Cover of The Rapture of Madness

The Rapture of Madness

A Twisted Level 4 Adventure of Science and Sanity Lost
by Infinite Initiative

They wanted perfection.
They got him instead.

Beneath the sea lies a sunken research city—once a marvel of arcane progress, now a decaying labyrinth of broken glass, failed experiments, and whispers in the dark. At its heart, a mad scientist clings to his vision, bending corpses and constructs to his will.

The players must brave an abandoned lighthouse, activate a long-dormant portal, and descend into the abyssal halls of a drowned facility. But something stirs in the tanks… and it’s not alone.

Inside the Adventure:

A puzzle-filled lighthouse and a cinematic octopus encounter

A non-linear underwater dungeon teeming with mutated horrors

Tactical environments: flickering labs, crumbling windows, and flooded chambers

A final boss fight against a deranged scientist and his unstable Abomination

Includes new stat blocks and a unique magic item: the Cloak of Protection (as a warded lab coat)

This is a dark, atmospheric one-shot perfect for groups who enjoy horror, puzzles, and morally twisted villains.

Part of the Thirsty Tiger Tales series by Infinite Initiative.

Published By
DMs Guild
Publication Year
2025
Handouts?
No
Battle Mats?
Yes
Includes Characters?
No
Level
Levels 3–4
Soloable?
No
Part Of
Boss Monsters and Villains
Common Monsters
Notable Items
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