Sure, here are a few horror-themed prompts to get your creativity flowing:

1. Whispering Shadows: In an old, abandoned asylum, shadows seem to whisper secrets to those who dare enter. One night, a group of friends decides to investigate, only to find the whispers growing louder and more insistent, revealing dark truths about each of them.
2. The Forgotten Village: Deep in a forest, there’s a village that doesn’t appear on any map. Anyone who enters either never returns or comes back changed. A journalist looking for a big story decides to uncover the mystery behind this forgotten village.
3. Haunted Technology: A new phone app claims to show glimpses of the afterlife. As people become addicted, they start seeing ghostly apparitions in real life, leading to terrifying consequences for a tech-savvy teenager who can’t resist trying it out.
4. Cursed Manuscript: An aspiring author finds an old, unpublished manuscript in a second-hand bookstore. As they begin to read and transcribe it, strange and horrifying events from the story start manifesting in their real life.
5. Eternal Night: A small town is plunged into an unending night. As the days stretch into weeks without sunlight, the townspeople start to change in disturbing ways, and a group of survivors must uncover the cause before they too succumb to the darkness.
6. The Last Broadcast: A late-night radio host starts receiving eerie calls from listeners who claim to be broadcasting from the afterlife. As the calls become more frequent and personal, the host realizes they might be next.
7. Mirror, Mirror: A family moves into a house with an ancient, ornate mirror. Soon, they realize the mirror is a gateway to a parallel dimension where malevolent doppelgängers reside, plotting to switch places with them.
8. The Collector: A young woman inherits her grandmother’s house, filled with an extensive collection of dolls. She soon discovers that the dolls are vessels for restless spirits, and they’re eager to escape.
9. The Plague Doctor’s Mask: In a historic city, a student discovers an old plague doctor’s mask in the university archives. When they put it on, they start having visions of a plague-ridden past and see the sinister figure of a plague doctor stalking them in the present.
10. The Wishing Tree: A tree in the center of town is rumored to grant wishes. However, each wish comes with a terrible price. Desperate townsfolk, unaware of the consequences, start making wishes, leading to a series of horrifying events.

These prompts should help spark some chilling stories or scenarios for your horror-themed writing or projects.