The moment the train pushed back and plunged into the heart of the shadow, the carriage shuddered violently.
It was a tremor unlike the previous two. As the world outside the windows was stained a uniform gray, the air inside grew heavy, and the seats groaned under an unseen pressure.
"It’s fighting back."
Asahi half-rose from his seat, his hand already gripping the hilt of his greatsword. He was poised to strike, but there was no physical enemy to cut. The train lurched again. The screech of wheels skidding against the tracks filled the air.
They weren't moving. The wheels were simply spinning in place.
"The shadow is thick."
Kuon looked down at the Catalog. The golden threads within were flickering with a frantic intensity.
"Something is wrong. The shadow should be getting thinner the further north we go. But this... this particular shadow is dense."
"Dense?"
"It’s been thickened intentionally. Someone is using this shadow as a wall."
The train jolted again. This time, the entire body of the carriage came to a dead stop for a heartbeat, and momentum threw everyone forward. Koyoi nearly slid off his seat, but Asahi’s arm was there to catch him.
At his waist, the pouch turned cold. Koyoi gasped in surprise. Throughout their entire journey, the pouch had always been warm; this was the first time it had ever felt chilled. Inside, Shizuku was shrinking back. It was terrified.
"Are you scared?" Koyoi whispered to the pouch.
Shizuku did not pulse in response. It had gone rigid.
"This shadow rejects names," Kuon said, his voice dropping low, carrying the weight of an Observer’s revelation. "Normally, the heart of a shadow blurs information into a sea of gray. But this is different. It is designed to bar the passage of anyone who possesses a name. It is a barricade."
"Who built it?" Asahi’s voice was a low growl.
"I don't know. But this wall is protecting the North. There is something up there... something that refuses to let anything in."
The train groaned forward. The wheels finally caught the tracks, and the carriage began to move sluggishly. The shadow’s resistance continued, but the train pressed on, inch by inch. Outside the window, the gray was undulating. Black streaks raced through the gloom.
The shadow wasn't uniform; it was composed of distinct layers. Sheets of pale gray and deep black were stacked against each other, and the train pierced through them one by one.
"How many layers?" Asahi asked.
Kuon counted with his prosthetic eye. "Seven. A seven-fold wall."
They broke through the first. The gray faded, then deepened again. The second.
As they passed the third and fourth, warmth finally bled back into the pouch. A faint, steady pulse returned. The fifth. The sixth.
The shaking subsided. The moment they cleared the seventh layer, the world outside the window suddenly flooded with light. It wasn't gray anymore.
"I can see the sky," Koyoi said, pressing his face to the glass.
The fog had lifted. It wasn't entirely gone, but the density had thinned significantly. Beyond it stretched a vast, dark sky. Points of light floated in the heavens. They weren't like the "Falling Names" they had seen in Hoshifuri-machi. These weren't falling; they were suspended.
Names, drifting in the sky.
"They aren't frozen," Kuon’s voice was raspy. "The Freezing hasn't reached this place. The seven-fold wall... it was built to block the power of the Stasis."
Kuon looked down at the Catalog. The golden threads were glowing more intensely than ever before. Even without looking at the pages, the light from the threads was enough to bathe the entire carriage in gold.
"It’s close," Kuon whispered. "The Original is close."
The train began to slow. Asahi looked out the window. The lights of a station appeared in the distance. They weren't the cold, white lights of the south. They were yellow. Warm.
They looked like the lights of the southern towns, but the hue felt far more ancient. Koyoi’s pouch gave a slow, deep thrum. It was a pulse of relief—the breath of someone nearing a familiar place at the end of a long journey.
The doors opened. The scent of soil, wood, and the distant murmur of water drifted in.