Lin Mo, an ordinary student, was forced to inherit the mysterious "Silk Book of Mountains and Seas" and became the "keykeeper" who guarded the balance of heaven and earth for generations. However, the ancient contract is collapsing, the terrifying beasts in "The Classic of Mountains and Seas" are awakening one after another in modern cities, and a world-ending crisis is quietly approaching.
In order to pursue the truth, Lin Mo formed a team with agent Su Xiao, Wuxian successor A Pu, and doctor Chen Qi to go deep into Yunmengze, break into the Red Gold Hill, and explore the Star Burial Valley. They discovered that the biggest threat did not come from ancient beasts, but the terrifying conspiracy hidden within the government.
Holding the double-edged sword that communicates with all spirits, and surrounded by companions whose enemies are hard to distinguish from friends, Lin Mo must make a choice in the darkest moment: Should he sacrifice himself to repair the Old Testament, or take risks to create a new world? The ultimate adventure concerning the survival of all things begins here.
