The sea has many perils. Are the treasures of a sunken pirate ship worth the risk? Arkos Seatamer, a privateer and the sole survivor of a shipwreck has gathered a new crew. He's returning to the wreck to recover the body of his closest friend, Devek Harpwind, for a proper burial. Arkos had rammed the pirate vessel 'Striking Shadow' in combat, shattering its hull. He leapt aboard the sinking ship to take the pirate queen as a prisoner. Shortly after, a sudden storm arose, so violent that it sunk his ship as well. This isn't the whole story. The pirate queen wore a cursed gold armband, shaped like a coiled eel. The sight of the band made Arkos mad with greed and he moved to slay her to take it. Devek tried to intervene but Arkos killed his friend in rage. With his dying breaths Devek laid a horrible curse upon Arkos to become a were-eel each night. The PCs are hired to accompany Arkos and his crew to the wreckage and recover Devek's body from the wreck, along with the armband he still lusts for. Pgs. 18-35

Far from shore, in the cold depths of the ocean, lies a legendary whirlpool, five fathoms wide, hungry for sailors, their ships, and their goods. By its side sits a man-eating monster, many-headed and hungry for any who escape the maelstrom. But beneath these perils are the ruins of a palace, rumored to be filled with treasure beyond imagining and, maybe, a history of secrets lost to time beneath the waves. In the midst of a storm, the party’s ship is caught in a strong current. The whirlpool traps them inside of the ruins of an underwater palace, which was once home to a group of nymphs and now is the last vestige of the story of how the nymph Scylla was transformed into the infamous peril she is today. Pgs. 165-171

Deep beneath the surface of a lake flourishing with aquatic life is the Temple of Pure Water. Within its walls your players will encounter dangerous aquatic flora, a deadly submerged temple, a sea dragon statue with power lurking within, and even a rapid downhill boat ride with sharks. Water in small doses is an elixir of life, but it large enough quantities your players may be left in over their heads as they make their way through this underwater adventure.

Venzor Trench is set for a group of characters hired to deliver a magical item between two warring countries. The sea voyage becomes tumultuous and the ship goes down. With the mission unfilled the players utilize the magic item to survive on the bottom of the sea floor and continue to trek their way towards completing their misson through the legendary Venzor Trench!

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

Evil lurks beneath the ocean! For years it has slumbered, but now it rises once again, threatening to wash over the surface world like a monstrous wave. Only a handful of stalwarts stand between the nefarious schemes of the deep and a world drowned in sorrows, but first they must navigate a wizard’s sanctum, a magical prison, and the most unusual dungeon they’ve ever faced! Can they stem the tide in time or will they lose themselves forever to the Sea Change curse?

"There's this huge fish in my mine," says the gnome, "and you've got one week to get rid of it." A little fishing trip - with you as the bait! A gnomish mine at the bottom of Whitelake is being terrorized by a giant pike. The party has a week to find a way to capture or kill the beast. However, once they do, another monstrous fish attacks. The party eventually finds a tribe of merrow has claimed a cave on the north shore and are releasing the fish to keep the gnomes away. Pgs. 8-15, & 64

Note: This is a sequel to Out of Body, Out of Mind. The legend of the realm of Tirna'cel is well known. Once remembered for its power-mongering warlords, homunculi-wielding sorcerers, and archfiends from the deepest pits of the Abyss, Tirna'cel has become a powerful and welcoming land over the last 600 years, due in no small part to the efforts of the warlord Tirna'gael, a member of the land's founding nobility. But your party knows the truth. You ventured into the tomb of Tirna'gael some six months ago, and therein discovered that the fallen warlord was actually little more than his brethren: a petty, avaricious power-monger. Possessed by a rival force which also desired the kingdom - a rare incorporeal demon called a nescent, which inhabited his body and augmented his already incredible power to unforeseen levels - Tirna'gael sought to overthrow the ancient warlords only to replace them. Through Tirna'gael's augmented body, the nescent overwhelmed and eliminated the other warlords, eventually dominating the realm along. But before it could consolidate its rule and throw Tirna'cel into an even darker age, the secret of its power was discovered by the paladins of Garadon, a virtuous cell of justice and light. The paladins lured Tirna'gael into the center of his own fortress and trapped him there within a powerful anti magic field. His body withered and died but the nescent remained dormant, waiting for its chance for revenge. During your visit to Tirna'gael's fortress-tomb six months ago, you accidentally released the nescent from its prison. That enemy has since been vanquished - at least for the time being - but the memory of your pitched battle against it still lingers as you approach the original chapter house of the Order of Garadon. You have been summoned.

A band of shipwrecked adventurers awake to twilight on an uncharted jungle island to the Northwest of the Nalanthars with amnesia, little do they know the amnesia is recurrent at the completion of each long rest until an ancient curse powered by an incomplete Mythallar is lifted.

Operating as secret agents for the Lords of Waterdeep, a promising lead takes you deep into the world of the Xanathar, but what will it take for you to return?

A Twisted Level 4 Adventure of Science and Sanity Lost by Infinite Initiative They wanted perfection. They got him instead. Beneath the sea lies a sunken research city—once a marvel of arcane progress, now a decaying labyrinth of broken glass, failed experiments, and whispers in the dark. At its heart, a mad scientist clings to his vision, bending corpses and constructs to his will. The players must brave an abandoned lighthouse, activate a long-dormant portal, and descend into the abyssal halls of a drowned facility. But something stirs in the tanks… and it’s not alone. Inside the Adventure: A puzzle-filled lighthouse and a cinematic octopus encounter A non-linear underwater dungeon teeming with mutated horrors Tactical environments: flickering labs, crumbling windows, and flooded chambers A final boss fight against a deranged scientist and his unstable Abomination Includes new stat blocks and a unique magic item: the Cloak of Protection (as a warded lab coat) This is a dark, atmospheric one-shot perfect for groups who enjoy horror, puzzles, and morally twisted villains. Part of the Thirsty Tiger Tales series by Infinite Initiative.

Mare Vinceret has kept the underwater city of Conatha thriving for centuries. Deep within the Greyspace lurks a force so strong that it could impede their progress toward peace. It dwells in a place beyond where they would ever choose to go, filled with dark aquatic life and a menacing presence that no one could match. Juliya Alastor, the leader of Mare Vinceret, sends her best to dispose of the threat known only as Biandra, the Hag of Conatha (sea hag). The Hag of Conatha seeks to fix what Mare Vinceret has done to the beautiful land that she sees as corruption in disguise, then live in peace. Biandra has taken their forgotten structure and made it her own. She sits within a threedomed greenhouse with walls blanketed by vines of kelp and seaweed and swimming with deadly aquatic creatures. Within the dark, polluted lair, Juliya's team falls into madness. One by one, Biandra's hallucinatory tricks destroy them, leaving each of them within her grasp. Believing all is lost, Juliya finds a glimmer of hope in a crackled communication one of the members of the party must be alive. She must send out one more group of brave adventurers to bring down Biandra for good and reclaim the underwater dome. Will the adventurers find the lost orc rogue, fight their way in, and investigate through the biodome maze? Or will they be confined to the underwater maze of Conatha in madness, trapped with the Hag of Conatha herself? Pgs. 35-41

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

The ancient world of Harth withers beneath its dying sun…but it’s not dead yet. The land is still riddled with villages in danger, cultists in caves, angels gone mad, eldritch horrors making strange deals, raging dragons, bandits in the woods, and cruel monsters lurking in every shadow. These 13 adventures span a wide variety of locations, environments, creatures, and genres. They are meant for use as quick-play sessions or one-shots, or to be dropped into campaigns as side-quests. These are linear dungeons and mini-quests full of interactivity and strangeness, encouraging exploration, risk-taking, and creative combat. ADVENTURE TYPE: One-Shot / Low Level / Combat / Exploration / Village / Wilderness / City / Subterranean / Dungeon Delve DESIGN NOTES These 13 adventures are intended for low-level characters around Level 3 Overall, these adventures tend to be linear dungeon delves in caves or single buildings 93 unique encounter locations 69 original magic items 71 original monsters (with 28 illustrations) 13 maps/diagrams Each adventure runs 2-4 hours in length

The Pearl of Madness is a companion adventure made to go along with the events unfolding prior to the core adventure founding Folio #14 (WS1 ). It contains the information needed to run a side adventure that will help characters gain a degree of experience before setting out into the interior of the Isle of Jade. Thunder booms on the north of the isle and a dark rain falls on the inland swamps prompting the village chief to deny the characters canoes for their journey for another day. This respite offers the characters a chance to participate in a village tradition, the pearl dive. With whispers of great wealth at the bottom of a secluded cove, the players prepare for a dive that will provide more than the mundane. When the Isle of Jade begins to rumble, the islanders cancel the player's expedition to the inland. However, it is still a beautiful day for a pearl dive. Can the players find fortune in the tranquil waters of a hidden cove, or does something more sinister lurk there? This adventure is formatted to both 1E & 5E gaming rules.

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.

Terror Under the Sea The peaceful undersea village of Sequavia has been mysteriously abandoned. It looks like all of its Cheltarian residents have just stopped what they were doing and left. It’s up to a party of stalwart undersea adventurers to find where they all went, and bring them home. This Tales of the Valiant Compatible One Shot Adventure Provides: • A small dungeon for PC’s to explore • Statblocks for important NPCs. • 8 magic items that aren’t what they seem

Twenty years ago, the humans built a dam and flooded Gormelin Valley. They drove the Cinderborn goblins away from their land. But now the Cinderborn are back and they want vengeance. The dam must fall and the human towns must drown! Damnation is a set of two parallel adventures that cover the same events, locations and characters. In The Heroes' Tale, the players control a traditional heroic party. They get to attend a wine festival, save a town from a flood, dive to the bottom of a lake, choose between retaliation and negotiation, and face a demon atop the dam as he attempts to demolish it. The Goblins' Tale tells the other side of the story, allowing players to take control of a party of goblins. As the Cinderborn, they must deal with human spies, sneak into a wizard's tower, trigger a catastrophic flood, choose between peace and vengeance, face their own demonic leader, or aid him in breaking the dam. Also included: maps and goblin pregens!

The lerendi princess, Corinna, has disappeared. She set sail aboard a ship of the Minrothad Guilds - the guilds whose ships have been pirated and plundered for many weeks. Trade is horribly disrupted as many ships leave, never to be seen again. The guild masters now call for adventurers of great skill and renown. They offer small fortunes to any who can help them discover who is pirating their ships. But most importantly, to any who can rescue the princess. Can you and your party of adventurers defeat the dangers that lurk in the dark depths of a terrifying sea? Or will you find a watery grave within the cold confines of a murky sea floor? This game adventure contains special rules for underwater adventuring. TSR 9079

Not so deep in Lake Marione an amulet sinks. This adventure is set in the town of Marione where PCs will be asked to retrieve a lost amulet. I hope you enjoy the adventure! A D&D 5e One-Shot Adventure