Core Truth

The campaign begins as a bridge disaster, becomes a smuggling investigation, then expands into a sea expedition and finally a Darklands descent.

Full Adventure Summary

The Castrovin Sea is vast, storm-scoured, and treacherous. Most sailors avoid the deeper waters and the jagged volcanic maze known as the Razored Labyrinth.

The ancient Bridge of Kridorfrost stands as the only crossing of the Noyrus River for a hundred miles. When a sinkhole opens beneath the bridge’s lower supports, workers vanish into flooded tunnels and the town’s fragile prosperity begins to crumble.

The earliest problems appear practical: missing workers, a collapsing bridge, strange obsidian fragments, and rumors of organized smugglers using the tunnels.

Soon the investigation points south to Kridorn, where pirate brokers and salvage crews know more than they admit, and to the sea-stack trading post of Citadel Allatro.

What appears to be a local accident becomes something larger: a Darklands-connected conspiracy using the Razored Labyrinth as a surface breach.

By mid-campaign, the party leaves the river behind and ventures across the Castrovin Sea through sea-stack mazes, submerged ruins, and lost Ninshabur.

They uncover evidence of an older power beneath the Castrovin basin, one tied to the ancient cyclopean empire and possibly to Spawn-like horrors beneath the earth.

The final arc descends beneath the Razored Labyrinth into dry volcanic caverns and Darklands tunnels. The heroes must decide whether to seal the breach, sabotage the spawning chambers, or expose the conspiracy before abyssal forces gain a permanent foothold.

Major Story Arcs

Adventure Structure Overview

Faction Quick Reference

Random Encounters by Region