The deep waters of the Hellmouth Gulf have long concealed ancient mysteries, both wondrous and terrible. But these secrets have been submerged for too long, and the remote coastal village of Blackcove has accidentally awoken a slumbering horror from a bygone age. Strange creatures now venture from beneath the waves to steal townsfolk away in the dark of night.
No-one knows why, but many of the villagers of Greenmist have been going insane. Not only that, but something has caused the surrounding environment to transform into fetid swamps. Heroes from far and wide have gone into the swamps to destroy the source of the madness, but none have returned. The truth is that the psychic whispers of an aboleth have invaded the minds of Greenmist's people. The creature called Seedooloo has been using forbidden magic, mad science, and the strange ability of his kuo-toan worshipers to grant himself the power to drive the surface world to insanity. The Call of Seedooloo includes monsters found in Mordenkainen's Tome of Foes.
A pall hangs over the frontier town of Wellspring, casting this once-vibrant place into corruption and death. Strange people stalk the streets and unexplained murders occur each night. Nagging fears that more horrors will spill forth from the Kadagast Mountains instill a pervasive paranoia within the townsfolk. Suspicious people watch their neighbors, and temple attendance has never been higher. Folk keep to themselves, hiding in their homes. They avoid darkened streets, lock their doors when night falls, and shutter their windows to close out the screams and shouts echoing in the dark. If the grim threats pressing the town are not stopped, the fl ame of Wellspring might very well flicker out.
Ten years ago, zombies arose from the foamy sea to take vengeance against the inhabitants of Firewatch Island. Now, they have risen again, just in time to welcome the visiting player characters! Will your heroes manage to escape the island with their lives (to say nothing of their delicious brains)? The PCs have to clear the island and learn its secrets, then defend it against an undead attack and then travel to the bottom of the ocean to seal Dagon's Maw! Pgs. 19-50 Updated to 5th Edition in Ghosts of Saltmarsh
A 20-page adventure for OSE Save the wizard! A sunken cathedral on a quiet mountain lake hides a long forgotten temple to Mathanoga, God of Knowledge and wizardry. Abandoned by Man for centuries , but protected by the legend of man-eating fishmen lurking in it. Or until a few weeks ago the young wizad Elric embarked on its expedition. With help from the accademy of Greykeep he found the temple and began to explore it, hoping to uncover its ancient magical secrets. Now the wizard is missing and the accademy has put a bounty on its head: its weight in silver to whoever will find him and bring him home alive and well. Find magical secrets! Deep inside the temple are stashed many magical items, all sacred to the fishmen dwelling there, all worth dying for. Save Elric and the treasures will be yours! The Sunken Temple is an expert level Old School Essentials adventure for a party of 1-4 players. Perfect for a one shot or a random encounter in an hex crawl.
Children and a cleric have been kidnapped from a small coastal town by undead creatures who crawled out of the sea. Defend the Captain's Folly Tavern, investigate the mystery, swim through underwater caverns, and fight the monstrous denizens of the deep in order to save the kidnapped civilians! This adventure includes: 4 New Monsters, 4 New Magic Items, A Seafaring Skill Challenge, & Complications for an Underwater Chase Encounter!
With land trade threatened, the city of Melvaunt is relying on sea trade to get goods into and out of the city. An island rises out of the Moonsea just outside of Melvaunt Harbor, and initial exploration indicates the island is a threat. The origins and nature of the island must be ascertained before trade is shut down completely. The characters explore a mysterious island and help 'living souls' disrupt a ritual being performed by cultists of Cyric. Part Three of the Misaligned Trilogy
Stories of misfortune are often exaggerated, especially when they have been retold many times. For that reason, most people aren't taking seriously the claim that a sea monster living along the coast is eating whole ships full of sailors and swallowing entire families. But there's no denying a few facts -- the town of Lochfell is losing its citizens to a sea monster (one that walks on water no less), someone is stealing that same town's dead, and ships are beginning to choose other ports for unloading their goods. Such a scenario could doom the residents of the small port town to either a monster's gullet or the poorhouse. No one seems to know whether the town's two ongoing problems are connected, but the sea monster never leaves behind a corpse to bury. Is it collecting bodies for some dark purpose? Or did some more powerful evil creature create the sea monster to do its dirty work? Someone in Lochfell knows the answer, and it's up to the PCs to find it out. Lochfell’s Secret is a short D&D adventure for four 15th level player characters (PCs). The story is set in and around the port town of Lochfell. You can place the action in any section of your campaign world where a coastal town on a bay might exist. If there is a small town that the PCs visited in a past adventure but haven’t returned to in quite a while, so much the better. As always, feel free to adapt the material presented here as you see fit to make it work with your campaign.
Despite the adventurers’ best efforts, more creatures joined under Bad Fruul’s banner. No longer content to simply attack caravans or isolated homesteads, the hill giant warlord descends upon Parnast at the head of a great force of humanoids. SEER warns the adventurers (directly now) in time to rally the town and prepare defenses, but a heroic effort is required to break the siege.
The Fate of Faerûn Lies in Shadowy Darkness! Daggerdale is reeling from a sudden series of murderous drow raids. As a grave threat to the entire surface world develops in the war-torn dark elf city of Maerimydra, intrepid heroes must discover its source and destroy it, if they can.
Long hidden away in remote vaults and guarded by powerful wards, the ancient Seven Swords of Sin have been stolen and brought together again for a terrible cause. Seven Swords of Sin is a lethal adventure that pits players against a vile enchantress, Tirana, in a trap-laden and monster-guarded dungeon. Only the brave (and perhaps foolish) can survive Tirana's lair and rescue the fabled Seven Swords of Sin from her heinous plot to unlock their deadly powers.
Set in the Radiant Citadel, this is the perfect supplement to your "Journeys Through the Radiant Citadel" campaign, allowing adventurers to explore the ancient city and discover more about its people and places. From the Trade Discal to the Preserve of the Ancients, delve deeper into the secrets of this bastion of wonder and hope. Included in this supplement you’ll find: 10 one-session encounters for characters ranging from levels 2–13 A hand-drawn dungeon map for a new area in the Citadel 3 VTT maps 5 original stat blocks 2 new magic items A printer-friendly version with only essential graphics and text And a host of memorable NPCs! Easily drop an encounter into your existing campaign or build out a new adventure entirely. You’ll find a broad range of themes to help your table bring to life this ancient city in the heart of the Deep Ethereal Plane.
In a cavern lying beneath the surface of the ocean is a series of trials awaiting any heroes who think they are worthy. Come meet the ancient tortoise who wants nothing other than to try out his riddles, partake in the bullywug tournament with such exciting events as Wig-Wag-Woe, and face down the wrath of a mindflayer. Contains multiple uniques puzzles and riddles to give your players a challenge beyond combat.
The tritons have arrested the keeper of Skyhorn Lighthouse for unleashing vile, bug-like abominations into the sea. When a lone triton comes to the characters and asks their help in exonerating the keeper, will the heroes rise to the challenge and confront the dangers lurking in the deep? The Corruption of Skyhorn Lighthouse is a 5-7 hour adventure for 8th-level characters. You can run The Corruption of Skyhorn Lighthouse as a standalone adventure or as a follow-up to The Secrets of Skyhorn Lighthouse, a free 5th-level adventure downloaded over 100,000 times with 350+ five-star reviews! Inside the The Corruption of Skyhorn Lighthouse, you'll find: -Three new monsters that prowl the ocean depths -A goblin submarine, a darkmantle sea captain, and a marid with a pet starfish grove -The Arcane Library's signature format to make running the adventure effortless -Combat cards for monsters, PCs, and special treasure -Gorgeous maps designed for easy use with Virtual Table Tops
"Temple of the Deep Ones" is the lair of a group of deep ones and their god, suitable for four or five 7th-level characters. This adventure can be finished in one session. Ship captains report that a mysterious island has surfaced in the middle of a heavily trafficked trade route. Worse, ships that venture too close to the island are assaulted by a terrible creature and its servants. The island is disrupting trade throughout this part of the world, and several ships have already been lost. Unbeknownst to those that know of the place, the island rises at the will of Shar-Ngolyeth, a long-lost deity also known as That Which Lurks Beneath the Waves. The island is populated by a cult of deep ones and the beasts they have subjugated in the name of their dark god. The creature responsible for sinking ships is an aspect of Shar-Ngolyeth, a kraken. It is not meant for combat encounters; it's largely a plot device in this encounter.
Centuries ago, a powerful wizard locked himself in his inner sanctum to dedicate his life to the pursuit of knowledge. His discoveries and magic remain sealed inside to this very day. Solve his riddle and unravel the fate of the wizard Maalzinabar and the sinister evil lurking in the depths. A 2-3 hour adventure for 5th-12th level characters