Stone Turtle Calamity

While fishing in the back mountains, Qingshan and his sister-in-law accidentally catch a mysterious stone turtle. Elder Yi and Grandma urgently warn them that the turtle controls the village's water supply and must not be moved. However, determined to improve their living conditions, Qingshan insists on taking the turtle home to smash it open, revealing a dark green crystal ball. Strange events follow: the turtle 'bleeds' and crawls covered in red algae, the courtyard wall collapses leaking 'bloody water', the water level in the back mountains drops sharply, the river turns muddy and floats dead fish, and the village well water becomes contaminated, causing poultry to die mysteriously.