Chapter 357: The City That Prepared

The staircase went much deeper than Kai expected.

At first, the walls were made of the same dark stone as the ruins above, but the further they went, the more metal appeared between the stones. Thin lines of blue light ran along both sides, and every few meters, another ancient symbol lit up as they passed it.

Lily kept turning her head from one wall to the other. "This isn’t just a staircase."

Sera glanced at her. "It’s a staircase."

"No, look at how it’s built."

Kai looked. The stairs were wide enough for several people to walk side by side, with rails running along both walls and small lights built into the stone.

Every few dozen meters, there was an alcove carved into the wall, some holding what looked like old equipment and others completely empty.

Gabriel ran her hand along the wall as she walked. "None of this is here by accident."

"What do you mean?" Sera asked.

"Everything has a purpose."

"That’s what I’ve been noticing," Lily said.

The staircase finally opened into an underground corridor so large that Kai stopped at the bottom step.

It stretched further than they could see, with passages branching off in every direction, some leading left or right and others sloping down even deeper, each one marked with its own symbols.

Lily stared. "This whole thing is under the city."

"Yes," Gabriel said. "We’ve reached parts of it through other entrances, but never this one."

"How deep does it go?"

"We don’t know. Every time we explore one section, we find three more."

Kai looked down the corridor, and something about it felt familiar. It wasn’t the design that reminded him of anything, but the purpose behind it. "These aren’t tunnels. They’re routes."

Lily looked at him. "Routes?"

"Different paths leading to different parts of the city."

Her eyes widened. "Redundant transportation."

"Exactly."

Gabriel walked to one of the entrances, where several ancient platforms had been built into the floor. "You’re right." She pointed from passage to passage as she spoke. "Transportation, emergency access, supply routes, and evacuation."

Sera’s expression changed. "Evacuation?"

Nobody answered her right away.

The first chamber they entered was filled with rows of massive containers. Most were empty, but a few still held some kind of dried material, and Lily leaned over the nearest one. "What is this?"

"Storage," Gabriel said.

Kai looked around at the hundreds of containers, maybe thousands. "Food?"

Gabriel nodded. "Enough to feed a very large population for months."

The next chamber was even larger, with enormous tanks lining the walls and pipes running across the ceiling toward old machinery in the center. Lily studied it for a moment. "Water."

After that came a room full of what looked like medical equipment, and then a long hall of sleeping quarters. There were hundreds of small rooms, each with a bed, a storage compartment, and a small emergency light still glowing faintly beside the door.

Kai walked slowly between them. "These are shelters."

Sera looked down the rows. "How many people could fit down here?"

"Thousands," Gabriel said.

The deeper they went, the clearer the pattern became. Past the shelters, they found power stations, communication chambers, and entire underground roads, and Lily stopped making comments. She just kept looking.

In the center of the next chamber stood a large circular device lined with hundreds of small crystal compartments, and several of them were still glowing.

Lily stepped closer. "This is a mana storage system. There are at least three hundred reserves in it."

Sera frowned. "Why would one city need that much mana?"

"Backup," Kai said.

Lily nodded and pointed toward the far side of the chamber, where a second system stood, and beyond it a third, and then a fourth.

Kai stared at them. "Redundant power."

"Multiple independent systems," Gabriel said quietly.

Sera shook her head. "They really didn’t trust anything."

"That’s not it," Kai said, and everyone looked at him. "They trusted their systems. They just didn’t trust that any single system would survive."

Lily looked around the chamber again, and Kai could see the idea settling into place for her too. If one road was destroyed, there was another.

If one power source failed, the next would take over, and if the surface became too dangerous, the people could move underground where food, water, and shelter were already waiting.

Even with the guardians they had fought above, Aegis hadn’t been built around attacking anything. It had been built around surviving something.

Kai stopped walking. The giant wall, the gates, the shelters, and the evacuation routes all connected in his head at once, and he turned to Gabriel. "They were preparing."

Gabriel stared at him. "For what?"

Kai looked up toward the surface. "For a Disaster."

His voice echoed through the chamber, and for several seconds, nobody said anything.

"You’re right," Lily finally said.

"The walls face outward," Kai continued. "They weren’t built to fight inside the city."

"They were built to keep something out," Lily said.

Sera looked back toward the shelter rooms. "And all of this down here..."

"Was for surviving if the surface became uninhabitable," Kai said.

Gabriel let out a slow breath. "That’s what we believe."

Lily turned to her. "You already suspected this?"

"Yes."

"Why didn’t you tell us?"

"Because we weren’t certain." Gabriel looked around the chamber. "We’ve found signs of preparation before, but we never understood what they were preparing for."

Kai walked to the far wall, where a massive map had been carved into the stone. It showed the continent, or possibly something even larger, with several regions marked by symbols and others that looked like they had been deliberately scraped away.

Lily stepped up beside him. "That’s not a map of the city."

"It shows the whole region," Kai said.

"We’ve never been able to translate all of it," Gabriel said.

Lily traced a line of symbols with her eyes. "There are patterns that repeat. I can’t read them, but some of these symbols only appear next to defensive structures."

Kai pointed to a group of markings far outside the city. "And those?"

Lily shook her head. "Unknown."

Kai didn’t say anything, but the map bothered him. Whatever Aegis had been preparing for, the preparation hadn’t stopped at the city walls. It looked like they had been getting ready for something that could reach the entire continent.

"Wait," Sera said from across the room. She was pointing at the floor. "There are markings here."

A series of lines ran across the floor toward another corridor, and Lily followed them with her eyes. "That’s an evacuation route."

"It leads to the eastern side of the city," Gabriel said.

Sera looked at her. "How many evacuation routes are there?"

Gabriel hesitated. "We’ve identified twelve so far."

"Twelve?"

Kai looked down the corridor. "Why twelve?"

Lily shook her head. "We don’t know."

Kai turned to Gabriel. "What happened to the people?"

Her expression grew serious. "We don’t know."

"Did they evacuate?"

"We found no evidence of it."

"Did they die here?"

"There are no bodies."

"Then where did they go?"

Gabriel shook her head. "That’s one of the biggest mysteries surrounding Aegis."

Kai walked back through the shelter rooms. Old blankets were still folded neatly beside some of the beds, and nothing looked broken or overturned. It didn’t look like a place that had been abandoned after a battle. It looked like everyone had simply stood up and left.

Lily picked up a small object from one of the shelves and turned it over in her hands. It was a child’s toy.

"People lived here," she said.

"Families," Sera said quietly.

For some reason, the toy hit Kai harder than any of the weapons had. Aegis hadn’t just been a fortress. Children had grown up in these halls, and families had eaten together in these shelters while preparing for something they believed was coming, and then every one of them had vanished.

Lily set the toy back exactly where she had found it. "Then why did they fail?"

Nobody answered her. Gabriel had no answer to give, Sera stood with her arms crossed, and even Lily only stared at the silent machines around them. The city had been built with every redundancy a civilization could imagine, and it was still empty.

"They prepared for the Disaster," Kai finally said.

Gabriel nodded slowly. "But they still disappeared."

Kai looked at the map on the wall. "Which means either they prepared for the wrong thing..."

Lily looked at him. "Or?"

His eyes hardened. "Or it wasn’t enough."

Deep beneath them, something began to hum. One of the mana systems activated, sending blue light racing through the walls, and a second system came online behind it, then a third.

Gabriel looked around. "What’s happening?"

Lily stared at the glowing machinery. "I don’t know."

The lights along the corridor were turning on one at a time, but not randomly. They were following a path that led deeper into the ruins.

"They’re showing us somewhere," Sera said.

Kai looked down the glowing corridor. "Maybe."

Lily took a step forward. "Then we should follow it."

Gabriel looked at Kai, and he nodded.

They left the silent shelters behind them and followed the lights deeper into the waking city. Aegis had been built to survive a Disaster, and it had still disappeared, which left Kai with a question far worse than any he had brought with him.