Bird's Whistle

Outside the bustling city filled with tall buildings, there is a high mountain named Cangwu Mountain. There is a lake named Cangli Lake on the top of the mountain. One night after a strong wind, the lake overflowed and a desert island appeared in the middle of the lake. A nearby resident named Ergouzi accidentally caught a strange bird on the desert island and sold it for a high price of 880,000 to a businessman who loved to collect rare birds and animals. After that, the villagers followed the trend but found nothing. The matter had been forgotten, but one day the three brothers of the Chen family, a villager, took their children to the island again but never returned. The village chief led people to search for them, but all of them disappeared inexplicably. In the end, the villagers chose to call the police, and Yi Zigui, Lu Jie and others began their investigation to trace the source. Is it a man-made disaster? Is it a natural disaster? Is it a monster? Let's be detectives together...