The footsteps did not resume.
Leo waited at the edge of the emergency light. Behind him, the broken span ended at the lift shaft. Ahead, the passage held whatever the terminal had counted beside him and whatever had just walked away.
He wanted to hear it again. A sound had a direction. Silence left him aiming at the entire dark.
“Do not follow yet,” Gauss said through D-17's radio.
“I wasn't rushing.”
Leo stepped backward. The delivery bag bumped his hip, and the rifle sling tightened across his shoulder; the passage remained still. He took another step, this one sideways, until his boot crossed the edge of the light.
On night deliveries, he had learned to wake cheap motion sensors with an elbow while both hands were full. He raised his free arm now and swept it once through the dark.
The nearest unlit lamp ignored him.
A service light clicked on farther down the passage.
Nothing stood beneath it.
The next lamp woke, then the next. Empty concrete appeared in sections, the brightness traveling away from Leo while he held still.
Each lit section gave him somewhere to aim and took it away before the barrel settled.
“Those are motion sensors?”
“Yes.”
“They're not seeing me.”
“No.”
A footstep sounded beneath the final lamp. The door there stayed shut. No shadow crossed the floor, but the light remained on as though someone had stopped in front of it.
Gauss waited a few seconds before speaking.
“The reading is stable. Follow it. Do not change anything the local system reports until we understand what it is counting.”
Leo lowered his arm. “A reassuringly specific warning.”
“Follow the lights, Leo.”
It almost sounded like a joke. Leo followed the lights.
His breathing had settled after the bridge. The weakness in his legs had not. He kept the rifle lowered and watched the lit floor for dust, a footprint, anything that would let him decide whether the unseen walker had weight. There was only old grit and the marks from his own boots.
The last lamp shone over a gray service door. Leo opened it and found a relay bay no larger than the apartment's kitchen. Blue lines curved across the floor toward a second gray door, stopping at a hand-wide gap. Beside a dead control panel stood a heavy isolation bar.
There was no other exit.
“Before you power it,” Gauss said, “open the relay door.”
Leo tried the second door. It opened onto a shallow recess packed with dead cables. Concrete filled the space behind them.
He pushed two cables aside and rapped his knuckles against the wall. Cold dust clung to his skin. The concrete gave him no hollow answer.
“Solid concrete.”
“Good. Close it.”
Leo looked at the blue lines ending short of the door. “And after the reset?”
“There should be a passage behind it.”
“Where to?”
“Closer to me.”
Leo closed the door without thanking him.
“Before the catastrophe, Meridian had no routes,” Gauss said. “Behind that door were cables. When the break closes, they will be there again.”
Leo rested a hand on the isolation bar. “But while it's open, you choose where the door leads.”
“No. Meridian made the break. The anchors only hold what is already there.”
Leo glanced at the closed door. If Gauss was wrong, he would still have concrete ahead and no bridge behind him.
A hole in the city with a door at either end. Leo had spent years trusting apartment numbers and delivery addresses. Now a door could keep its hinges and lose its address.
“Bring the panel online and raise the isolation bar,” Gauss said. “While it is down, the local anchor will not take commands from the laboratory. When the door unlocks, cross immediately. Do not stop inside.”
Leo pulled at the handle anyway. The bar did not move; the dead panel did not flicker. Gauss neither stopped him nor repeated the order. He simply waited for Leo to discover the lock for himself.
Leo touched the control. The panel woke and identified the local anchor. A pale line searched for a destination, vanished, and started again.
He hauled the isolation bar upward.
A low vibration entered through the soles of his boots. Blue light ran along the floor pattern and stopped at the missing section. For several seconds the pale search line found nothing.
Then a destination record appeared.
The radio at Leo's belt showed the same linked symbol.
“I've seen that before,” he said. “The radio found it before the refuge hatch opened.”
“The far anchor is answering. That signal is the route carrier.”
The narrative has been taken without authorization; if you see it on Amazon, report the incident.
The relay door remained locked.
Leo glanced at it. “Not much of a route.”
“The carrier is only contact between anchors. It can exist before there is a corridor, and after a corridor closes.”
The missing section of blue line flickered but did not fill.
“How many times can this one open?”
“Once. Its reserve should hold long enough for a forward crossing. It will not open a way back.”
Leo looked through the bay's entrance. Beyond the passage, the gap where the bridge and Gauss's machine had fallen still cut off the way back.
“You keep finding doors with only one useful side.”
“Meridian found them first.”
The pale line on the panel steadied. Leo remembered the temporary stairwell on the forty-eighth floor and the white tether pinned across its tiles.
“The GBA anchor caught a break like this after the apartment anomaly collapsed.”
“Yes. The floor returned, and for a few minutes Meridian put it within reach of their anchor. The equipment held what had already opened.”
“The tether told the anchor who belonged to the team.”
Gauss paused. “It identified attached personnel. It could not pull them home or keep the route open.”
Leo lifted D-17's radio from his belt. A scrape crossed the casing where the scout's shaking thumb had missed the transmit control.
“When they cut him loose, the anchor stopped counting him.”
“As attached personnel,” Gauss said. “The route was already failing.”
“Did cutting the line kill him?”
“I do not know.”
“Did they?”
Static breathed between them.
“They knew the tether was trapped,” Gauss said. “They may have believed leaving it attached would endanger everyone still inside. They knew cutting it would remove D-17 from the group record. I do not have enough evidence to tell you which failure reached him first.”
The answer did not clean anyone's hands. At least Gauss had not tried.
Leo remembered the collector light moving beneath D-17's skin. The ruined frame hauling his body upright. The same words forced through him after the man who meant them was gone.
DON'T FOLLOW. DON'T FOLLOW. DON'T FOLLOW.
The radio felt warmer than the room.
The blue gap on the floor closed.
The relay panel chimed.
ROUTE PARTICIPANTS REGISTERED: 1
LOCAL OCCUPANCY DETECTED: 2
PASSAGE AUTHORIZATION SUSPENDED
Two controls appeared beneath the warning.
CORRECT LOCAL COUNT: 1
OPEN FOR DETECTED OCCUPANCY: 2
Leo's thumb hovered between them.
“What does correction actually correct?” he asked.
“Nothing in the room. It orders the anchor to stop waiting after one reading crosses.”
“There is one registered traveler.”
“There are two detected presences. If the unknown reading reaches the far side first, the anchor may decide its single traveler has crossed and close while you are still inside.”
Leo moved his thumb toward CORRECT LOCAL COUNT anyway.
The bedroom voice had followed him through the refuge hatch, if that was what the terminals were counting. It had warned him before Gauss called. It had also borrowed his name, his voice, and the beat his heart was supposed to make first. Opening for two meant taking it closer to the only human who might still become an ally.
Correcting the count might leave it behind.
Or leave him.
“Before these relays, has any system counted two around you?” Gauss asked.
Leo saw the evacuation record from apartment 4812.
TWO PRESENT.
He heard his own voice behind the sealed bedroom door: I never left.
“Nothing I can identify,” Leo said.
“That was not my question.”
“It's the answer you get.”
Gauss let the refusal stand.
A footstep sounded behind the locked relay door.
Leo stared at it. Less than a minute ago, his knuckles had left pale marks in the dust on the concrete beyond it.
He lowered the radio from his ear. The relay's vibration filled the silence, too even to hide a step. Nothing moved on his side of the door. Gauss waited without asking what Leo had remembered.
“If I open for two, can the anchor separate us at the far side?”
“No.”
Leo kept his thumb above the correction control. “Can you?”
“Not without first detecting what the second presence is.”
“So you want it brought to your laboratory.”
“I want you to arrive alive. I will deal with what arrives with you if I can.”
Leo's thumb stopped.
The source line flickered. The low vibration beneath Leo's boots had begun to weaken.
“I can enable either option,” Gauss said. “I will not press it for you.”
Leo looked at CORRECT LOCAL COUNT: 1.
The commander on the forty-eighth floor had given the cutting order twice. D-17 had stopped belonging to the group before Meridian finished deciding what he belonged to instead.
Leo moved his thumb to the second control.
OPEN FOR DETECTED OCCUPANCY: 2
He confirmed it.
The lock withdrew.
Leo opened the gray door.
The cable recess was gone. A clean service corridor continued beyond the threshold, lit by white strips. It reached far past the concrete Leo had touched moments earlier and ended at another gray door.
The wrong corridor was simply there.
A footstep sounded halfway along it.
Another answered near the far door.
Leo could see the entire passage. It was empty.
“Carrier is stable,” Gauss said. “Cross now.”
Leo placed one foot beyond the threshold and kept the other in the relay bay.
Nothing pulled at him. Both floors stayed beneath his boots: the anchor bay behind him, the impossible corridor ahead. He shifted his weight forward, then back. The doorway did not cut, stretch, or numb him.
“Where am I?”
“In a doorway. Keep moving.”
Leo brought his second foot across.
The relay bay remained visible behind him. Ahead, the second door stood open onto a narrow landing. Both ends of the route fit inside one uninterrupted view.
The first white light went dark behind Leo.
Then the second.
His body tried to turn the controlled walk into a run. He kept the rifle close and made himself place each boot flat.
“The source anchor is losing the corridor,” Gauss said. “Power loss, more damage, or a deliberate shutdown will close it. If Meridian shifts the break first, the far door may stop leading to the landing.”
Another light died.
The warning changed nothing Leo could reach. He walked faster.
A footstep sounded ahead.
Leo had not taken it.
The next came from behind, in the portion of corridor the failing lights had swallowed.
He turned his head just enough to see the last illuminated strip. Empty floor. Empty walls. Darkness where the source doorway had been.
“Do not stop,” Gauss said.
“I wasn't—”
A third step struck the floor beside him.
Leo flinched sideways. His boot hit the wall, pitching him toward the dark before he caught his balance. His shoulder twisted away from an impact that never came.
Nothing touched him. Without contact, he could not even assign the thing a side.
The panel had opened the route for two. Leo no longer knew whether he was the first traveler, the second, or the only part the corridor bothered to show.
The darkness drew closer. The far door remained open, but he refused to judge whether it had moved. He counted his own steps instead.
One.
The unseen walker answered from behind.
Two.
It answered from ahead.
Three.
No answer.
Leo took a fourth step before he realized he had been waiting for permission.
“You have a talent for making doors worse,” he said.
“Meridian deserves most of the credit.”
Leo let out a short breath and kept moving.
He reached the far threshold.
The moment both feet entered the landing, the door behind him closed.
The carrier symbol remained lit.
Leo opened the door again.
Dead cables filled a shallow recess. Concrete stood behind them. The corridor, the relay bay, and the only remaining view of the way back were gone.
Leo kept one palm against the wall and put the other hand into his pocket, closing it around the brass key stamped 4812. The teeth pressed into his palm. The key had never promised to open every door, only one particular door in one particular place. Meridian had taken away the place and left him carrying the promise.
Leo held his breath and listened. No one nearby was breathing.
He released the key and examined the landing. One terminal. One unpowered service door ahead. Bare walls between them. No vent large enough for a person, no side passage, no second shadow sharing his light.
The terminal woke.
RELAY CONNECTIONS ONLINE: 1/2
ORIGIN DEPARTURES: 1
The last line did not appear with the others.
Leo watched the blank space beneath the departure count. The carrier symbol blinked once. Then the terminal completed its record.
DESTINATION ARRIVALS: 2
He checked the landing again, although there was nowhere new to look.
“I crossed alone,” Leo said.
Gauss was silent long enough for the carrier symbol to blink a second time.
“No,” he said. “You left alone.”