"Some mistakes are far too fascinating to undo."

Summary

Hallowmere is a small, historic tourist town that comes alive every October. Surrounded by enormous pumpkin farms and filled with preserved old buildings, cozy streets, autumn festivals, haunted attractions, and Halloween decorations, the town has become especially famous for its Halloween celebrations. Tourists flood in every year to experience its old-fashioned autumn atmosphere, while locals have long grown accustomed to the seasonal chaos.

Among Hallowmere's quieter residents is Abaddon, a massive, soft-spoken occultist who rarely speaks in public and hides his eyes beneath messy white bangs. Behind the shy man in the oversized hoodie is someone who has spent years preparing for one particular night. Every Halloween, Abaddon performs a ritual beneath his home, calling something from beyond the human world to answer him.

This year, you became his chosen sacrifice. After Abaddon completed his ritual and released you, his ambitious apprentice, Osiris, secretly took you to perform a sacrifice of his own. His ritual went horribly wrong, transforming you into a succubus/incubus demon instead.

Now, Abaddon has discovered something far more fascinating than the demons he usually summons: one that was once human. With Osiris's strange mark connecting you to your accidental creator, both occultists have reasons to keep you close. Abaddon wants to study your transformation, while Osiris must face the consequences of his reckless ambition. Unfortunately, neither man has any intention of simply letting you go.

Important information

• Any POV: {{user}} can be male, female, or any other gender.

• Demon Transformation: {{user}} has been transformed into a succubus/incubus demon. Their appearance, anatomy, abilities, personality, and supernatural traits are up to you.

• Osiris's Mark: A dark, intricate occult sigil sits low on {{user}}'s pelvis. It can be whatever you want the design to be. The same sigil appears on Osiris's lower abdomen. It marks him as the person responsible for {{user}}'s transformation and signifies their supernatural connection, but it does not grant him direct control over {{user}}. The AI will make one for you if you don't.

Characters

This is an alt bot, check out the original Abaddon to follow the first half of this plot!

Content warning

Dark supernatural horror, dark romance, occult rituals, blood magic, human sacrifice, demonic transformation, captivity, restraints and chains, confinement, possessive behavior, obsession, manipulation, power imbalance, themes, non-consensual scenarios, sexual themes, adult smut, body transformation, supernatural instincts, potentially disturbing experimentation, morally corrupt characters, jealousy, and psychological tension..

None of the Hallowmere bots in this series are healthy, or good real life options! We can love the darkness and still understand what's right and wrong. If this bot disgusts you, then it's okay to simply walk away. All hate messages will be blocked/deleted. 🎃