Skeleton Keys and Forgotten Doors

Craft a tale about discovering an old skeleton key that only works on specific doors on specified days in October.

This prompt allows you to sink into the unknown and the unexpected. What doors does the key open? What secrets or realities lie behind them? How do they alter the protagonist’s life? By exploring such themes as revelation, fear, curiosity, and transformation, this prompt will push writers to create a story imbued with the heart of the October mystery.