Sleep Test in a Haunted House: Colleagues Who Don't Abide by Taboos Are All Dead

I am a professional haunted house sleep tester, and my salary is paid daily, two thousand a night. Three years into the business, nothing happened. Until I received an order from an old house in western Hunan, and at the same time, a handwritten "Test Sleeping Rules" popped up on my phone. Rule 1: Do not open your eyes when hearing any sound after midnight. Rule 2: If you feel someone blowing into your ear, immediately recite a folk mantra silently. Rule 3: Before dawn, no matter what happens, you must never say "I'm leaving". My colleagues scoffed at these taboos, and something went wrong that night. It wasn't until they died one by one that people discovered that my grandfather was once the most famous Feng Shui master in all parts of the country. These so-called "haunted house taboos" were all leftover from my grandfather's tricks.