In a quaint ancient town that once served as a crucial military fortress during the Jin Dynasty, there stood a millennium-old locust tree, giving the town its name—Locust Town. There was a rich merchant, whose family had been running a large grain business for generations, making a fortune. But his family was plagued by some inexplicable things. Every night, some strange phenomena would happen in their house, such as tiles falling from the sky, breaking the windows and roofs, or hearing some ghost-like sounds, crying in the rooms, or seeing some places where no one was suddenly bursting into flames, burning the furniture and clothes. These things lasted for more than a year, and their prayers for help were useless, so they had to sell the house and move away. Subsequent tenants faced the same disturbances and quickly moved away. Henceforth, nobody dared to inhabit the house. There was an old scholar who did not believe these things, and bought the house at a very low price, and chose an auspicious day to move in, and nothing happened, and he also told others that it was his virtue that suppressed the demons. Later, some thieves came to his door and quarreled with him, and people learned that the changes in the house over the years were all done by the thieves he bribed at night, and they were not real ghosts. A sage once said: “Ghosts are nothing but illusions.” The old scholar’s actions can be called true ghosts.