Forty minutes.
In forty minutes, Vance's welding team in District Two could seal three sub-floor vault access points. In forty minutes, the secondary copper taps feeding the District Two medical bay could be cut clean and the stubs ground down to raw pipe. In forty minutes, the paperwork trail connecting the District Two facility to the network's physical infrastructure could be reduced to a collection of empty rooms and legitimate decommissioned equipment.
Forty minutes was enough. Barely. But enough.
Junction seven came into view through the amber smog, a concrete plinth standing at the point where the single track split into two, the left branch running straight toward the eastern corridor and the right branch curving away into the freight yard loop. The switching lever was a heavy iron bar, painted in alternating bands of black and yellow that had faded to a uniform rust brown decades ago.
The lever was set to the left. Direct route. Eastern corridor.
Carver stopped at the plinth. He set his toolkit down on the concrete, unclipped the monkey wrench from his belt, and crouched to examine the switching mechanism at the base of the lever. The mechanism was a simple iron cam assembly, a century-old design that required no power, no network connection, and no authorization code to operate. It responded to physical force and nothing else.
He looked at the cam assembly for approximately four seconds.
Then he reached into his toolkit and removed a short section of iron pipe and a handful of zinc-alloy shims, the kind of components that existed in every maintenance worker's toolkit in the lower districts and attracted no particular attention from anyone.
He did not throw the switch. Throwing the switch would be visible, logged by the line's manual observation system, and reversible by any clerk who noticed the deviation before their train reached the junction.
Instead, he wedged the iron pipe section behind the cam assembly with two of the zinc shims, creating a physical resistance that would allow the lever to move under light pressure, the kind of pressure produced by the automated pre-journey switch check that the legacy line's system ran before each scheduled departure, but would bind and stall under the heavier load of an actual routing commitment.
To the automated check, the junction would read as set to the left. Clear for the direct route.
When the clerk train's front wheels hit the junction and the routing committed to the physical track, the cam would bind. The train's own momentum would push the lever through the resistance, but not to the left. To the right. Into the freight yard loop.
The train would reroute itself.
No manual intervention at the moment of routing. No visible tampering at the junction. Just a maintenance component that had been in place long enough to acquire a patina of rust and the general appearance of something that had always been there.
Carver stood up, replaced the monkey wrench in his belt, and picked up his toolkit.
He walked back the way he had come, his boots steady on the cracked concrete of the maintenance walkway. Behind him, junction seven sat in the amber smog, its lever set to the left, its cam assembly carrying a three-centimeter section of iron pipe and two zinc shims that together weighed less than a full coffee mug.
He did not look back at it.
Above the District Two sub-floor vault, Vance's welding team was already cutting.
The torch light threw sharp, blue-white shadows across the concrete ceiling as the first copper tap came free of its housing with a sound like a clean fracture. The welder — a woman named Petra who had been with the network for six years — caught the severed pipe section before it could hit the floor and passed it to the worker behind her, who slid it into a canvas bag without breaking rhythm.
They were working without speaking. The vault was thirty meters below street level, insulated from the corporate monitoring grid by the same three feet of lead-lined aggregate that had protected the water treatment plant. But sound traveled through concrete in ways that electromagnetic shielding could not prevent, and the district above them was beginning its morning activity.
Twelve taps. Four workers. Eleven minutes remaining before the clerk train's scheduled departure from the legacy terminus.
Petra moved to the second tap.
In the laundry wagon, Leo kept his left eye closed.
The wagon was a converted freight flat, a long, low platform piled with canvas-wrapped bales of dry wool that smelled of lanolin and machine oil. Leo lay in the hollow Ren had carved between two of the largest bales, the gray linen from the facility tucked around him, the technician's goggles Carver had pressed into his palm now covering his right eye, where the dead overlay might catch the light.
The wagon moved at the slow, grinding pace of low-tier freight, twelve kilometers per hour on tracks that had not been leveled since the centralization. Every joint in the rail sent a jolt through the platform that traveled directly into Leo's spine and from there into the damaged neural architecture of his right shoulder.
He did not make a sound.
He was calculating. Not the immediate logistics; Ren was handling those, seated at the front of the platform with a clipboard of laundry manifests and the entirely convincing appearance of a collective supervisor doing a routine delivery run. Leo was thinking about the staging bay on Level 82.
Carver's files. Eight months of handwritten maintenance records. The parallel insulation reports. The Tuesday schedule gaps. All of it in a cabinet under Carver's name in a staging bay that Lucian's forensic team would reach the moment the industrial grace period expired.
Solis had Carver's badge. Solis knew the staging bay layout. But Solis was a collective worker whose primary skill set was industrial laundry management and pressure gauge calibration. Walking into a corporate tower maintenance bay and removing physical files from a supervisor's cabinet without triggering a security flag required a specific kind of composure, the kind built over years of operating inside institutional spaces while carrying a secret.
Leo thought about this for the length of three track joints.
Then he opened his left eye and looked at the underside of the wool bales above him.
"Ren," he said, his voice barely carrying over the grinding of the wheels.
She turned from the front of the platform without lifting the clipboard. "Don't talk. The checkpoint is four hundred meters."
"After the checkpoint," Leo said. "I need to tell you something about Solis."
Ren said nothing. She turned back to the manifest. The checkpoint barrier came into view through the gap between two wool bales, a steel gate manned by two security droids running standard freight registration protocols.
Leo closed his eyes again.
The wagon rolled toward the gate at twelve kilometers per hour, carrying its wool and its secrets and its quietly calculating cargo through the amber morning of the eastern district, while thirty floors above and forty kilometers away, the ground continued to shift in ways that the tower's monitoring systems had not yet been designed to measure.
At Junction Seven, the clerk train departed the legacy terminus at 09:47.
Its automated pre-journey switch check ran at 09:44, reading junction seven as set to the left. Clear for the direct route. The report logged cleanly in the legacy manifest system and was filed by a human administrative clerk who noted nothing unusual and moved on to the next item in the morning's paperwork queue.
The train reached junction seven at 09:52.
The front wheels hit split and lit, and the routing committed.
The assembly is bound.
The lever moved right.
The train entered the freight yard loop at standard speed, its momentum carrying it smoothly around the long southern curve without any mechanical distress that would prompt the driver to stop and investigate. The deviation would not register as an error in the legacy manifest system until the train failed to arrive at its first scheduled stop, a failure that would require a manual report, a manual investigation, and a manual rerouting authorization before the journey could continue.
The driver filed the delay report at 10:11.
The manual investigation was authorized at 10:34.
The rerouting took until 10:58.
By the time the clerk train was back on the direct route and moving toward District Two, Petra's team had been out of the sub-floor vault for twenty-two minutes. The copper stubs were ground clean. The canvas bags were in the back of a municipal waste collection vehicle heading north. The vault contained a decommissioned water pump, three corroded pressure gauges, and approximately forty years of undisturbed concrete dust.
Forty-seven minutes.
Carver had needed forty. He had given Vance's team forty-seven.
He was back in the laundry collective's basement when the boiler monitor's steel pin dropped a second time, the pre-arranged signal from the District Two contact confirming the vault was clear.
He stood in front of the cast-iron housing and looked at the pin behind the glass viewport for a long moment.
Then he unhooked the monkey wrench from his belt, set it down on the concrete floor beside the boiler monitor, and sat down on the iron maintenance bench against the wall.
The second phase had not finished moving. There were four more districts. Four more sets of facilities to dissolve and scatter and rebuild in configurations that Lucian's paper audit trail could not follow. There were forty minutes here and thirty-six hours there and a thousand small, physical interventions between now and the point where the network would be dispersed enough to survive a full legacy paper sweep.
But District Two was clear.
Carver leaned his head back against the cold concrete wall and closed his eyes for the first time in twenty-six hours.
He did not sleep. He simply stopped, the way machinery stops between cycles, completely, without transition, conserving everything for what came next.
The ground was still moving.
He was going to need the energy.