This is an ancient Chinese version of the Cthulhu Investigation script.
It describes a mysterious disappearance in a remote town called Shancheng Town. A monk from out of town and a police officer from a large county help investigate.
All clues point to the pagoda on the top of the mountain.
They must rescue the residents of the mountain town before the ancient evil god comes to the world.
Concept: Ancient Chinese version of the Cthulhu Incident