DM Overview
The Truth: The ghost ship *Weeping Sister* was sent by the Ratbound Choir, a cult led by Corvane Ashgrove. They unleashed a magical plague carried by rats to weaken Nostramus for a takeover. The king's quarantine is playing into their hands, trapping victims inside. Corvane seeks to become the Ratbound Bishop, ruling a city of the faithful and the dead.
Villain Plans: Corvane operates from the ghost ship, directing lieutenants Mirelle Vantt (harbor smuggler) and Doctor Orlan Fesk (plague spreader). Sera Quill, the King's Inquisitor, enforces the quarantine brutally, unaware she is a pawn. The cult's goal: complete a ritual in the sunken shrine beneath the city, then rise to claim Nostramus.
Clue Flow: The party finds rat-carved tokens, a ship's log, and testimony from survivors. Each scene reveals a piece: the ship's origin, the cult's hideout, the ritual's location. The final clues point to the ghost ship and the lighthouse cave.
Failure States: If the party ignores the plague, the city falls in 10 days. If they alert the Inquisitor too early, she arrests them. If they fail to stop the ritual, the plague becomes airborne and kills everyone. If they kill Corvane without destroying the ritual focus, the plague persists.
Pacing: Act I (levels 1-4) is investigation in the city. Act II (5-8) is the undercity. Act III (9-12) is the harbor and ship. Each act has 3-4 key locations with one main scene each. Side quests add depth.
Magic Items (9): *Rat-Bane Amulet* (uncommon, advantage vs disease), *Cloak of the Harbor* (uncommon, water breathing), *Plague Doctor's Mask* (rare, immunity to disease), *Ship's Log of the Weeping Sister* (rare, reveals cult plans), *Corvane's Ratbone Staff* (very rare, +2 spell focus), *Mirelle's Smuggler's Compass* (uncommon, finds hidden routes), *Fesk's Scalpel* (rare, +1 dagger, poison), *Quill's Seal of Office* (uncommon, advantage on Intimidation), *Lighthouse Flame* (very rare, casts *daylight* and *protection from evil and good*).
Main Quest Line: 1. Investigate the plague. 2. Find the cult's undercity lair. 3. Disrupt the ritual. 4. Board the ghost ship. 5. Defeat Corvane and destroy the plague focus.
Encounters: Use SRD monsters: rats, giant rats, swarms of rats, cultists, guards, scouts, veterans, priests, knights. Villains use character sheets.