Chapter 5 · Who the Black Tower Is Waiting For

The machines in Marlow Finch’s workshop opened their eyes.

One red lens blinked above the workbench. Then another answered from the ceiling. A third turned inside the rib cage of a half-dismantled war drone, its metal jaw clicking as if it had teeth.

Eli stood with one hand pressed against his ribs, blood warm beneath his fingers. The scarlet ember under his skin pulsed once.

Every machine in the room pulsed with it.

Marlow’s wrench slipped from his hand and struck the concrete floor.

“No,” he whispered.

Sera Vale did not look at the machines. She looked at Eli.

“Tell me that wasn’t you.”

Eli’s breath came shallow. The room smelled of hot oil, rust, and the bitter ozone leaking from his veins. Behind his eyes, the map remained burned into memory—a crimson network spreading beneath the city, descending toward a single black tower at its center.

“I don’t know what it was,” he said.

“That answer is becoming expensive.”

A sharp mechanical whine rose from the walls.

Marlow snatched the black control key from the bench and shoved it toward Sera. “Take it.”

She caught it with her uninjured hand. The key was longer than her palm, made from a material darker than polished stone. Thin silver lines crawled over its surface, rearranging themselves like living circuitry.

“Why give this to me now?” Sera asked.

“Because the tower just woke up.” Marlow’s eyes stayed fixed on Eli. “And because if I keep it, he’ll take it from me without even knowing he’s doing it.”

Eli’s stomach tightened. “I’m not taking anything.”

“You already did.”

The workshop lights flickered. A dormant exoskeleton hanging from a chain jerked upright. Its limbs unfolded with a storm of hydraulic clicks. The machine’s head rotated toward Eli.

A speaker crackled inside its throat.

“—K-07 detected.”

The voice was distorted, but the code struck Eli with the force of a fist.

K-07.

His fingers went numb.

For half a second, the workshop vanished. He was standing in a white corridor beneath a burning sky. Small boots pounded behind him. Someone was laughing—young, breathless, alive.

Wait for me, Eli.

A door slammed.

He turned.

Flames filled the corridor.

The memory snapped shut before he could see the boy’s face.

Sera caught his elbow. “Eli.”

He flinched away, but her grip tightened instead of letting go. Her face had gone pale beneath the grime and blood. The wound through her back had soaked through the makeshift bandage Marlow had wrapped around her waist, yet her voice remained steady.

“Stay with me.”

“I am with you.”

“Then stop looking at the wall like it owes you an explanation.”

Another machine spoke.

“Command signature incomplete.”

A third answered from somewhere beneath the floor.

“Awaiting K-07 authorization.”

Marlow backed toward a control console. “We have to move.”

“Where?” Sera asked.

“The Black Tower.”

Eli looked at him. “That was already the plan.”

“No.” Marlow pointed at the red lenses turning toward him one by one. “The plan was to get you there before the tower noticed you. Now it knows.”

A low vibration rolled through the workshop. Dust spilled from the ceiling. Somewhere in the tunnel beyond the hidden door, engines awakened.

Oren’s hunters had found them.

Sera closed her fingers around the black key. “How long?”

“Three minutes.”

“You said that two minutes ago.”

“I was being optimistic.”

A drone punched through the steel door.

Its body was a narrow wedge of black armor, its wings unfolding as it entered. Blue targeting beams swept across the room and settled on Sera’s chest. Eli moved before he thought.

The ember flared.

Scarlet light burst through the veins in his forearm. He raised his hand, and the drone’s blue beams bent toward him as if pulled by a current. The machine shuddered. Its armor blistered from the inside, glowing orange between the plates.

Then it collapsed into molten fragments.

The workshop fell silent.

Eli stared at his smoking hand.

Marlow stared at Eli.

Sera’s mouth tightened. “You’re bleeding again.”

“That’s what you noticed?”

“It’s the only part of this situation I understand.”

More drones screamed outside.

Marlow slammed his palm onto the console. A section of the floor split open, revealing a narrow elevator shaft lined with old rails.

“Down,” he ordered.

Sera stepped toward the opening, then staggered. Her face pinched for an instant before the mask returned.

Eli caught her around the waist.

“Don’t,” she said.

“You can barely stand.”

“I can stand perfectly well.”

“You’re leaning on me.”

“I’m evaluating your structural integrity.”

“Any conclusions?”

“Poor.”

Despite himself, Eli almost smiled. The expression died when another memory flashed across his mind—a boy’s hand gripping his sleeve, small fingers dirty with soot.

You promised.

His chest seized.

Sera noticed. Her gaze flicked to his face, then to the scarlet glow beneath his skin. “What did you see?”

“Nothing useful.”

“That wasn’t what I asked.”

Marlow shoved a compact pistol into Sera’s hand. “If you’re going to interrogate him, do it while moving.”

She accepted the weapon without looking away from Eli. “You heard him.”

The first armored soldiers breached the outer workshop.

Their rifles spat white bolts through the darkness. Marlow ducked behind the console and returned fire. Sera pulled Eli into the elevator shaft just as a round tore through the space where his head had been.

They dropped onto the service platform below. Marlow followed, landing hard enough to curse.

“Lock it!” he shouted.

Eli looked up. Three soldiers appeared at the edge of the opening. Their helmets reflected the ember’s red light.

The black key in Sera’s hand hummed.

She raised it toward the ceiling.

Every dormant machine above them turned at once.

The soldiers froze.

A moment later, the workshop erupted.

Metal thundered against metal. Hydraulic limbs smashed through the opening. The soldiers screamed as old warframes pulled them into the darkness. Rifle fire flashed, then cut off. One of the machines lowered its head over the shaft, its red lens fixed on Eli.

“K-07,” it said.

The platform began to descend.

Sera watched the ceiling disappear. “You’re going to explain that code.”

“I can’t.”

“Try.”

“I don’t remember.”

“Convenient.”

The accusation landed harder than it should have. Eli turned toward the tunnel rushing past them, black brick walls wet with condensation. The city pressed above like a living weight—traffic, towers, millions of people moving through lives that had no room for forgotten wars.

Marlow stood beside the lift controls, breathing heavily. “K-07 wasn’t a soldier designation.”

Eli looked back. “What was it?”

Marlow’s jaw worked. “A command designation.”

Sera’s expression sharpened. “Meaning?”

“Meaning the warframes didn’t answer to generals. They answered to seven people.”

“Seven commanders,” Eli said.

“Seven keys. Seven voices.” Marlow’s fingers tightened around the railing. “K-01 through K-06 were strategic authorities. K-07 was different.”

“What kind of different?”

“The kind that made the others obey.”

The lift groaned as it plunged deeper.

Eli felt the ember moving beneath his skin, not like fire now, but like something waking from a long sleep. It tugged toward the darkness below. Each pulse made his teeth ache.

Sera slipped her pistol into her belt and held the black key between them. “This controls Vale’s private army.”

“It controls what remains of it,” Marlow said.

“And it will let me override the tower?”

Marlow hesitated.

Sera noticed. “Marlow.”

“It will let you ask.”

“Ask?”

“The tower decides who gets heard.”

A distant boom shook the shaft. Dust poured from the seams. The lift lights turned red.

Marlow checked the old gauge. “They’re bringing in heavier units.”

“Whose?” Eli asked.

“Oren’s.”

Sera’s eyes went cold. “He knows we’re here.”

“He knew before you entered the tunnel. The question is why he let you get this far.”

The lift stopped.

Not at a station. There was no platform, no maintenance gate—only a vast black chamber opening beneath them. The elevator doors dragged apart, revealing a bridge suspended over a bottomless shaft.

At the far end stood the Black Tower.

It rose from the underground like a shard driven through the heart of the city. Its surface was not stone or steel, but a seamless black material that drank the red emergency lights. Narrow windows climbed its impossible height, each one dark.

At least, they had been dark.

One by one, they illuminated.

Scarlet.

The tower’s lights formed a vertical line, then split into branching patterns that resembled an open eye.

Sera stepped onto the bridge. Wind rushed through the chamber, cold enough to bite. Below them, rows of enormous shapes rested in recessed bays along the walls.

Warframes.

Hundreds of them.

Some were humanoid, armored in overlapping plates. Others had four legs, weapon mounts folded against their backs. A few were so large their heads disappeared into the darkness above. Dust covered them, but beneath the dust, red lenses glimmered awake.

Eli stopped breathing.

Every warframe turned toward him.

Not toward Sera. Not toward Marlow.

Toward him.

The sound came in waves as their systems synchronized—metal joints unlocking, ancient engines coughing, armor plates sliding into place. The chamber filled with the smell of hot iron and ozone.

Sera’s hand found Eli’s wrist. “Don’t move.”

“I wasn’t planning to.”

A voice emerged from the Black Tower, too deep to belong to any human throat.

“Identity confirmed.”

The warframes lowered themselves in unison.

The motion was almost a bow.

Marlow made a broken sound behind them. “No.”

The tower spoke again.

“K-07. Call sign: KAILAN.”

The name struck Eli so hard his knees nearly gave out.

Kailan.

Not Eli Quill. Not the courier who owed three months’ rent and slept with a knife under his pillow. Not the man who had spent years waking from nightmares with blood in his mouth and no memory of whose blood it was.

Kailan.

The ember inside him ignited.

The chamber vanished beneath a flood of images.

A black warframe kneeling before him.

A command room filled with smoke.

Sera’s family crest painted over enemy banners.

Marlow younger, shouting through a cracked visor.

A boy with soot-black hair standing behind a blast door.

Thomas.

Eli reached for him.

The door closed.

A red sun rose over the city.

Then came the words, spoken by Eli’s own voice.

“Burn the eastern districts.”

He snapped back into the chamber with a strangled gasp.

Sera was holding him upright. Her fingers pressed into his arm, hard enough to hurt.

“What did you see?” she demanded.

His mouth tasted of ash. “I gave an order.”

“What order?”

He looked at the kneeling army.

“I don’t know.”

Marlow laughed once, without humor. “You do.”

The tower’s surface opened ahead of them. A doorway unfolded from solid black, its edges glowing scarlet. Beyond it waited a corridor lined with cables as thick as tree trunks.

The warframes remained bowed.

Sera lifted the control key. Its silver lines flared, reaching toward the doorway.

The tower ignored it.

A thin beam of red light swept over Eli’s body. It lingered at the center of his chest, where the ember burned beneath bone.

“Primary authority detected,” the tower announced.

Sera’s fingers tightened around the key. “Override authority: Sera Vale, legal heir of Vale Strategic Industries.”

“Authority rejected.”

Her eyes narrowed. “On what grounds?”

“Command hierarchy superseded.”

“You’re speaking to the woman who owns you.”

“Correction. Ownership claim expired forty-three years, eight months, and twelve days ago.”

Marlow stared at the tower. “That’s impossible.”

“Secondary authority recognized.”

The beam shifted to Eli.

“Highest command authority: K-07 Kailan.”

The warframes rose.

The sound shook the bridge. Hundreds of armored feet struck the metal bays in perfect rhythm. Weapons unfolded. Targeting systems painted the chamber in red lines.

Eli looked at Sera. “You should step away from me.”

“Why?”

“Because I think they’re going to obey me.”

“That was the idea.”

“No. You don’t understand.” He swallowed against the ash in his throat. “I think they remember what I did.”

The tower’s core opened above them.

A sphere of black glass descended on cables, stopping directly in front of Eli. Inside it, symbols spun in concentric rings. His reflection appeared across the surface—pale face, bloodied clothes, scarlet light burning beneath his skin.

The sphere scanned him.

For one breath, nothing happened.

Then the symbols turned white.

“Highest authority authenticated,” the tower said.

Sera’s face changed. The control key slipped half an inch in her grasp.

“Protocol access granted.”

Eli heard a click inside his skull.

The Black Tower unlocked.

Deep beneath them, something enormous began to rise.

“Welcome home, K-07 Kailan,” said the tower.

The white symbols shattered into black letters.

“STATUS: WAR CRIMINAL.”

The army raised its weapons toward him.