Read Chapter 27: The Princess of Pistons

The train shuddered over a rusted trestle, and Marie pressed her palm against the window glass to steady herself. Outside, the southern countryside blurred past—vineyards gone fallow, irrigation towers listing like drunkards, their brass fittings stripped for scrap. The war had not reached this far, but hunger had. Hunger always traveled faster than armies.

She had been traveling for two days, her arm bound tight beneath her coat. The wound pulsed with each heartbeat, a dull insistence she had learned to ignore. Léon, the young engineer she had recruited in Lyon, watched her with the nervous intensity of a man who had never seen a woman lead anything more than a kitchen.

“The Guild of Mechanics at Grenoble,” he said, clutching his satchel. “They refused the council’s summons. They say the northern conflict is not their concern.”

Marie turned from the window. “They’ll say otherwise when I speak with them.”

Léon swallowed. He was barely twenty, with spectacles that kept sliding down his nose and ink-stained fingers that twitched when he was anxious. Émile had sent him, one of the few workers who had stayed loyal through the chaos. A kindness, perhaps, to give her a companion for the journey. Or a leash.

The train lurched into a tunnel, plunging them into darkness. When it emerged, the landscape had changed. The vineyards gave way to scrubland, then to the pale limestone foothills of the Massif Central. And there, huddled in a valley between two jagged peaks, sat the Old City.

Marie’s breath caught.

It was not a city in the modern sense. It predated the steam age by a thousand years—a warren of Roman walls, medieval towers, and narrow streets that defied the geometry of the clockwork era. No chimneys rose from its rooftops. No pressure gauges crowned its gates. It was a fossil, preserved in stone and silence.

“The old man said we should stop here,” Léon said, consulting a crumpled map. “There’s a mechanic in the lower town who works with pre-steam mechanisms. Dials and springs. The old Guild of Horologists.”

Marie’s instincts prickled. Something about the place felt wrong. The train slowed as it approached a station that looked abandoned, its platform cracked and overgrown. A single figure stood on the platform, silhouetted against the haze—a woman in a wide-brimmed hat, holding a lantern that burned with yellow flame, not steam.

“You requested an audience with the Guild of Horologists?” the woman called as Marie stepped onto the platform. Her voice carried the clipped accent of the northern aristocracy.

Marie’s jaw tightened. “I requested engineers. You are not an engineer.”

The woman smiled, thin-lipped. “No. I am a messenger. The Guild is… indisposed. But they asked me to bring you somewhere you might find what you seek.”

Léon stepped between them. “We don’t take directions from strangers.”

The woman tilted her head, amused. “You don’t take directions at all, boy. That is why your city burns.”

Marie studied her. The hat was too fine for the provinces. The gloves were kid leather, immaculate despite the dust. And the lantern—the flame was not oil. It was alchemical fire, burning with the pale blue signature of royal munitions factories.

“You’re royalist,” Marie said quietly.

The woman’s smile widened. “I am a patriot. And I have information your council would trade the Iron Promise to possess.”

Marie’s hand moved to the derringer hidden in her coat. Léon’s breath quickened beside her.

“Say it quickly,” Marie said. “Then decide whether you walk away from this platform.”

The woman laughed, a brittle sound like breaking glass. “Fouché is not dead.”

The words hit Marie like a steam blast. She kept her face still, but her mind raced—the bell tower, the blood, the body crumpled against the ancient stone. Émile had fired. Émile had *seen* him fall.

“He is very much alive,” the woman continued, savoring Marie’s stillness. “The man you shot was a double, a servant who wore his face. Fouché left Paris three nights before your little uprising. He traveled south, through the Old City, on horseback. And he did not come alone.”

Marie forced her voice level. “Where is he now?”

The woman gestured toward the ancient walls rising in the distance. “You are standing at his doorstep. He is inside the Old City, negotiating with mercenary captains from the Pyrenees. Two thousand blades, if they can agree on a price. Enough to retake Paris while its defenses are dismantled.”

Léon grabbed Marie’s arm. “We need to go. Now. Back on the train.”

Marie shook him off. She studied the woman’s face, searching for the lie. Royalist agents always lied—it was the first lesson the guild had taught her, back when she was an apprentice in a skirt too long for the machinery. But she saw no tell. The woman’s hands were steady, her gaze unblinking.

“Why do you tell me this?” Marie asked. “If you are royalist, Fouché is your champion.”

The woman’s expression flickered, something cold passing behind her eyes. “Fouché is a means to an end. The throne belongs to the Dauphin, not to a butcher who would crown himself regent. If your revolution kills him, I lose nothing. If I sell you to him, I lose only my dignity.” She paused. “I have been losing that for years.”

The lantern flame guttered. Somewhere in the Old City, a bell tolled—low and ancient, a sound from before steam, before clocks, before time itself was measured in gears.

“He plans to strike within the week,” the woman said. “But he needs the Old City’s waterworks to flood the tunnels beneath Paris and trap your automatons in the catacombs. The old engineers in this region built them. They are the only ones who can shut them off.”

Marie felt the weight of the information settle on her shoulders. She had come south to recruit builders. She was leaving with a war.

“Take the train back,” she said to Léon. “Report to the council. Tell them Fouché is alive and moving.”

Léon’s face paled. “What about you?”

Marie turned toward the ancient gates. The wound in her arm pulsed, a reminder that she was not what she had been. But she straightened her shoulders anyway.

“I’m going to find those engineers myself,” she said. “Before Fouché does.”

The woman in the hat watched her with something that might have been respect. “The Old City will not welcome you. Its people do not trust steam, or the fire it carries. They will see your wound and smell the coal smoke on your clothes.”

Marie smiled, grim and thin. “Then I will win them with something older than steam.”

She walked toward the gate. Behind her, she heard Léon’s hesitant footsteps boarding the train, then the hiss of steam as it began its slow retreat north. The woman’s lantern guttered and died, leaving Marie alone in the shadow of the ancient walls.

The gate loomed before her, carved with figures she did not recognize—not saints, not kings, but workers. Blacksmiths with hammers raised. Miners with lamps. Women at looms. The Old City had not always been a fossil. Once, it had been a fortress of craft.

Marie pressed her hand to the stone. The wound in her arm throbbed, hot and angry.

Somewhere beyond the gate, Fouché was gathering an army.

And she walked in alone to stop him.