Lin entered the old room alone, the air was cold and heavy, and dust covered every corner. A mysterious notebook was in front of her, and a doll's eyes were shining as if they were watching her silently. Every page in the notebook bore frightening words: "Don't stay here until sunset." Lin's heart beat quickly, fear mingling with curiosity. The whole room was silent, except for mysterious whispers that aroused terror, and the shadows moved with the dim rays of the sun. Every moment brought her closer to discovering the school's secret, but also closer to danger, as if the place itself was trying to test her courage. ---