Ruins of the Grendleroot is a book of ten easy-to-prep and easy-to-run adventures for the fifth edition of the world's most popular fantasy roleplaying game. Designed for characters of 1st to 5th level, these adventures take place in the caverns, chambers, tunnels, and ruins of Blackclaw Mountain, within which lurks a strange otherworldly sentience known as the Grendleroot. Ruins of the Grendleroot focuses on the sense of mystery and wonder that comes from exploring ancient ruins and lost chambers. The central hub of these adventures, Deepdelver's Enclave, is a frontier outpost overlooking the ruined city of Shadowreach, set deep within the mountain. In Deepdelver's Enclave, adventurers and explorers recount tales of their explorations, trade treasure and artifacts, and enjoy their shared love of uncovering the mysteries of the mountain.

This adventure begins with the party chasing down a thief who has procured the crown of a local Marquis. The trail goes to a northern border community in the dead of winter and potentially ends at the ruins known as Valtarius's Retreat which secured the border in the “old days”. The ruins are currently home to a dreaded Dracolich who will most likely not care to be disturbed by a group of adventurers! Can the party recover the crown and remain alive?

Phandalin is a great location from which PCs can adventure. The information in this supplement can be used in conjunction with Lost Mine of Phandelver, After Lost Mine, other adventures set in and around Phandalin, or used to add more flavor to any town. Nine of the NPCs featured in this supplement can be found in Lost Mine of Phandalin and ten others were introduced in After Lost Mine, but each has added information. The rest of the material here is new. 2 New Backgrounds; 2 New Feats; 3 New Adventure Hooks

Set for initial level PCs, this short scenario utilizes a shortcut through a mountain range. The players are in a hurry to get to town for an adventuring opportunity and all they need to do is get through a crevice. Unfortunately for the new delvers, the gap is home to a trio of bandit brothers and other obstacles!

A level 9+ hex-crawl adventure by D. M. Wilson and Sarah Brunt. A portal leads adventurers to a comet of fire and ice hurtling through the void of space. Can they survive prehistoric beasts, warring factions, and the comet’s impending doom, to find priceless treasures and a way home? For Old-School Essentials (OSE) Included as one of four adventures in "Old-School Essentials Adventure Anthology 1"

A Dreams of the Red Wizards Epic The treachery and master plan of Thay are at last revealed—and heroes are needed for a final assault to prevent the return of one of Faerûn’s greatest evils! Part Five of the Storm King’s Descent series of adventures. A Four-Hour Epic for 11th- through 16th-Level Characters and 17th- through 20th-Level Characters. Optimized For: APL 13 and 18 This adventure also includes rules for single-table play. Content warnings include: cold weather hazards, possession, and slavery

The adventure takes players from a town devastated by an unexpected flood, through a drowned land where nature is turned upside down and desperate families cling to the roofs of their ruined homes, hiding from the monstrous products of a disordered world, through the strange tomb of an ancient race, to a profundal zone, hidden for millennia and now exposed, and finally to the Observatory itself, an eerie abandoned treasure palace, where they will encounter a pale and unexpected terror which will seek to claim their lives. The adventure is suitable for a lucky mid-range party, a stupid high-level party or an exceedingly clever low level party. It is difficult, with a meaningful possibility of character death. Should you find them, and defeat their guardians, the treasures of an ancient culture will be yours. At the final point of the Observatory is a glimpse of another world. Published by False Machine Publishing

A high octane, edge of your seat, seat of your pants, run and gun thrill ride for your 5th Edition Dungeons and Dragons game. Life was peaceful in the pleasant village of Thornyfoot… until the Kobolds of nearby Crag Canyon started kidnapping their kids! Now the distraught villagers turn to a rag tag group of adventurers, who just happened to be having a drink at the local inn, to save the day. Do your heroes have what it takes, the right stuff, the metal, the intestinal fortitude, to fend off the Kobold Hunting Drakes, face the Kobold Commandos, take down the Kobold Air Cavalry and yes… defeat the Kobold Covergirl with the Gun? Will they climb the treacherous canyon, survive the forest gauntlet, storm the fortified keep, raid the dastardly dungeon and thwart the big bad evil nefarious kobold plot? Or will they die a horrible, brutal, violent, traumatic, explosive death? There’s only one way to find out. Killer Kobolds! Action just leveled up. Killer Kobolds is designed for a party of four to eight characters of levels 8 through 12, but could readily be tweaked to accommodate parties of lesser or greater strength. Intentionally set in an entirely generic small village in need, Killer Kobolds can be easily dropped into any Dungeons and Dragons setting. Recently updated with a Yawning Portal cameo, the content within fits perfectly into any Tales of the Yawning Portal campaign, slotting perfectly between White Plume Mountain and Against the Giants. Additionally, it could readily be worked in to your Tyranny of Dragons, Elemental Evil, Rage of Demons or Storm King’s Thunder campaign.

This adventure is designed as a side quest that can be inserted into an ongoing adventure or campaign. It involves a series of three linking scenes (and an optional fourth research scene between the others) that can be placed in between the action of whatever other event the party is undertaking. Ideally the scenes of this side adventure should be spread out and inserted into the game over several sessions of play.

A great evil force descended on the town of Phlan years ago. The townspeople were all either killed or driven away, and Phlan became (literally) a ghost town. Fifty years later, the survivors are ready to reclaim their town. But they need a band of strong and brave adventurers to lead the fight-they need you. Ruins of Adventure is a set of connected short adventures written by James Ward, David "Zeb" Cook, Steve Winter and Mike Breault-four names familiar to all AD&D game fans. It uses the same setting, locations and characters as the classic computer game Pool of Radiance by Strategic Simulations, Inc. In fact, many of the scenarios here in Ruins of Adventure will provide important clues to the successful completion of Pool of Radiance. TSR 9238

The chase to save your family continues! After your encounter at the cove, you head south across Esaq to try and catch the slavers. With some experience under your belt, you are feeling more confident about your fighting ability, but it is about to be tested yet again. This scenario picks up where DQ1 left off and is the middle of a trio of adventures.

FQ5 – Journey to Oblivion continues the Filbar Quest Series and begins in The Knolls with word that Baron Wizzel requests your assistance. A humanoid threat has been growing near the small town of Oblivion. The baron will speak with the party and offer them a large reward to perform a scouting mission. The baron and other nobles are attempting to gather their forces but would like an idea of what they are going to face. With the reputation of the PCs the baron feels that the group is more than capable of the mission.

The company discovers the Easterly Inn, a piece of the Shire in the land of the Beornings. But the Wild is still the Wild, and it takes more than Hobbit cooking to keep adventures at bay; in no time, the companions find themselves involved in the search for a missing trade caravan. Their quest will put them on the road to the High Pass, and see them go over hills and under hills. Published by Cubicle7

This setting was used in the FN series and like the others in the FA series, it was used as an area for multiple adventure opportunities as well as a semi-safe haven. The main community in the area is the Village of Tomore. This community is offered as a free download! With a multitude of side adventures this area helps mid-level adventurers increase their experience point base. Close to this area is the previously published Sunken Temple of Bulu and the Ruins of Tarlac Keep.

Claiming to possess Hartkiller's Horn, Ryndölg makes his move to take control of the Hartsvale. The non-giant residents have been pressed to declare their allegiance or be destroyed. Do they swear fealty to Jarl Ryndölg, or is there another option? Is there another contender to the throne? Sometimes the best choices can be the most dangerous. A Four-Hour Adventure for 5th-10th Level Characters. Optimized for five 8th level characters.

A cloud of dust forms over the horizon as a titanic army of evil threatens the entire civilized world! The Master of the Desert Nomads and his legions are back, and they form the greatest threat that you have ever faced. You must persuade powerful rulers to join you cause, stave off threats to the alliance, and lead your armies to victory! This adventure contains a full-color map of the D&D Expert Set game world, 200 counters, and a special expansion of the War Machine mass combat rules that allows you to fight the entire war as a strategic wargame! Major battles and engagements can be fought using the BATTLESYSTEM Fantasy Combat Supplement for incredible tabletop action. Never-before-published information on all the nations of the Expert Set game world provides background and detail that will enrich your campaign. This adventure includes large-scale battles and uses an expansion of Douglas Niles and Gary Spiegel's warfare system, "The War Machine", developed as part of the D&D Companion Set (BECMI Ed.) from 1984. "Red Arrow, Black Shield" is more than just a follow-up to X4/X5; it's a lynchpin for the entire B/X/CM adventure sequence. The players travel through many lands that were home to past adventures, and their past interactions with those places could affect diplomacy in this new adventure. TSR 9160

Stonefang Pass wends its way through the mountains of the Stonemarch, home to brutal tribes of orcs. The time has come to clear the pass and gain a foothold, so that it can be used for trade between the town of Winterhaven and the lands beyond the mountains. Brave adventurers are needed to rid the pass of monsters and liberate Stonefang Keep from the orcs. Who’s up for the challenge?

The white dragon Hinterbite has kept the barony of Icenvale ruler-less and poor for centuries. But now his power and that of his secret supporters is threatened by the popularity of an heir who hopes to make a change for the betterment of the people. Can the PCs take on the dragon and his minions and restore power to the barony's rightful ruling line? Download this new adventure by Owen K.C. Stephens and let your PCs face the dangers of the dragon lair! Fait Accompli is suitable for 12th-level characters. At its most basic level of use, Fate Accompli is a straightforward quest to clear a dungeon and slay some dragons in an arctic climate. However, it also includes political elements that you may either may play down or use to expand the scenario into a mini-campaign, as you wish. Fait Accompli is a short adventure for four 12th-level characters. It is set in the wilderness north of a minor border barony that has at best an arms-length relationship with any larger nation. Though the adventure requires all these elements to work, it can be set on the outer edge of any kingdom near an arctic region. As always, feel free to adapt the material presented here as you see fit to make it work with your campaign.

Your time in Queen’s Point has been productive and your level training is complete. As you relax in the Frothy Goblet Tavern & Inn you enjoy catching up with your compatriots over a steaming mug of mead! While you enjoy your time together you can’t help but overhear an interesting conversation at the next table over. A mountain man from his appearance is regaling a group of drunks about a foray into the wilderness and discovery of some old ruins. Those listening chime in with their thoughts on the potential for lost treasure…perhaps this guy may lead you to your next adventure?

Far above the village of Barovia sits Castle Ravenloft, the home and fortress of vampire lord Strahd Von Zarovich. Legends claim that Strahd flies with the bats and runs with the wolves to terrorize the countryside. Ancient tales also tell of dungeons and catacombs deep under the castle. Other stories recall the great halls, treasures, and glory of Ravenloft in centuries past. "House of Strahd" is a revision of the classic gothic horror tale I6: Ravenloft, one of the most popular adventures ever produced for the AD&D game. This version is updated for the AD&D 2nd Edition rules, and those from the Ravenloft campaign set. Count Strahd is now more powerful, and his castle is even more terrifying! TSR 9418