Guancheng is surrounded by mountains, coal in the west, oil in the east, iron in the south and aluminum in the north. Heavy-duty railways, construction of chemical bases, establishment of smart factories... Eliminate mining disasters, restore the environment, clean energy, invest in public welfare... From an ignorant little guy to a business giant, while realizing his dreams, he has walked out of a different life. The new book "Hidden Earth" ": In the face of repeated invasions by the earthlings, he just wants to hide his identity, avoid danger, avoid danger, hide his cards, wear a disguise, and escape well. There are three sets of plans and ten sets of equipment.