In boarding schools across Nigeria, students whisper about a spirit you never see—only hear. Known as Madam Koi Koi, she’s said to roam empty hallways late at night, announcing her presence with the slow, echoing koi… koi… of high heels on concrete floors. Those who look back risk paralysis, madness—or worse. Some stories claim she targets rule-breakers; others say she appears before tragedy strikes. Lights off. Dorm silent. Then footsteps. Closer. 👠👁️ If you heard heels outside your door at m