Monstrous Whispers

Your protagonist begins to hear voices, whispers that no one else hears, leading them to suspect they are being haunted.

What happens when terror can only be heard by one person and no one else? What challenges would your protagonist face when they try convincing others of these terrifying whispers? Could these whispers be warnings or threats? Is it an external entity haunting or the character’s mind creating the horror? This prompt could take a psychological turn, manifesting fear through mental and emotion-based horror.