https://www.dmsguild.com/en/product/583192/mike-s-free-encounter-133-vampire-mimic

Designed for a party of 3–6 characters of levels 8 to 12, this adventure introduces a delightfully terrifying and unexpected boss monster. It works as a standalone encounter or fits in as an investigation mission within the Consortium series.

A Desperate Decision

Late in the civil war of Merak, the elite forest rangers known as the Henrell Scouts built a fortress atop a hill over an old dungeon to defend their forested home. Driven to desperation, their leader Captain Amiloup freed Guttanguis, an ancient spirit of blood and thirst bound by druids centuries earlier. The spirit turned the captain and his scouts into vampires, who successfully drove away their enemies.

However, their victory was short-lived. Forces from the faction led by Oros the Shadowed diverted a nearby river to surround the castle with a moat of running water, trapping the vampires inside before staking Amiloup. But Amiloup’s coffin had been replaced by a mimic. Instead of dissipating, the spirit of Guttanguis merged with the mimic, creating Mussup—the Vampire Mimic. Mussup fed upon its fellow mimics, transforming them into loyal vampire spawn mimics.

Decades later, loggers have returned to the forests. One logging camp was attacked by wolves sent to gather victims for the vampires. The adventuring party Milo’s Marauders was hired to deal with the wolf attacks but vanished into the woods. Now, they serve Mussup as vampire spawn. The Adventurers’ Guild needs the party to find the missing adventurers.

What’s Inside?

Custom Monsters & NPCs: Challenge your players with vampires

• • Mussup (CR 13 Boss): This undead shapechanger combines aspects of a mimic and a vampire.
  • Vampire Spawn Mimics (CR 5): Disguised as ordinary dungeon items, these predatory shapechangers wait to grapple unwary intruders and feast upon them.
  • The Fallen Marauders (CR 5 each): Milo’s Marauders are undead adversaries who retain some of their class features.
    • Milo Underborough: A halfling rogue with deadly Sneak Attacks.
    • Kelles: A plate-armored fighter with Action Surge.
    • Licunda: A former cleric of life who still retains spellcasting.
    • Melassa: A methodical wizard who uses her spider climb to hide in trees.

Four Battle Maps:The Staging Camp: A riverbound camp featuring a warehouse, docks, and stables.

The Abandoned Lumber Camp: Cold campfires and scattered gear

The Castle Ruins: A shattered, decaying structure encircled by a barrier of running water.

The Dungeon: A subterranean structure housing spawn , mimics, and Mussup.

Specifications:

• Recommended Party: 3–6 players of levels 8–12.
• Setting: Easily dropped into any deep forest or abandoned frontier ruins in your campaign setting.
• Format: Modular adventure that can stand alone or be part of the Consortium Series

Will the party triumph or become a mimic meal?