would burn my career to ash before sunrise. But once those scans hit the federal docket, the safety board's duty officer in Washington would issue a mandatory federal emergency stop order on the entire Des Moines rail corridor, freezing every track in place by federal law.
My finger hovered over the upload key. I thought of Toby shivering in Miller's tack room, his boots lost in the frozen ditch, and the sixty black tank cars rumbling toward Milepost 342 in the dark.
I hit the key.
The progress bar crawled across the screen—forty percent, seventy percent, complete. A green confirmation banner flashed: Docket Entry Confirmed. Federal Preservation Hold Requested.
Before I could close the laptop, a pair of high-intensity halogen headlights swung around the warehouse corner, cutting through the swirling snow and locking directly onto my windshield. The dark cruiser idled ten yards away, its rooftop lightbar dark, its engine rumbling like a low growl through the frozen slush as the driver’s door swung open into the wind.
CHAPTER 3: The Switch They Could Not Grind
The beam from the cruiser’s spotlight struck the driver’s side mirror of the Subaru, blasting raw halogen glare across the steering wheel and pinning me to the headrest. Through the blurred, ice-crusted side window, I watched an Iowa State Trooper step out into the swirling sleet, his campaign hat pulled low against the gusts, his right hand resting flat against the retention holster on his hip. He didn't approach the window directly. He moved along the rear quarter panel, checking the Illinois rental plates, his flashlight beam slicing through the rear cargo glass to illuminate the black Pelican case resting on the folded seat.
I kept both hands flat on the top of the steering wheel, fingers spread wide against the cold vinyl.
"Driver, roll down the window two inches and keep your hands where I can see them," the trooper called out, his voice sharp and level above the wind.
I lowered the glass. The damp subzero air poured in, smelling of diesel exhaust and wet gravel. "Officer, my hands are on the wheel. My registration and rental agreement are on the passenger seat. I'm reaching down only to turn on the interior dome light."