I threw the phone onto the seat, yanked the steering wheel hard to the right, and took the Leesburg Pike exit ramp at sixty miles per hour, the tires screaming across the wet asphalt.
The Escalade lunged across two lanes of traffic behind me, its heavy front brush-guard flashing in my mirror as it followed me into the winding, two-lane rural roads of northern Fairfax County.
***
The dense hardwood forests of Great Falls rose like dark, skeletal sentinels against the overcast sky.
Rain had begun to fall—a fine, freezing drizzle that slickened the winding curves of Georgetown Pike.
I knew these back roads by heart.
I had grown up exploring these limestone ravines with Garrett thirty years ago, when our maternal grandfather, Arthur Mercer Senior, still walked these woods with his brass surveying transit and his leather-bound notebooks.
Two miles north of the village, I killed my headlights, veered off the asphalt, and plunged down an unmarked gravel service road overgrown with weeping willows and wild blackberries.
The sedan’s chassis scraped violently against the crown of the dirt path: *CRUNCH-CLATTER.*
Behind me, the twin halogen high-beams of the Escalade swept past the tree line on the main road, pausing for four seconds before the massive SUV turned onto the gravel trail, its heavy diesel engine rumbling like distant thunder.
At the end of the road sat the rusted, eight-foot chain-link perimeter of **Substation Number Ten**—a decommissioned municipal water intake facility built into the towering limestone bluffs overlooking the Potomac River.
Standing beside the heavy padlock of the double security gates was Garrett.
He was thirty-six years old, six feet tall, broad-shouldered, wearing his stained canvas work chore coat over denim overalls, holding a heavy steel pry-bar in his gloved hands.
Beside him on the gravel sat his battered green municipal service truck, its amber hazard beacon flashing silently.
I slammed on the brakes, the sedan sliding to a halt in the wet leaves six inches from the chain link.
I threw open the door, lunging into the freezing drizzle:
“Garrett!
They’re right behind me!”
Garrett didn’t look panicked.
He shoved the gates wide open, waving my car through with an urgent, rhythmic sweep of his arm:
“Pull inside the retaining wall!
Behind the pump house!”
I sprinted back to the sedan, drove through the gates, and tucked the car into the narrow concrete alcove beneath the massive stone spillway.
Garrett slammed the heavy steel gates shut, wrapped a heavy chain around the posts, and drove a six-inch hardened steel padlock through the links with an authoritative *SNAP*.
A second later, the black Escalade roared into the clearing, its four tires throwing rooster-tails of mud against the chain link as it slid to an aggressive halt five feet from the fence!
The passenger doors flew open.
Four private security contractors from Apex Tactical stepped out into the rain, their tactical vests visible beneath their open overcoats, their handguns holstered in retention rigs at their hips.
The broken-nosed lead investigator—whose corporate credential pinned to his pocket identified him as **Marcus Vance**—strode to the chain link, his face flushed with cold rage:
“Garrett Mercer!”
Vance shouted through the wire: “Open this gate right now!
You are obstructing the execution of a lawful court order issued by the Circuit Court of Fairfax County!”
Garrett planted his steel pry-bar into the mud, crossing his arms over his chest, his jaw set like an anvil:
“You’re trespassing on federal geodetic infrastructure, Vance.
This facility is under the exclusive jurisdiction of the United States Department of the Interior and the Army Corps of Engineers.
Show me a federal warrant signed by a district magistrate, or back your truck out of this hollow before I call the state police to impound it.”
