The Deep Earth Code

As human civilization continued to develop and advance, the human population grew rapidly, leaving Earth with ever less room to spare. To make the most of the available space, humanity had already pushed development on the surface to its limits, so it turned its attention to the deeper underground. While searching for his missing father, Lin Gang follows the clues layer by layer and uncovers a shocking conspiracy hidden beyond the bounds of civilization. To protect his family and humanity's living space, he embarks on a fantastical journey.