Four hundred and seventy-two days after Luo Xia's departure, the underground base in New Mexico had expanded a hundredfold. What had once been an underground base covering just over a hundred thousand square kilometers had become a true mechanical city.
Its web of mines was dense and intricately interconnected. An ordinary person would lose their sense of direction after just a few minutes. Only the secondary-intelligence robots controlled by Sarah could dart through them, carrying ore to the conveyor belts before sending it to the Foundry Core, where it was turned into only the most basic metal materials.
It was a vast mechanical city, astonishing in scale, and a complete, precision-engineered machine.
Every few minutes, a fully formed humanoid machine rolled off the production line. Once infused with a secondary-intelligence program, it needed only a small amount of energy to activate and become an elite robot soldier.
Inside the underground base's warehouses, row upon row of mechanical soldiers marched in orderly formation, then silently extinguished the lights in their eyes.
The underground base could manufacture mechanical soldiers at an incredible pace, but the robots consumed far too much energy in their day-to-day operations. Even the small nuclear power plant Sarah had built underground was struggling to keep up.
After all, the underground base held more than just mechanical soldiers. It also housed more advanced combat units, and the output of a small nuclear power plant like this could sustain, at most, a single war.
A war no one would ever know about.
Sarah ran a hand through her long, blood-red hair and asked Violet over a remote link, "How are the mechanical soldiers being deployed in the United States?"
Violet was at the AllSpark Company. On receiving Sarah's inquiry, she hurriedly replied, "Miss Sarah, ten thousand mechanical soldiers have already