The laboratory building of Qingcheng No. 13 Middle School lights up at night.
The teacher on duty said it was due to aging wiring, the cleaning lady said it was caused by rats, and the principal said anyone who spread rumors again would be fired.
Only boilermaker Wang Jianshe knew - it was the dead singing.
Forty-three-year-old Wang Jianshe graduated from junior high school, was divorced for eight years, and worked in school for six years. No one knew that there were three torn ancient books of Qimen under his pillow, and no one knew that the seven-star evil-suppressing formation he set up in the laboratory building every night had blocked the school from disaster for six years.
Until Li Sisi, a freshman in high school, fainted while singing "Farewell" in the women's restroom on the fourth floor. Her pupils turned gray-green and she repeatedly chanted: "It's coming."
Wang Jianshe knew that the formation could not hold on any longer.
He broke into the physics laboratory that had been sealed for fifteen years and saw seven girls facing the wall. The leader is Lin Xiao, who disappeared fifteen years ago and is still an unsolved case. There is a line of small words engraved on her hair rope: "Teacher Zhang, the head teacher, said this is a secret between us."
Underground are mass graves during the Anti-Japanese War, and three thousand innocent souls are ready to move. On the ground are the bones of seven missing girls, filled with resentment. And that well-dressed head teacher has disappeared from the world for fifteen years and is still at large.
Wang Jianshe originally wanted to pretend to be a coward all his life and burn the boiler until he gets old. But the girl with the pink hair tie said two words to him - "Help me."
He picked up the claw hammer, bit the tip of his tongue, and stepped into the basement.
Chinese teacher Cheng Xiwei handed him a file that had been dusty for fifteen years: "You are a boiler burner, why do you care about this matter?"
