The forge was supposed to be closed after sundown.
Sera had the authorization folded in her apron pocket, a single line in Misaki's handwriting: Full access, any hour, no questions. She had not shown it to anyone because no one had asked. The guards at the workshop district knew the Lord Saint's sister by sight, and a nine-year-old walking through Mieua's streets after dark with a sixteen-year-old mana specialist at her side did not require explanation. It required only the particular confidence of two girls who had been given a task that mattered.
The forge was warm. Torran had banked the main furnace before leaving, but the coals still breathed orange beneath their ash blanket, and the heat pressed against Sera's face as she pulled back the grate and fed fresh fuel into the bed. Feya arranged materials on the workbench behind her. Metal rods cut to precise lengths. Sheets of thin copper hammered flat. And a row of small clay cylinders, each one no larger than a fist, their surfaces inscribed with mana channels that Feya had spent the past week calculating.
They did not speak about what they were building. Misaki had been specific about that. The project had no name, no documentation, no entry in the quartermaster's supply ledger. The materials had been requisitioned under three separate work orders, each one ordinary enough to attract no attention. Copper for temple fittings. Iron rods for construction scaffolding. Clay for kiln repair.
Together, they became something else entirely.
Sera unrolled the design schematic that she and Misaki had drawn together over three nights of quiet work in the study, after Kyn had been put to bed and the administrative hall had emptied. The diagram showed a device that had no equivalent on Vulcan. Misaki had described the principle to her using words she had never heard before, words from his old world that he translated into engineering concepts she could grasp. Trajectory. Compression. Payload.
She understood the math. She understood the forces involved. What she did not yet understand was how it would feel to watch something she built change a war.
"Ready?" she asked.
Feya placed her hands on either side of the first clay cylinder and closed her eyes. The mana channels carved into its surface began to glow, faintly at first, then with a steady blue-white light that cast sharp shadows across the workbench. The air around Feya's fingers shimmered as environmental mana flowed into the channels, guided by her intent, compressed into the clay vessel like a river being forced through a pipe.
The process took three minutes. When Feya lifted her hands, the glow faded from the surface, but Sera could feel the charge inside, a faint vibration against her fingertips when she picked the cylinder up. Potential energy, stored and waiting.
"How many can you charge tonight?" Sera asked.
"Six," Feya said. "Maybe eight if I rest between each one."
"Then we make eight."
They worked in silence. The forge fire popped and settled. Somewhere outside, a patrol's footsteps crossed the cobblestones and faded. The night was ordinary. The work was not.
Across the temple district, in the small room beside the healing ward that had become hers through the quiet process of no one telling her to leave, Neh'ya sat at the window and looked out over Mieua.
The city was settling into its nighttime rhythm. Lamps dimmed in the residential quarter as families found their beds. The Twin Sisters Temple glowed with the steady light of the oil lamps that burned at all hours, their flames maintained by priests who tended them in rotating shifts throughout the night.
One of those flames flickered.
It was a small thing. The kind of movement that wind caused when it found gaps in old stonework. But there was no wind tonight. The air hung still and heavy, and the temple's lamps had not wavered in months.
The flame steadied.
Neh'ya watched it from her window with an expression that held something deeper than a child's idle curiosity. Her eyes reflected the distant lamplight in a way that made it difficult to tell where the reflection ended and something else began.
Kyn had followed her after dinner. He did this most evenings now, toddling after her with the persistent attachment of a three-year-old who had decided that this person belonged in his world and would not be persuaded otherwise. She had carried him back to the family quarters and sat with him until he fell asleep, his small hand wrapped around two of her fingers with a grip that suggested he intended to keep her there permanently.
She had stayed longer than necessary. Watching him breathe. Counting the rise and fall of his chest with the attention of someone for whom every sleeping child represented something worth the cost of everything.
When she finally returned to her own room, she had passed through the temple corridor. The night priest had been tending the altar lamps, a quiet man whose devotion expressed itself through maintenance rather than prayer. He had not seen her pass. But as she walked by, the oil lamps on either side of the corridor burned a fraction brighter, their flames leaning toward her as though drawn by something invisible. The priest paused, frowned, checked the oil levels, and finding them adequate, returned to his work.
Neh'ya had not noticed. Or if she had, she gave no sign.
She sat at her window now, her knees drawn to her chest, her dark eyes watching the city that the Seventh Saint had built. The city that was about to go to war.
Below, in the forge, two girls were building something that would change the shape of that war forever. Above, in his study, a man from another world stared at a map and counted the days until everything he had planned would be tested against reality.
And in a small room between the temple and the healing ward, a girl who had saved children in burning forests sat perfectly still and watched the oil lamps burn with the patience of someone who understood fire in ways that no mortal should.
The first night of the war had begun.
No one in Mieua slept well.
But they slept knowing that tomorrow, the work would continue. And the day after that. And the day after that. For three years, if the plan held. For longer, if it did not.
The lamps in the Twin Sisters Temple burned on, steady and bright, their flames untouched by wind or time or the particular weight of a future that pressed against the present like a hand against a door.
Somewhere, far to the south, an empire prepared to conquer the world.
Here, in the mountains, a kingdom prepared to stop them.