Stepping off the train, the air was cold despite it being noon.
Two suns hung in the sky. One was white, the other a pale gold. Both hung at the exact same height, casting shadows in two different directions.
"A counterfeit sun," Kuon said, narrowing his eyes. "It’s mimicking the original light source to disrupt the shadows. A classic technique to throw off observations."
Asahi drove his sword into the ground to measure the shadows. The blade’s shadow split in two, the primary and secondary flickering and swapping places with every gust of wind.
"I can’t get a clean read," Asahi muttered. "The path is lost."
Koyoi pressed her pouch against her chest. The rhythm of the Droplet was steady, but occasionally, a powerful pulse surged through it. She couldn't tell which light it was reacting to.
In the center of the town stood a sundial. However, the gnomon cast no shadow; only the face of the dial was black, as if charred.
"The real sun is being hidden," Kuon observed. "The structure is designed to make the counterfeits clash, forcing us to lose our bearings."
Asahi glared at the sky. "Then we just have to bring one of them down."
"Even if you do, there’s no guarantee the other is the real one."
Koyoi knelt by the edge of the sundial. Fine cracks ran across the face, and the old engravings were faded. When she lowered the temperature of the Droplet onto it, a single character emerged from the gaps in the cracks.
Truth.
Then, on the opposite side, another character appeared.
Falsehood.
"...It’s not a simple choice," Koyoi whispered. "Lining up 'Truth' and 'Falsehood' and making us choose is the trap itself."
Kuon nodded. "Don't look for the standard in the sky. Re-establish it from the ground."
The three made their way to a canal on the outskirts of town. The sky was reflected in the water's surface. The stronger the false light, the more unnatural the reflection should become.
Reaching the canal, Koyoi peered in. The white sun barely trembled on the water. The golden sun’s outline, however, lagged slightly behind the ripples.
"That one. That's the fake."
Asahi moved instantly. He raised his sword high and swung diagonally toward the golden sun. The blade never reached the sky, yet a ribbon of light warped along the arc of his strike.
Simultaneously, Kuon tore a page from his Catalog and cast it into the wind. The scrap of paper was sucked into the silhouette of the golden sun, vanishing without burning.
"I’ve caught the node. Koyoi, now!"
Koyoi synced her pulse with the Droplet and released a wave of temperature from her palm. The reflection in the canal straightened for a fraction of a second, and the golden sun shuddered.
In the next moment, the golden sun shattered into fine shards of light, scattering across the sky.
Only the white sun remained. The shadows returned to a single line, and the outlines of the town snapped into focus.
Asahi sheathed his sword and let out a breath. "Finally, the ground feels like ground again."
Kuon looked back at the sundial. "The falsehood is gone for now, but it will recur. Unless we cut off the source of the manipulation."
Koyoi nodded. While the false sun had been shining, someone’s judgment must have been warped over and over again.
Even so, they now knew the procedure for reclaiming their bearings. Even if the light split in two again, they wouldn't lose their way.
On the slope leading back to the train, Asahi looked behind him. A single white sun remained in the sky.
"...It’s quiet."
Koyoi nodded. "When a noisy lie disappears, you realize just how vast silence can be."
Kuon kept his pace steady. "Silence isn't the end. It's the margin that precedes the next observation."
Koyoi took those words to heart. A margin wasn't something to fear or something to fill. It was the time granted to choose again.
What they preserved in this stage was not reckless momentum, but a method. Kuon first separated what was confirmed from what was not. Koyoi logged the distinction in her ledger. Asahi kept his sword sheathed until the order was set, prioritizing retreat routes and sightlines. Following that sequence alone visibly reduced clashes born from false assumptions.