Stopping an undersea war wasn't in your contract. The seas will boil with war, and you're going to be right in the middle of it. Pgs. 34-47

The shipping lanes south of Candlekeep have been disrupted. Unknown to anyone, an incredible alliance between a terran and a waterfolk tribe has caused the lamp at Gloomhaze Point lamptower to be extinguished. Merchant ships are being wrecked and plundered. The story unfolds in the nation of Amn. Adventurers will face a formidable kobold tribe that knows how to maximize its tactics, its smaller-than-human size tunnels, and an abundance of unique traps. The bloodthirsty sahaugin won’t be defeated without the adventurers taking a dive.

A terrible thunderstorm batters a seaside port, yet thunder and lightning are nothing compared to what is about to be unleashed by the diabolic crew of the Rabid Dawn. Casters with access to control water, control weather, or control winds will prove especially valuable, as will characters with strong Swim skills. The adventure is best suited to a predominantly good or neutral aligned party of PC's. Strike on the Rabid Dawn takes place in the port city of Hardby (Dungeon #109). As most of the action takes place within a lighthouse and on a ship at sea, however, any suitable port from your campaign makes an appropriate substitution for Hardby. Pgs. 12-32

Minotaurs are fond of mazes, but rarely build them. Hex is an architect, engineer, and overlord all in one. A self-declared "Minotaur Lord", he is the only one of his kind known to exist. His lair is all he has, a gargantuan, ever-expanding labyrinth in which he keeps the spoils of his many conquests in youth. Now an ancient veteran, he works tirelessly to keep his hoard safe and to entice new adventurers to test themselves against his gauntlet of lethal traps. Tyrants and Hellions is a Dungeon Master's aide, containing fifteen villains complete with schemes, lairs, backstories, and everything else you need to drop them into your own 5th Edition Dungeons & Dragons campaign. Within its 400 pages you'll also find the methods, both mechanical and thematic, used to create villains that spark the imaginations of your players. Hex is one of these villains, and his adventure takes up 33 pages (pg 110-143). Published by 2CGaming

After your ship crashed onto a small island you and a few other survivors quickly discover you're not entirely alone. There are creatures slithering in a nearby cave, taking everything they can from the wreckage as they hunt for something. With no other way out, you'll have to trek through the Sahuagin camp, rescue any other survivors and find other means of escaping the island before all is lost.

Time is running out for the members of the Ivory Scimitar as they strive to overcome the latest challenges of the Infernal Machine and Mithelvarn's Labyrinth. With the discovery of a secret entrance into the 5th level of the dungeon, the party must now enter uncharted waters with an entirely new type of environment and monstrous threats. Can they withstand these new creation of the Machine, and will they finally breach the 6th seal and gain entry into the last level of the legendary dungeon and save all of Roslof Keep? This adventure is formatted to both 1E & 5E gaming rules. Also available in PDF.

An unusual pirate outpost on a small island is causing big trouble for the residents of coastal towns in more ways than one. A Minotaur clan have recruited outlaws and formed an alliance with Sahuagin in order to establish a pirate outpost on a formerly abandoned island and have begun raiding up and down the coast...

For centuries, the Three Kingdoms have warred endlessly. The river flowing through it holds so many dead on its banks that the locals call it the River of Blood. But now, a new peril rises. With all three armies tucked into their winter camps, patrols and outposts on all sides report ambushes with alarming frequency - those who survive to make their reports, that is. None can say just who attacked them, however, for the assailants appear from the fog or in the middle of a snowstorm, hit hard and fast, then disappear. Arden, Duke Regent of Tyndall, fears that the dead have risen to haunt the living. Is he right?

You hear rumours of an unclaimed wizard's tower, a worthy prize for any practitioner of the arcane arts! Do you have what it takes to face its challenges and claim it as your own? This is a one-to-one adventure designed for one player of the wizard class and one DM.

This adventure works best after going through the original trilogy (Death, Terror, and Madness in Freeport). After exposing the madness and corruption of the previous Sea Lord, a succession crisis is upon Freeport. There are no heirs to the seat of power, leading the Captains' Council to overturn the Law of Succession. But opening up succession plunges the city into chaos as various factions vy for the title. The PCs will need to survive riots and secret plots to make sure the right man (or woman) ends up with the job.

Stormy seas rock your vessel, tossing her about like a toy in the jaws of a hound. Thunder rolls in the distance. Then, an arc of lightning splits the sky, and the sound like an exploding fireball all but bursts your eardrums. Your mainmast, struck by lightning, burns, splinters, and topples onto the deck like a felled oak. The last thing you hear is the cracking of wood as the deck explodes into splinters, and the ship is torn asunder. All goes black. You awaken in shackles, half-submerged in water, and surrounded by salmon-pink coral. You survived, but what fate awaits you now? The sound of soggy footsteps echo down the hallway. A creature approaches with an answer. This week’s encounter is Coral Colosseum, a combat encounter in which the characters must prove themselves as worthy gladiators to escape the clutches of a ruthless sahuagin baron. This encounter can serve as a follow-up to Encounter of the Week: Sharkfin Shipwreck, or as a stand-alone mini-adventure. It could also serve as an introduction to Ghosts of Saltmarsh, which releases on May 21st, 2019.

"The Aboleth's Grotto" is a nihileth lair suitable for four 10th-level characters. The adventure can be completed in one session. The small town of Springwell harbors a secret that almost nobody knows about, and those who do conveniently ignore: it sights right over an unoccupied settlement of the deep caverns of the underworld.

After an Andoren village is razed by the Hydra's Fang, a renegade Chelish slaver-ship, outrage threatens the stability of both nations. You and your fellow Pathfinders are sent to capture the Fang before the Inner Sea is pitched into political frenzy.

The Sea of Fallen Stars connects the eastern and western sides of Faerûn. Many nations that border shorelines along its vast expanse also maintain major navies and trade fleets. A plethora of creatures and humanoid races typically found in the ocean depths live there, including sahuagin, sea elves, merfolk, and locathah. This is a story about what happens when a normally peaceful species is pushed to the point of open conflict. As elemental forces threaten the safety of the nearby locathah communities, heroes rise from among their number to strike back and defend their homes and families. Locathah Rising is a DUNGEONS & DRAGONS adventure designed for 9th-level characters.

STILL WATERS Sushi or Steak? Freshwater sahuagin!? Landlocked for hundreds of years, this colony of sahuagin have adapted to live in fresh water and flourished in secret, at least until recently, with the aid of a mysterious patron. Now, they need the party’s help to retrieve something precious to them… This adventure was originally made for a West Marches campaign, but is designed to easily fit into any standard fantasy setting. There are many areas to insert plot hooks for your own world or campaign. A 4-hour adventure for 6th-8th level characters by ALAN TUCKER

A hideous hag threatens to corrupt everything it can, including a young bronze dragon who protects this stretch of coastline. The heroes must stop Dread Shelan at all costs, lest the entire area come to ruin. Can the brave adventurers defeat Dread Shelan and her pet sahuagin? This package (adventure, maps, etc. within) forms a complete module for use with Dungeons & Dragons ® 5th Edition rules. It is especially designed for Dungeon Masters to initiate play with a minimum of preparation, and to invoke that OSR look and feel you remember from the original Saltmarsh back in the 80s. In addition to descriptive and situational material, this module also includes special informational sections giving background history and legends, listings of possible monsters and treasures and how to place them, a list of adventuring characters, tips on various aspects of play for the Dungeon Master, and helpful advice for starting players. Old School Look and Feel! Instructions given for scaling the encounters for levels 5 to 10.

The Merfolk Queen asks adventurers to help retrieve merfolk roe (eggs) from a sahuagin raiding party lead by a sahuagin priestess, with custom water-based magic items as reward. The adventure is for three to four 5th level adventurers at a hard difficulty. Pgs. 137-145

Long unoccupied, the pyramid on Sorcerer’s Isle now flows with strange magical energy, warping creatures and the landscape around it. The Cult of the Dragon and Red Wizards of Thay have taken notice, and it’s up to you to keep whatever power dwells there out of their hands. An adventure for 5th-10th level characters.

Vaylek the reclusive hydromancer did not often leave his seaside tower. Now he is missing. What strange and magical secrets lie within? What deadly perils and grotesque creatures might call that tower home? The mysteries of his tower await the brave and resourceful! This 5e ocean-themed adventure is intended for player levels 1-3 and contains: 6 levels of maps and exploration A floor filled with aquariums containing new and wonderous sea creatures A secret lab 6 new monsters--including Frankenlobster, Saltwater ooze, Sea gobblers, and Sharkdogs! Wandering monster tables and descriptions of what the monsters are doing New magic items An overland map An optional adventure setting

The Submerged Spire of Sarpedon the Shaper lies to the west of the Isle of the Dismemberer. On the northwestern shore of this island, crumbling steps spill from the shore directly into the sea. There, a seaweed choked stone path can be glimpsed winding down into the depths. At low tide, a quarter mile along the path, a lone onion dome may be seen poking through the waves. In the twilight of the sorcerer lords, The Submerged Spire was the jewel of the Shattered Isles. Within his submarine redoubt, Sarpedon penetrated ever deeper into the organic mysteries. Now, its for- lorn dome the roost of seagulls, its secrets slumber beneath the waves.