On the eighth day, villagers discovered that the river worker had died on the riverbank. His entire upper body was swollen like a ball, and his head, limbs, and feet were like buds hanging from a meatball. After an autopsy by the coroner, it was determined that this phenomenon was caused by the river worker's heart inexplicably growing larger, distorting his body.,Lin Yu's hand holding the case file began to tremble.,The more Lin Yu looked, the more confused he became. He couldn't find any common points among the cases. The only thing they had in common was that all the victims died seven days later.。