Voltage

CODA Gets a Signal

Hunter woke on a wooden cot at seven a.m. to the sound of Wire running a grinder somewhere in the front of the shop.

He lay still for a moment, doing what he had started doing every morning since the accident — a fast internal check. Hands: steady. The hum was there, lower than it had been at the underpass, manageable. The rubberized boot lining had held overnight. No scorch marks on the cot. No blown circuits in the wall.

Progress.

He got up, pulled on the modified boots, and went to the cleared section of floor Wire had designated as his workspace. He did not wait for Wire to come back and supervise. He knew what he needed to work on.

Precision.

Dropping the Ashline man through ground conduction had required zero accuracy — he had simply discharged into the nearest large conductor and let the current find its own path. That worked once. It would not always work. If the ground was dry, if the target was not standing in water, if there was no rebar column within reach, the same move produced nothing. He needed to be able to direct output to a specific point without relying on what happened to be under someone's feet.

He spent the first hour working with a row of dead car batteries Wire had lined up on the floor six feet apart. The task was simple: charge one battery at a time without the current jumping to the adjacent units. He failed the first eleven attempts. On the twelfth he held the discharge narrow enough that only the target battery registered a charge. He held that for four seconds and released.

He stood back and looked at the row.

Eleven dead batteries. One charged.

He moved to the next one.

Wire came in at nine with two coffees and a folded piece of paper. He handed Hunter a coffee, looked at the battery row, counted the indicator lights, and nodded once.

"Seven out of twelve." Hunter said. "In the last forty minutes."

"Better than yesterday." Wire sat on his stool and unfolded the paper. "I pulled the grid logs from the city utility monitoring system. I have a contact there."

Hunter looked up. "Why?"

"Because every time you discharge at significant output, it shows up as an anomalous reading on the nearest monitoring node. The surge at the underpass two nights ago — that registered. The work you did in the scrubland on Drewe Street registered. Lower, but it's on the log."

Hunter set his coffee down. "How many entries?"

"Four. Across three locations. They're flagged as equipment anomalies right now, not investigated." Wire refolded the paper. "But they're in the system. If the pattern continues, someone is going to notice the anomalies are mobile."

"Mobile meaning they follow one location."

"Mobile meaning they are not consistent with fixed equipment failure." Wire looked at him. "You understand what I'm telling you."

Hunter understood. A faulty transformer produced anomalous readings at one address. What Hunter was producing moved across the city with him. That was a different category of problem — and anyone with access to the grid logs and enough pattern recognition would see it eventually.

"How long before it becomes a priority?" Hunter asked.

"Depends who's watching the system. Could be weeks. Could be less if you put out another surge the size of the underpass incident."

Hunter looked at the battery row.

"Then I need to get controlled faster," he said.

"Yes," Wire said. "You do."

Sergeant Priya Desh worked the early shift at CODA's regional signals desk, which meant she was in her chair by six a.m. and responsible for flagging anything in the infrastructure monitoring feeds that did not fit standard variance parameters.

It was not glamorous work. Ninety percent of the flags were equipment faults, weather interference, or data errors from aging sensors. She processed them, categorized them, and moved on. She had been doing this for two years and had escalated a total of seven incidents to active review. Three of those had turned out to be hardware failures. Two had been deliberate infrastructure interference from organized groups. Two remained open.

At 9:47 a.m. she pulled up the southern district grid log and ran her standard cross-reference.

Four anomalous readings. Six days, three locations.

She almost categorized them as equipment variance and closed the file. The readings were not large the underpass incident was the highest, and it sat just above the threshold she used to separate mechanical fault from deliberate interference. The other three were smaller.

What stopped her was the location pattern.

The first reading was at Vantage Industrial's Level 3 floor six days ago. She pulled the incident report attached to that node. An industrial accident. One worker hospitalized. The surge reading was logged as a consequence of the capacitor failure and closed.

The second reading was two days later. Drewe Street, residential grid. A localized spike with no attached incident report. Equipment fault, probably.

The third and fourth readings were from the scrubland behind the Drewe Street fabrication lots and from the same street's underpass node. Same night. Two hours apart.

Priya sat back in her chair.

The Vantage reading she could explain there was an incident report. The residential reading she could explain — bad transformer, probably. But the scrubland and underpass readings had no infrastructure explanation. There was no equipment at either location that could produce that pattern. And the underpass reading was the highest of the four, which meant whatever was generating these surges had not been weakening. It had been moving. And it was getting stronger.

She opened a new case file. She typed: MOBILE ANOMALOUS SURGE - SOUTHERN DISTRICT — LOW PRIORITY REVIEW.

She attached all four readings, cross-referenced the Vantage incident report, and flagged it for the weekly analyst review.

Then she paused.

She pulled up the Vantage incident report again. One worker. Admitted to Northgate General. Discharged three days later. Name: Hunter Williams.

She looked at the date of the first surge. The date of the accident. The same day.

She changed the case priority from Low to Medium.

Then she sent it up the chain.

By midday Hunter had nine of the twelve batteries on the floor holding a charge. His accuracy was improving but the cost was real he could feel the output draining him the way sustained physical effort drained the body. He was hungry in a way that food did not seem to fix. He had eaten everything Wire had in the back room and was still operating at a deficit.

Wire came in and looked at the battery row. "Take a break."

"I'm fine."

"You've burned through approximately four thousand calories worth of output this morning and you haven't eaten since yesterday. You're not fine, you're running on reserve." Wire sat down. "What happens if you hit zero?"

Hunter did not know the answer to that. He sat on the rubber mat and drank the rest of his cold coffee.

"I need to know the ceiling," he said. "I need to know what the maximum output looks like before someone else finds out for me."

Wire thought about that. "Not here. Not inside my shop. If you lose control at ceiling output you'll take out every circuit in this building and probably the two on either side."

"So where?"

Wire pulled out his phone and opened a map. He turned it toward Hunter. "Old switching station on the south edge of the rail yard. Decommissioned two years ago. Concrete structure, no active connections to the grid, isolated from the nearest residential node by four hundred meters of dead track." He looked at Hunter. "Tonight. After midnight. You push to the limit there and whatever happens, it stays contained."

Hunter looked at the map. Then at his hands.

"And if I can't pull it back?"

Wire was quiet for a moment. "Then we find out what that looks like and we deal with it." He pocketed his phone. "But I think you can. You've had control problems when you weren't trying. Every time you've actually tried, you've pulled it back. That matters."

Hunter nodded slowly. It was not reassurance he needed. It was a plan. Wire had given him one.

"Tonight," Hunter said.

The switching station was exactly what Wire had described a decommissioned concrete block at the south end of the rail yard, its connection points stripped and sealed, weeds growing through the gaps in the floor. No lights. No power. Nothing live within four hundred meters.

Hunter stood in the center of the main floor. Wire stood at the entrance, which was forty feet back. Far enough to observe. Far enough to run.

"When you're ready," Wire said.

Hunter closed his eyes. He stopped managing the output. He stopped pulling it back. He let it build.

Ten seconds. The air around his hands dried out as the charge density increased. His hair rose slightly at the temples.

Twenty seconds. The sealed connection points on the walls stripped, dead, attached to nothing began to hum. Metal responding to the field he was generating, not current, just induction from proximity.

Thirty seconds. He opened his eyes. His hands were lit from the inside, the skin translucent at the palms, pale blue-white light showing through from whatever was building underneath.

He pushed harder.

The floor cracked under his feet. Not from heat from the electromagnetic field compressing downward, the ground itself responding to the pressure. A three-foot section of concrete split along an existing fault line and dropped two inches.

Wire took a step back from the entrance.

Hunter held it. He was at the edge of something he could feel the threshold the way you feel the edge of a surface in the dark. One more push and he would not be able to pull it back. He held the line. He breathed. He counted to five.

Then he pulled the charge down in a single controlled motion, drawing it back into himself the way he had practiced with the batteries. The hum in the walls stopped. The light at his palms faded. The air in the station settled.

He stood in the dark and breathed.

Wire walked in slowly and looked at the cracked floor. He crouched down and ran his hand along the split concrete. He looked up.

"That was controlled?"

"Yes," Hunter said.

"And the ceiling?"

Hunter looked at his hands. The light was gone but the pressure was still there, waiting, the same way it had been waiting since the hospital. He understood now that it was not going to stop growing. What he had just held back was not his limit. It was not close to his limit.

"I didn't hit it," he said.

Wire stood up slowly. He looked at the cracked floor, then at the walls, then at Hunter.

Neither of them said anything for a moment.

Then Wire's phone buzzed in his pocket. He took it out, read the screen, and his expression changed.

"We have a problem," he said. He turned the phone toward Hunter.

It was a message from his contact at the city utility. Four words.

CODA flagged your boy.