The Aquifer Solution
In which our protagonist builds the continental water regulation system, and discovers that some bugs are not bugs at all.
The dams took six weeks to build.
It was, in the language of Kenji's old job, the biggest project he had ever managed. Seven kingdoms, hundreds of mages, thousands of workers, all coordinated through the crystal network, all building infrastructure to manage a flood that was still happening. The work was exhausting. The work was also, he realized, exactly the kind of work that the world had been avoiding for centuries. The kind of work that was too big, too expensive, too hard. The kind of work that you only did when the alternative was the end of the world.
The dams were not just dams. They were also reservoirs, channels, and (in two cases) underground aquifers that were being refilled by the flood waters. The system was designed to absorb the excess water, store it, and release it slowly over the next year, in a controlled way, through the channels that led back to the ocean.
It was, Kenji thought, exactly the kind of system that Oakhaven should have had. The aquifer he had built in S2E1 was a tiny version of this. Now he was building the big version. The continent-sized version. The "any sufficiently well-defined problem is solvable" version.
Lian was running the spell calibration. She had grown into the role, becoming the person who designed the magic infrastructure, while Kenji designed the physical infrastructure. The two systems were layered, the magic on top of the stone, the stone on top of the water, the water on top of the world's mana.
They worked together for sixteen hours a day, every day, for six weeks. They did not see each other as apprentice and master anymore. They saw each other as colleagues, two engineers working on the same project, the way it had been since the iron mines in S2E3.
Princess Calla arrived in the third week.
She came south, with a small retinue, to see the dams. She had been watching the work over the crystal network, and she had decided to see it in person. She was, Kenji saw when she arrived, exactly as she had been on the crystal network: sharp-eyed, calm-voiced, with the kind of presence that comes from being raised to lead.
"The dams are impressive," she said, on a tour of the largest one. "But they will not hold forever. The flood is still rising. The next wave will be bigger."
"I know," Kenji said. "The dams are not the final solution. They are the first step. The final solution is the magical thermostat."
"What is the magical thermostat?"
"It is a system that regulates the world's climate. It is a spell that adjusts the mana flow in the atmosphere, smoothing out the extremes, preventing the storms from forming, preventing the floods from happening. It is the same principle as the dams, applied to the air instead of the water."
"Can you build it?"
"Yes. But not here. The thermostat has to be built at the source. The mana flow is regulated from the top of the world, from the ice caps. The ice caps are where the world's mana enters the atmosphere. If I can build the thermostat at the source, I can regulate the whole system."
"The ice caps are a thousand kilometers north. Through the corruption zone. With a small army of cultists in the way."
"Yes."
"That is a suicide mission."
"It is an expedition. I am taking Lian, Pip, and fifty of the best mages from the alliance. We are going to the ice caps. We are going to build the thermostat. We are going to debug the world's climate."
Princess Calla looked at him for a long moment. Then she said: "I am coming with you."
"Your Highness?"
"I am the heir to the northern kingdom. The corruption is in my kingdom. The floods are killing my people. I am not going to sit in a palace while someone else fixes my problems."
"Your father would not approve."
"My father is old. He is tired. He has given me authority to make decisions on his behalf. I have decided."
She looked at Elara, who was standing behind Kenji, watching. Elara said: "If she comes, I come. And if I come, the rest of the bodyguard comes. We are not letting the Royal Advisor walk into a corruption zone without a proper escort."
Kenji looked at the two women. He looked at Lian, who was standing a few steps away, taking notes. He looked at Pip, who was orbiting his head, pulsing, the pulse feeling like: "We are going on a trip."
Kenji sent back: "Yeah. We are going on a trip."
The expedition was planned. The route was mapped. The supplies were gathered. The mages were briefed. The bodyguard was assembled. The crystal network was set up to coordinate in real time, with the Council of Kings watching, with the continent watching, with the world watching.
The debugging was about to leave the continent.
# WORLD.md (updated)
## Status
- Dams: built, 6 weeks, 7 kingdoms coordinated
- Flood: managed, not stopped, but controlled
- Magical thermostat: needs to be built at the ice caps
- Expedition: planned, Kenji + Lian + Pip + 50 mages + Calla + Elara + bodyguard
- Route: through the corruption zone, 1000 km north
## Lessons
- The biggest projects are the ones you only do when the alternative is the end
- Lian is no longer the apprentice. She is a colleague.
- Some problems require you to leave the continent to fix them.
- A princess who decides to come on a suicide mission is a princess worth knowing.