It's a Strange Thing

Today, the school arranged a trip. Zheng Lin and his sister Zheng Xing went together. They encountered strange things from the beginning. When they arrived at the destination, it was an ancient city. According to the school's arrangement, they stayed in a special apartment. In the apartment, the brother and sister met a strange child. How did she get in? What did she mean? Brother and sister move into the dormitory, what will happen tonight? Has anyone else encountered such strange things? What will happen next. . . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.