Read Chapter 7: A Thread of Brass

The brass plate had to be thin enough to catch the light but thick enough to hold an etch. Elias ran his thumb across its surface, feeling the grain of a cheap alloy—the kind sold to watchmakers for pocket lids and to undertakers for coffin plaques. He had spent three days convincing himself he could not build Sinjin’s machine. Now he had spent four hours convincing himself he could build something better.

A lie that looked like the truth.

The false panel sat in his vise, a rectangle of dull gold no larger than his palm. On its face he had engraved the same micro-filaments that a real memory-panel would carry—a spiderweb of grooves so fine they vanished under lamplight. But the filaments went nowhere. They looped back on themselves like a snake eating its tail. Feed it power, and it would hum. It would glow. It would pretend to sing.

And when someone pressed it to their temple, it would play back only what Elias had etched into it: a gentle summer rain, a child’s laugh, the smell of baking bread.

Benign memories. Harmless. Useless as a weapon.

“You look like a man who’s sold his own shadow,” said a voice from the doorway.

Elias looked up. Percy stood in the frame, his lean frame wrapped in a grease-stained coat, a half-eaten apple in one hand. He had been Elias’s apprentice for three years, back when the shop had real work and real customers. Now Percy was the only soul who still came around, mostly to steal coal and complain about the weather.

“I’m building something,” Elias said.

“I can see that. Building it ugly.” Percy stepped inside, crunching a stray gear beneath his boot. He nodded at the panel. “That the trick you’re cooking for Sinjin?”

Elias’s jaw tightened. Percy knew about the debt—everyone in the Lane knew about Sinjin’s debts—but he did not know the details. Elias intended to keep it that way.

“It’s a medical device,” Elias said. “For a client. Sensitive.”

“Right.” Percy took another bite of his apple, chewed, swallowed. “And that’s why you’ve got it wired to a music box’s escapement, then?”

Elias looked at the bench. Percy was not wrong. The little clockwork mechanism he had scavenged from a broken toy now sat attached to the panel’s underside, its brass teeth set to trip a switch after thirty seconds of play. A timer. So the false memory would cut off before anyone grew suspicious.

“It’s decorative,” Elias said.

“It’s a bomb,” Percy said cheerfully. “Or a confession machine. Same thing, really.” He tossed his apple core into the bin and wiped his hands on his coat. “Look, boss, I don’t know what you’re into, and I don’t want to know. But I do know Sinjin’s men were here two nights ago, and they left a hairpin.” His voice dropped. “That’s not debt-collector talk. That’s the kind of talk that gets people fitted for boxes.”

Elias did not answer. He returned to the panel, adjusting the angle of a filament with a fine needle. His hands were steady. His heart was not.

“I need a test subject,” he said.

Percy blinked. “A what?”

“Someone to try the panel. It should be safe—it only plays what I’ve put in it. But I need to see it work on a living mind.” Elias hesitated. “You volunteer?”

“Absolutely not.” Percy backed toward the door. “I’ve seen what happens when one of your bloody inventions goes sideways. Remember the boot-warmers? I was picking boot-bits out of my leg for a week.”

“The boot-warmers were a design flaw.”

“The design flaw was that they exploded!”

Elias sighed. He had been afraid of this. Percy was his only willing assistant, and even he had reached the limit of his loyalty. Which meant Elias would have to find a stranger. Someone who would not ask questions. Someone who would take a brass panel pressed to their head as a curiosity, not a threat.

Someone like the street performer who juggled fire every morning outside St. Algernon’s Square.

The girl was young—maybe eighteen, maybe younger—with a soot-lined face and a coat patched in three shades of red. She caught a flaming baton behind her back and bowed as a scattering of pennies hit the cobbles. Her name, according to the chalkboard at her feet, was Mirella the Marvelous.

Elias approached as she was packing up her kit, stuffing the batons into a leather satchel. She eyed him warily—a mechanic in a work-stained apron was not her usual audience.

“You dropped something,” he said, holding out the panel.

She looked at it, then at him. “That’s not mine.”

“It’s a gift. A demonstration.” He kept his voice easy, professional. “I’m a maker. I’ve invented a device that shows you your happiest thought. Brands it into a plate, like a painting. You hold it to your temple for a moment, and then—like a photograph—you have it forever.”

Mirella laughed. “Bit fancy for me, guv. I’m lucky if I’ve got a shilling to my name.”

“It’s free. I’m testing it. If it works, you’ll see something bright. If it doesn’t—” he spread his hands, “—you’ll lose five minutes and gain a story.”

She considered him for a long moment. Her eyes were sharp, calculating. Street performers learned early to spot a swindle, and Elias was not swindling. He was simply lying.

“Alright,” she said. “But if I go mad, I’ll haunt you.”

She took the panel, turned it over in her hands, and pressed it to her temple. Elias held his breath. The escapement clicked. A faint hum rose from the plate—a thin, high note like a tuning fork struck in a quiet room. Mirella’s eyes fluttered closed. Her lips parted.

Then she smiled.

It was a small, private smile, the kind people wear when they think no one is watching. Her shoulders relaxed. She let out a soft breath.

The escapement clicked again. The panel went silent. Mirella lowered it, blinking like someone waking from a deep and pleasant sleep.

“Blimey,” she said. “That was—.” She looked at the panel, then at Elias. “That was my mum’s kitchen. The smell of her bread. And a song—some song, I don’t remember the name, but I used to sing it with my sister.” She laughed, a wet sound. “I’d forgotten that. I’d forgotten all of it.”

Elias felt something twist in his chest. He had built the panel to fool Sinjin, to pass off a lie as a machine of coercion. He had not expected it to be kind.

“Keep it,” he said.

Mirella stared at him. “You’re giving me a miracle?”

“I’m giving you a paperweight,” he said. “If it breaks, throw it in the Thames.”

She clutched the panel to her chest like a relic. Elias turned and walked away before she could thank him again.

By the time he reached his shop, the sky had gone the colour of bruised plums. He lit the lamp over his workbench, replaced the false panel in its vise, and pulled out the file he had been avoiding all day.

Lady Cordelia Vane. Bureau of Inventions. He had taken her card from his coat pocket a dozen times since her visit, reading the embossed lettering until it had worn smooth. There was a name and an address—a government office in Whitehall—but no title, no rank, no seal. That was odd. Everyone in the Bureau stamped their names with a crest. It was a matter of pride.

Elias turned the card over. On the back, in her elegant hand, she had written a single line: *Ask for me by the clock tower.*

Not an address. Not a message. A test.

He worked through the evening by lamplight. He had a contact, a clerk in the Metropolitan Archives named Ogilvy who owed him a favour for a clock repair that had saved Ogilvy’s job. Ogilvy was cautious, but he was also poor, and poverty made men pliable.

The reply came by pneumatic tube just past midnight. A single slip of paper, typed in Ogilvy’s cramped hand:

*No Lady Cordelia Vane on the Bureau’s register. No record of appointment. The clock tower at Whitehall is under renovation—has been for three years. The Bureau’s third-floor window is currently occupied by a fictional department called the Office of Aerial Acoustics, created six weeks ago. The woman you met is using a false name in a false office. She is not what she claims.*

Elias read the note twice. Then a third time.

A woman who was not of the Bureau, claiming to be of the Bureau, offering him a contract for memory machines. She knew about his panels—or suspected them. She had smiled the smile of someone who knew more than she would say.

And she had told him to ask for her by a clock tower that did not exist.

He folded the paper, slid it into his coat, and looked at the schematic pinned to his wall—the true extraction device, the one he had sworn he would never build. It was half-finished, its lines sharp and knowing. Sinjin wanted a weapon. The Bureau—or the woman pretending to be the Bureau—wanted a technology.

Elias had thought he was playing two sides against each other. But if the Bureau was a fiction, then he was playing one side against a ghost.

And the ghost had asked him to come and find her.

He looked at the false panel on his bench, still warm from the street performer’s touch. It had done what he had asked. It had been kind. And it still would not save his sister.

Tomorrow, he would go to Whitehall.