Secrets of the Devil City

Ten years ago, geologist Qin Zhenbang went to Jiangjun Gobi, Huoshaoshan, Dinhonggou and Yinniugou in Qitai County. He mysteriously disappeared in Devil City, leaving only a incomplete diary. Ten years later, his son Qin Feng, an outdoor leader, assembled a seven-member expedition team and entered the Yadan landform known as the "Land of Crying Ghosts." There are no ghosts and gods here, only the strange sounds of wind erosion, the spiral blue light in the night sky and unknown vibrations deep underground, dinosaur fossils, petrified wood, meteorites, underground cavities, and prehistoric remains. As the exploration progresses, the team encounters sandstorms and quicksand traps. Suspicion among members gradually arises, and the shadow of an insider quietly looms over them. While Qin Feng is searching for the truth about his father, he also has to lead everyone to survive in a desperate situation and uncover the scientific truth behind the thousand-year vision in the Devil City, as well as a buried secret of prehistoric civilization.