Chapter 1

Six months. Six months since Master Alistair Finch had vanished, leaving behind a workshop crammed with half-finished inventions and a trail of questions no one wanted to answer. Six months since the Guild had branded her a liability, a reckless apprentice who’d driven her mentor to ruin. The whispers followed her through every market and alley: She broke him. She broke him.

Elara pressed a hand to her sternum. Beneath her ribs, her clockwork heart ticked steady and constant—a rhythm she’d been born with, a gift from the man she’d trusted most. But lately, the beat had changed. Stuttered. Skipped. And sometimes, when she was alone in the silence of her small room, she could swear it hummed.

She shook her head and turned back to the cricket. The Guild had taken away her workshop license, her tools, her reputation. All she had left was the tiny room above a bookbinder’s shop and a handful of broken remnants she scavenged from the scrap heaps. She couldn’t afford to lose her nerve.

Her fingers closed around a fresh copper wire. She threaded it through the cricket’s hollow leg, her motions practiced even through the tremor. The gears inside clicked, and the cricket’s antennae twitched. It was almost alive. And that, she thought bitterly, was the problem with all automata—they were never quite alive. Just puppets wound tight.

A flicker of heat pulsed in her chest—not pain, but something sharp and insistent. The heart skipped twice, and for a moment Elara heard it: a low, humming note, like a music box winding down. Her breath caught.

It was the same note Master Finch used to whistle when he was deep in thought. The same key, the same pitch.

She jerked her hand away, yanking the wire loose. The cricket’s leg went silent.

“Stop it,” she muttered to no one. To herself. To the heart that shouldn’t be able to hum at all. “You’re just tired. It’s just… memory.”

But even as she said it, she knew better. The heart had been designed to replicate the organic pulse—nothing more. No sound, no memory, no will. Yet the humming had been unmistakable.

She pushed back from the table and stood abruptly, her chair scraping against the floorboards. The room was too small, too quiet. The air smelled of oil and dust and old paper. She needed to move. To think. To do something other than sit here and let ghosts whisper through her chest.

Her gaze fell on the sketch pinned above her workbench: a half-completed diagram of Master Finch’s last project—a device he’d called the Aetherheart. She’d never fully understood its purpose. He had always been cryptic, waving off her questions with a gleam in his eye. “True progress requires stepping beyond the accepted boundaries,” he’d say. And then he’d go back to scribbling equations that made no sense.

Now the Aetherheart was gone, along with every prototype and journal. The Guild had sealed his workshop on Cathedral Row, claiming it was for “investigation.” But no investigation had occurred. Just locked doors and muttered rumors.

Elara grabbed her worn leather satchel and slipped it over her shoulder. If the heart wanted to sing, it would sing on the move.

She stepped out into the iron-gray evening. The sky above the city of Veradium was a patchwork of smokestacks and dirigibles, their brass bellies catching the last light. Streetlamps flickered to life, their gas flames dancing inside glass globes. The sound of gears grinding rose from the undercity—the great Clockwork Heart that kept Veradium alive. It was a rhythm she’d always found comforting.

Tonight, it felt wrong. Offbeat.

She walked fast, head down, keeping to the shadows. The Guild’s watchmen patrolled the main thoroughfares, their enameled masks gleaming. They didn’t stop her; they didn’t need to. Everyone knew who she was. The disgraced tinkerer. The girl with the ticking heart.

Cathedral Row was quieter. The buildings here were older, their stone facades stained with soot. Master Finch’s workshop sat at the end of the street, its windows boarded, its door sealed with a Guild mark. Elara stopped at the corner, her hand tightening on her satchel strap.

She shouldn’t be here. If the Guild caught her, they’d throw her in the Iron Ward for sure. But the humming in her chest had grown louder, more insistent. It was pulling her, like a compass needle seeking north.

She circled to the back of the building, where a small service alley was cluttered with rusted gears. The basement window was loose—she knew because she’d loosened it herself, years ago, after a late-night tinkering session with Master Finch. She knelt, worked the frame free, and slid through into the dark.

The air inside was stale, thick with dust. She pulled a small lantern from her satchel, lit it, and held it high. The workshop was a graveyard of half-finished devices. Clocks without faces. Automaton arms. A skeleton of a bird with copper feathers scattered on the floor. And there, on the main workbench, a journal she’d never seen before.

Her heart stopped humming.

It was bound in black leather, its pages yellowed. She crossed the room, her footsteps echoing. Her fingers brushed the cover, and the heart in her chest gave a single, sharp beat—loud in the silence.

The journal fell open to a page covered in Master Finch’s handwriting. She had to squint: the ink was smudged, the letters cramped.

They will come for it. They will tear apart everything we’ve built. But the heart of the city is not a machine—it is a door. And once opened, it cannot be closed.

Elara’s throat tightened. “Heart of the city…?”

She turned more pages. Diagrams. Equations. References to something called the Riftstream—a source of energy that didn’t come from steam or coal, but from a power that defied all known science. According to the notes, Master Finch had found a way to tap into it. To transform it into usable magic.

But magic was forbidden. It had been outlawed a century ago, after the War of the Mechanisms. The Guilds had crushed all research, all practice. Anyone caught with so much as a thaumic regulator was exiled—or worse.

And Master Finch had been its pioneer.

Elara’s hands trembled. She read on, her eyes flying across the text. The journal described a conspiracy within the Guild itself—someone high up, someone who wanted the Riftstream for their own purposes. Someone who had threatened Master Finch, warned him to stop his work.

If I vanish, destroy this. But if you are reading this, Elara, it means I have failed. Do not trust the Guild. Do not trust the heart that beats in your chest. It is not what it seems.

A chill shot through her. She looked down at her sternum, where the clockwork heart ticked away. Not what it seems.

And then she heard it: footsteps, slow and deliberate, from the front of the workshop.

She snapped the journal shut, shoved it into her satchel, and doused the lantern. Her own heart hammered, the clockwork pulse surging into a frantic rhythm. She pressed herself against the wall, behind a rack of hanging gears, and tried to breathe slowly.

The footsteps came closer. A lantern beam swept across the floor, catching the dust motes. Elara bit her lip.

“I know you’re here, Elara,” a voice said—low, smooth, familiar.

Silas Thorne.

She released a shaky breath. Silas was a guild artisan, a rising star in the Artificers’ Brotherhood. He had always been kind to her, offering small smiles when no one was watching, leaving spare parts on her doorstep. But he was also Guild. And Guild meant danger.

She stayed hidden.

“Don’t be afraid,” he continued. “I’m not here to turn you in. I’ve been watching your workshop for weeks, making sure you’re safe.”

Watching me? The thought sent a new kind of chill down her spine.

“You took the journal,” he said softly. “Good. You need to read it. All of it. But you can’t stay here. Valerius has patrols sweeping the Row tonight. They’re looking for anything that belongs to Finch.”

She hesitated. Every instinct told her to run. But the heart in her chest gave a sudden, sharp beat, and she heard—felt—a whisper, so faint it might have been imagination:

Trust him.

Elara stepped out from behind the gears, her hands raised. Silas’s lantern illuminated his face—handsome, concerned, his eyes sad.

“Why are you helping me?” she asked.

He smiled, a little rueful. “Because I believe in second chances. And because I think you’re the only one who can finish what Finch started.”

A crash sounded from the front of the building. Voices, rough and angry.

Silas’s expression hardened. “Go. Now. Through the back. I’ll hold them off.”

She wanted to argue, but her heart was already pulling her toward the window. She turned, scrambled out into the alley, and ran.

The night swallowed her, the journal heavy in her satchel. And as she fled, the clockwork heart in her chest hummed a single, clear note—a question, a command, a plea.

Find me.