After the mysterious death of his father, Cheng Gu, a graduate student in the history department, inherited a "Seventh Observer's Eye" that can see through the truth of the world. As his left eye gradually mutates, he finds himself involved in a supernatural war that spans six decades. The pursuit by the Secret Service, the secret of the "Threshold Gate" left behind by his father, and the nameless beings lurking in the cracks of reality will all force him to make the ultimate choice: become a sacrifice to maintain reality, or tear apart this carefully woven world of lies? A dark fantasy that combines Cthulhu horror and science fiction suspense.
