Skip to content
CreatePricing

The Obsidian Kelp Wreck

The river canyon hides a skeleton of oak and illicit secrets.

6 roomsShipwreckeasy

Wedged at a sharp tilt within a limestone canyon, this air-pocketed shipwreck serves as a damp hideout for river pirates. Silty water laps at the floorboards, and the scent of river mud is omnipresent.

The air is humid and smells of wet wood and decaying fish. Lighting is provided by dim, oil-leaking lanterns that cast long, flickering shadows. Every footstep is accompanied by the sound of dripping water and the groan of the hull against rock.

☠ Threat

Captain Marla Silt-Eye oversees the River Gladius thieves with an iron fist. She has rigged portions of the ship to collapse on intruders and maintains a network of informants on the river above. The primary danger is her knowledge of the ship's precarious balance, which she uses to her tactical advantage during combat.

History

The Obsidian Kelp was once a notorious smuggling vessel until it was chased into the Gladius Silt Flats during a high-tide storm. It wedged itself deep in the canyon walls where the receding waters trapped it forever. The River Gladius thieves discovered the wreck years ago and converted its air-pocketed chambers into a base for raiding passing barges.

Encounter Table

CR
1/8CR
River Bandit Lookoutx1

A thief returning from the upper canyon with fresh supplies.

1/4CR
Giant Leechx1d4

Bloated parasites that drop from the ceiling to feed on the warm-blooded.

Rumours & Whispers

1

The Obsidian Kelp was carrying a cursed sapphire that causes the river to rise.

2

Marla Silt-Eye can see through the eyes of the rats inside her ship.

3

The River Gladius thieves have a secret deal with the local tax collector.

4

A hidden lever on the ship can cause the whole wreck to slide further into the canyon.

Quest Hooks

1
The Stolen LedgerRecovery

Quest giver: Barris the Merchant

A local river merchant's ledger was stolen, containing proof of his innocence in a tax fraud case.

200 gp and a favor

2
Clear the FlatsExtermination

Quest giver: Guard Captain Hallow

The town council wants the River Gladius thieves removed to restore safety to the silt trade routes.

100 gp bounty per officer captured

Corridor Notes

Corridor between room 0 and room 2

A rhythmic thumping sound coming from the canyon walls, caused by water pressure.

Corridor between room 2 and room 4

A line of rusted iron spikes driven into the floor to provide grip on the tilt.

Visual sheet

Turn The Obsidian Kelp Wreck into a sheet

A high-res, share-ready sheet you can post or print.