There were grooves underground as well. The moment Ruri descended, they lit up, blue chakra flowing through them. He followed the glowing grooves all the way into a room.
A strange apparatus stood in the room. All the grooves converged, then split into ten paths connected to the bases of stone discs on the ground. Above each base was a hexagonal crystal that flickered with blue light as chakra flowed into it through the grooves.
Ruri stepped forward and tapped it. The crystal was incredibly hard, clearly no ordinary material. He could sense the enormous amount of chakra being transmitted into it, yet even such a massive quantity had not filled the crystal.
"What exactly is this?" Ruri circled the crystal, studying it. "Some kind of technological creation?"
He tried shifting the stone disc base, only to find that it was integrated with the ground. The key was still the crystal.
"Could this be Angkor Fortress's power source?" Ruri guessed. Since all the chakra converged here, this thing was definitely related to chakra. The only things in the fortress that required chakra should have been the Chakra Energy Cannons and the main power source. But the Chakra Energy Cannons had already been destroyed by Kirin. There was a good chance this crystal was Angkor Fortress's main power source!
Should he just destroy these grooves? If chakra could not be fed into the crystal, Angkor Fortress would lose its power source.
After thinking it over, Ruri decided against it. Once the Sky Ninja were dealt with, Angkor Fortress would surely be taken for their own use. There was only one specialist in the village, Seimei, and there was no telling whether he could repair it if Ruri damaged it carelessly. If Angkor Fortress lost its power source and fell, it might