Jack, Ginger, and Dom infiltrate Thunder Hill

Jack Twist, Ginger Weiss, and Dom Corvaisis infiltrate Thunder Hill in a blizzard, turning a seemingly impassable perimeter into a problem of observation, equipment, and nerve. Their entry depends on reading the facility’s security before touching it: Jack detects a buried pressure alarm, then builds a rope crossing to defeat it. At the entrance, a covert electronic tool opens the way inside—but leaves the three of them exposed to whatever lies beyond the first door.

The Perimeter and Its Hidden Alarm

The three squeeze through a crawl-through Jack has cut in the chain-link fence, pushing their equipment-filled rucksacks ahead of them. Once inside the grounds, they keep close to the fence while Jack surveys the landscape with a Star Tron night-vision device. He spots two camera poles covering the stretch of perimeter from different angles. Snow appears to have filmed both lenses, although the storm makes certainty impossible; he finds no sign of photoelectric alarms across the meadow.

Jack then uses a wallet-sized, non-contact voltage detector, an unusually sophisticated instrument that can register current in a line without measuring its strength. Crouched and holding it roughly two feet above the snow, he advances into the meadow. The detector begins to beep and flash amber after only about three yards. Jack stops at once and calls Ginger and Dom over rather than risk another step.

He explains that the signal comes from a pressure-sensitive grid buried an inch or two below the surface, beginning about ten feet inside the fence. Its thin plastic-sealed wires carry a low-voltage current; sufficient localized weight breaks connections and interrupts the current. Snow does not set it off because its weight is distributed evenly, but a footstep would. The grid is at least eight or ten feet wide—too broad to jump, even for someone who has detected it.

Jack’s Rope Bridge

Jack proposes that they follow the fence along the safe strip between it and the alarm until they find a substantial tree beyond the grid. The plan depends on finding a suitable anchor, not on forcing their way through the alarm. They find one only three hundred yards down the slope: a pine at least eighty feet tall, standing thirty or thirty-five feet from the fence. Its broad, separated limbs offer a branch that can serve as the far support for a rope crossing.

From a rucksack, Jack takes a four-pronged grappling hook attached to a hundred feet of five-sixteenths-inch nylon climbing rope. The hook is one of the items Ginger and Faye bought in Elko earlier that day. Jack checks its knot, arranges the rope so it can pay out, and swings the hook into the storm. His first cast falls about three feet short. He retrieves it through the snow, working it loose when it catches; the rope is light enough that dragging it across the alarm does not trigger the system. Dom coils it as it comes in, helping without being asked.

On the next cast, the hook catches the chosen branch. Jack threads the other end through the chain link around a fence post about seven feet above the ground, wraps it around the post, and pulls the line taut with Ginger and Dom’s help before tying it securely. The result is a rope bridge that rises from about seven feet at the fence to roughly nine feet at the tree across a span of about thirty-five feet. The slight incline makes the crossing harder, but keeps them above the pressure grid.

Jack demonstrates how to cross without touching the ground: he grabs the line, swings his legs over it, locks his ankles on top, and pulls himself forward underneath it. Before reaching the alarm zone, he lets go and drops to the far side. Dom manages to get his legs over after a full minute of effort. Ginger, who is five feet two, needs a boost to reach a proper handhold, but then gets herself onto the rope without further help. The improvised bridge turns their different physical challenges into a workable route across the perimeter.

Crossing the Security Web

Using the rope bridge, the three cross the alarm grid and continue through the electronic security guarding Thunder Hill’s grounds, pausing to use other devices in Jack’s equipment. The account emphasizes the cautious progression: this is not a single leap over the fence or an effortless bypass, but a series of obstacles negotiated without setting off an alarm.

They reach the main entrance, where immense steel blast doors face a cleared, heated road. A smaller door stands to their right. Their tracks in the otherwise smooth snow make delay dangerous: if visitors arrive or guards return from a shift change, the fresh trail could expose them even if they manage to retreat and hide. They therefore have to get inside quickly, while recognizing that the attempt itself may already have left evidence behind.

Jack produces an attaché-sized computer called SLICKS, a device for penetrating electronic locks that is not available to the general public. Ginger knows what it does but does not ask where he obtained it. Dom holds a flashlight on the ten-digit codeboard while Jack probes the lock for the entry sequence. Ginger keeps watch for headlights from the main gate and for a foot patrol across the meadow. The arrangement divides the immediate work: Jack attacks the lock, Dom supplies light, and Ginger watches for discovery.

Inside the First Door

In less than four minutes, compressed air whooshes behind Ginger. The door slides into its recess so suddenly that Dom stumbles back and Jack falls onto his backside. The opening tears the SLICKS probe out of the computer, but no alarm sounds. The breach succeeds at a cost to Jack’s tool: the door is open, while the probe is lost.

Beyond it lies a fluorescent-lit concrete tunnel about twelve feet long and eight or nine feet in diameter, angled left toward another steel door. Jack steps in to inspect it and tells the others to stay where they are. Ginger stands beside Dom, aware that part of their plan is to give themselves up as hostages, yet also aware that instinct might send her running at the first sign of trouble. Dom puts an arm around her, both restraining and reassuring her. Their entry has carried them past the outside defenses, but it has not resolved the danger: at the end of the tunnel, another barrier still separates them from the facility’s interior.