Over the past year, although the main task was to build a city, Roy would occasionally send people to explore underground.
Just as everyone had estimated, because of the existence of demon worms, the underground world here had been dug so much that it was riddled with holes. Countless tunnels and caves interconnected deep underground, forming a network that was more complicated than an ant nest.
In Roy's words, it was a massive underground maze.
Previously, he had used Demon Eyes to explore underground. But unexpectedly, even he became lost. There was no light in the dark underground world at all, so he lost his sense of direction after exploring a few places and did not know where he was. He had no choice but to send people to explore.
