Chapter 4 · Chapter 4: Map to the Black Tower

Thump.

Somewhere beneath the abandoned transit hub, something enormous shifted in its sleep. Eli felt each pulse in the scarlet lines beneath his skin. They crawled from his wrist to his elbow, hot as wires pulled straight from a furnace. Every beat answered the thing below.

He kept one hand pressed against the wall and the other around his pistol.

Behind him, Sera Vale stumbled.

Not far. She would have rather died than give him the satisfaction of seeing her fall. But her boots scraped the concrete, and the breath she dragged through her teeth had gone thin and uneven.

Eli glanced back. "You’re bleeding again."

"That’s a remarkably observant diagnosis."

"I’m serious."

"So am I. Your bedside manner is terrible."

The tunnel lights flickered overhead, bathing her in sickly blue. Blood had soaked through the improvised bandage wrapped around her waist. Her face looked almost colorless, except for the sharp red streak beneath her left eye where a shard of glass had cut her during the drone attack.

She leaned harder on the metal rod she had taken from a collapsed railing. Her torn coat hung from one shoulder. The ruined Vale heir’s insignia was gone, ripped into pieces somewhere near the dead platform.

Eli had watched her do it.

Not ceremonially. Not with grief. She had torn the silver crest from her collar, folded it once, and dropped it into the drainage channel as if it were a piece of trash.

Then she had offered him a bargain while the city hunted them both.

Help her reclaim the Vale private army.

In exchange, she would find out who he had been before the name Eli Quill became a debt ledger and a courier license.

Before Caelan.

Before the burning city in the recording.

Before the young man with Eli’s face stood inside a warframe and turned whole districts scarlet.

Another heartbeat rolled beneath their feet.

Eli’s fingers tightened around the pistol. "How much farther?"

Sera pulled a folded transit map from inside her coat. The paper was old, stained with oil, and marked with three red lines that crossed beneath the city. She unfolded it against the wall.

"Two blocks east. Then down through the flood tunnels."

"You said the workshop was nearby."

"It is nearby by aristocratic standards."

"You walked here while bleeding?"

"I was carried for part of it."

"By whom?"

Her eyes lifted to his. For half a second, something almost amused moved behind them.

"You."

Eli looked away first.

That annoyed him more than the answer should have.

They moved on.

The old transit hub had been dead for twenty years, but the lower tunnels still carried the city’s forgotten machinery. Pipes sweated warm water. Electric cables hung in black loops from the ceiling. Somewhere in the dark, a pump coughed, failed, and began again.

Eli led with the pistol raised. Sera followed close enough that he could feel her body heat whenever the passage narrowed. He hated that he noticed it. Hated even more that she noticed him noticing.

"You’re limping," she said.

"You’re bleeding."

"You already used that observation. Try another."

"You talk too much."

"And yet you keep listening."

His jaw tightened. "What exactly are we looking for at this workshop?"

"A control key."

"For the Vale army?"

"For the command lattice that controls it. The army’s soldiers are not ordinary people. They’re fitted with compliance rigs, targeting implants, and tactical links. The key can override the command hierarchy."

"And you have one?"

"No. Marlow Finch has one."

The name struck him strangely.

Not as memory. As pressure.

A door slamming shut.

A man laughing through smoke.

A voice shouting, Run, Caelan, run!

Eli stopped so abruptly Sera nearly walked into him.

The sensation vanished. Only the tunnel remained, wet and blue and humming with buried electricity.

Sera studied his face. "What happened?"

"Nothing."

"That was not nothing."

"I remembered a door."

Her expression sharpened. "What kind?"

"Metal. Red paint. Someone was yelling."

"Marlow’s workshop has a red steel door."

Eli stared at her.

She folded the map. "Then we’re close."

The tunnel ended at a vertical maintenance ladder. Sera climbed first despite the blood darkening her bandage. Eli followed, one hand hovering near her boots in case she slipped. The shaft smelled of rain, rust, and chemical runoff.

At the top, Sera pushed aside a circular hatch.

Cold night air spilled in.

They emerged behind a row of abandoned warehouses beneath the elevated freight tracks. Rain whispered across the corrugated roofs. Beyond them, the city rose in layers of black glass and neon, its towers glowing through the storm like knives held against the clouds.

A security drone drifted past the far end of the alley.

Eli pulled Sera into the shadow of a loading bay.

Her back struck his chest. She went still.

The drone’s searchlight swept over the wet pavement, paused a few feet from their boots, then moved on.

Sera’s breathing brushed his throat.

"You can let go now," she murmured.

Eli realized his hand was wrapped around her waist, holding her upright.

He released her. "You were about to fall."

"Of course I was. The pavement looked dangerous."

He glared at her.

The corner of her mouth twitched. Then the pain returned, wiping the humor away. She pressed a palm to her side and waited until the drone vanished.

"There," she said, nodding toward the warehouse across the alley. "Number seventeen."

The building had no lights, no sign, and no visible entrance except a rusted red steel door.

The memory struck again.

A child’s hand gripping his.

The taste of blood.

Marlow saying, Don’t look back.

Eli crossed the alley.

The red door had three locks: mechanical, electronic, and something that looked like a strip of black glass. Sera removed a narrow tool from her sleeve.

"You brought lockpicks to an infiltration?" Eli asked.

"I brought options."

"You’re a wanted heiress with a hole through your back."

"Former heiress."

"That title lasted less than an hour."

"You’re being cruel."

"I’m being accurate."

She slid the tool beneath the first lock. "Accuracy is the foundation of cruelty."

The first mechanism clicked.

The second lock began to glow.

Eli’s ember marks flared beneath his sleeve.

The black glass strip answered with a faint scarlet pulse.

He jerked his hand away from the door.

Sera saw it. "The lock recognizes you."

"That’s impossible."

"Most useful things are."

The pulse came again, brighter this time. The steel door shuddered. Somewhere inside the warehouse, machinery woke with a low mechanical groan.

Eli’s skin burned.

He placed his palm against the glass before he could stop himself.

Scarlet light spread beneath his hand.

The lock opened.

The door swung inward.

A gunshot cracked through the darkness.

Eli dragged Sera down as a round punched through the doorframe. He rolled across the threshold, came up behind a stack of engine casings, and fired toward the muzzle flash.

His shot struck metal. Sparks burst in the dark.

"Marlow Finch!" Sera shouted. "We’re not here to kill you."

"That’s what killers say when they miss!"

Another shot slammed into the casing beside Eli’s head.

The workshop erupted around them. Work lamps ignited one by one, revealing suspended engines, disassembled drones, armored limbs, and cables hanging like vines from the ceiling. The place was twice as deep as the warehouse outside. Platforms crossed the open space at different heights, connected by ladders and narrow catwalks.

A man moved above them.

He was lean, gray-haired, and wearing a welding mask pushed up over his forehead. A heavy revolver rested in his hand. His coveralls were stained with oil, and a metal brace ran from his left shoulder to his wrist.

Marlow Finch aimed at Sera.

Eli stepped in front of her.

Marlow’s eyes shifted to him.

The revolver lowered by an inch.

Rain ticked against the roof.

For a moment, nobody moved.

Marlow climbed down the ladder. His gaze stayed fixed on Eli’s face, searching every line as if the years between them were a smudged photograph.

"No," he whispered.

Eli kept his pistol trained on him. "You know me?"

Marlow’s face emptied of color.

"You’re dead."

"People keep saying that."

The mechanic came closer. His boots struck the metal platform with slow, uneven steps. He looked older than the city’s war records. Older than the scars along his jaw. But his eyes were clear, and something inside them had begun to break.

"Take off your sleeve," Marlow said.

Eli didn’t move.

Sera spoke quietly behind him. "Marlow, we need the control key. Oren is moving the army tonight."

"I don’t care about Oren."

"You will when his soldiers reach this district."

"I said I don’t care!"

The shout shook the hanging tools. A wrench fell from a peg and clanged against the floor.

Marlow pointed the revolver at Eli again. "Show me your arm."

Eli’s pulse hammered. "Why?"

"Because I need to know whether I’m looking at a ghost or the man who left my brother to burn."

The words cut deeper than the gun.

A flash filled Eli’s mind.

Ash falling like snow.

A boy in a cracked helmet, crouched beside a wrecked transport.

His own hand reaching toward him.

The warframe’s scarlet shadow falling over them both.

Then a voice—not his—screaming from inside the machine.

Eli staggered.

Sera caught his elbow. "Eli."

Marlow saw the movement. His expression twisted.

"You don’t even remember him?" he demanded. "You don’t remember Tomas?"

Eli pulled free of Sera’s grip. "I don’t remember anything."

"Convenient."

"You think I chose this?"

"I think you chose the armor. I think you heard him calling and walked away while the whole eastern line came down around him."

Marlow crossed the distance in three furious strides. The revolver pressed against Eli’s chest.

The ember beneath Eli’s skin answered.

Scarlet marks spread past his wrist, climbing toward his throat. Heat rolled through the workshop. Nearby drones flickered awake. Their lenses turned red.

Sera raised her pistol. "Marlow, lower the weapon."

"He abandoned Tomas!"

"I don’t know who Tomas is!" Eli shouted.

Marlow slapped the pistol from his hand. "He was twelve! Your brother was twelve!"

The workshop fell silent except for the rain and the deep, distant heartbeat beneath the city.

Eli stared at him.

Brother.

The word opened something locked inside his skull.

A small room with yellow walls.

Two beds.

A paper star taped to the ceiling.

A boy’s voice whispering, If you become a soldier, promise you’ll come back.

Eli’s knees weakened.

Marlow grabbed the front of his coat and shoved him against a workbench. Tools scattered across the metal surface.

"You promised him," Marlow snarled. Tears shone in the corners of his eyes, furious and unwanted. "You promised him, Caelan. Then you put on that thing and turned the valley into a furnace."

The ember marks burned through Eli’s sleeve.

The machinery around them began to vibrate. A suspended combat arm swung loose from its chain and struck the floor. The black metal buckled inward, drawn toward the scarlet glow beneath Eli’s skin.

Sera noticed first. "Eli, control it."

"I don’t know how."

"Then stop feeding it."

"I’m not feeding anything!"

Marlow released him and stumbled back. His fury collapsed into fear.

"The same light," he whispered. "God help us. It’s the same light."

Eli looked down.

The scarlet lines had formed a pattern on his arm—a branching symbol, almost like a map. Three black points marked its center. One pulsed in time with the heartbeat beneath the city.

Marlow saw the symbol and shut his eyes.

When he opened them, the anger was still there, but something heavier had joined it.

Regret.

He crossed to a battered console beneath a hanging lamp and opened a hidden compartment. Inside lay a small metal cylinder wrapped in oilcloth. He carried it back and held it out to Sera.

She did not take it immediately.

"Is it the control key?"

"It’s the only thing left that can wake the command lattice without Oren’s authorization."

"Why give it to me?"

Marlow looked at Eli. "I’m not giving it to you."

Sera took the cylinder.

Its surface unfolded into a thin black shard, etched with shifting lines of blue light. The lines rearranged themselves when Eli came near, forming a map of the city’s underground levels.

One route descended beneath the financial district.

At its end stood a tower symbol.

The Black Tower.

Eli felt the buried machine turn toward him.

Marlow’s voice dropped to a whisper. "You need to understand something before you go."

Sera closed her fingers around the key. "We’re listening."

"The army in the Black Tower isn’t waiting for Oren."

The lights went out.

In the darkness, every dead machine in Marlow’s workshop opened its eyes.

Scarlet lenses filled the room.

Marlow looked directly at Eli.

"They’re waiting for you, Caelan."