A ready-to-run supernatural mystery for Monster of the Week

Something is wrong in Ashville.

The annual Harvest Festival should be a night of games, food, music, and community. Instead, a missing-person case, a suspicious death, and a series of disturbing discoveries draw the Hunters into a mystery that has been hidden for generations.

At the centre of it all is a corn maze.

But this isn’t an ordinary corn maze.

A Halloween RPG Adventure Without the Prep Overload

Planning a horror one-shot shouldn’t mean spending hours creating NPCs, inventing clues, working out monster abilities, and figuring out how to get your players from one scene to the next.

The Malevolent Maze is designed to get your Monster of the Week game moving quickly, giving the Keeper a complete supernatural mystery to run with minimal preparation.

Read the adventure, gather your Hunters, and get ready to investigate Ashville.

Less Prep. More Play.

A Supernatural Mystery in a Small Town

The Hunters arrive in Ashville during its annual Harvest Festival, only to discover that something much darker is happening behind the cheerful celebrations.

What begins as an investigation gradually reveals:

• A disturbing murder

• Missing children

• Strange activity surrounding the local historical society

• Secrets buried in Ashville’s past

• A family connected to the town’s supernatural history

• A centuries-old bargain

• A mysterious corn maze hiding something far more dangerous than lost visitors

The clues aren’t simply leading somewhere.

They’re leading into the maze.

What’s Waiting Inside?

Once the Hunters enter the maze, the investigation becomes a fight for survival.

The paths don’t behave normally. The Hunters may become separated, familiar surroundings become unsettling, and the deeper they travel, the more obvious it becomes that the maze itself is part of the mystery.

The Hunters will need to uncover what happened to the missing children, understand the history behind the supernatural threat, and confront whatever is waiting at the centre.

The mystery gives you plenty of opportunities for investigation, roleplaying, tense exploration, and supernatural horror before the final confrontation.

Designed for Monster of the Week

If your group enjoys Monster of the Week mysteries, The Malevolent Maze gives you a self-contained adventure that can be dropped into your campaign or played as a standalone session.

It’s particularly suited to groups looking for:

Halloween RPG adventures
A creepy seasonal adventure for an October game night.

Horror one-shots
A contained mystery with a clear central threat and escalating danger.

Supernatural investigation
Follow the clues, uncover the history, and work out what is really happening in Ashville.

Low-prep RPG sessions
A structured adventure that saves the Keeper from having to build everything from scratch.

Small-town horror
A seemingly ordinary community with something very wrong underneath the surface.

Everything You Need to Run the Mystery

You shouldn’t have to create an entire adventure before your players can start playing.

The Malevolent Maze provides the material needed to run the investigation, including the adventure framework, locations, characters, supernatural threats, clues, and the final confrontation.

That means you can spend your preparation time familiarising yourself with the mystery rather than building one from the ground up.

Spend Less Time Preparing. Spend More Time Playing.

Your players don’t need to know what is waiting at the heart of the maze.

Let them investigate.

Let them follow the clues.

Let them make questionable decisions.

And when they finally discover what Ashville has been hiding, they’ll have to decide what they’re willing to risk to stop it.

Is Your Monster of the Week Group Ready?

The festival is underway.

The investigation has begun.

The maze is waiting.

Can your Hunters uncover Ashville’s secret before they become part of it?

Get The Malevolent Maze

A Monster of the Week horror one-shot for Keepers looking for a creepy supernatural mystery without adding hours of preparation to their gaming schedule.

Less Prep. More Play.

The Malevolent Maze is a third-party adventure for Monster of the Week. Monster of the Week is created by Michael Sands and published by Evil Hat Productions.