The heroes arrive at the eponymous Keep on the Borderlands, a fortress on the edge of civilization built to stave off the chaos and evil of the wilderness. Using it as a home base, a party can make forays into the surrounding wilderness, encountering monster and marauder alike. The centerpiece of the adventure is certainly the CAVES OF CHAOS, a network of tunnels and caverns found in the walls of a nearby but isolated ravine. It is here that hordes of evil humanoids have made their home. Through combat and negotiation, the players can try to explore and map out these caves, perhaps with the aim of accumulating valuable treasure or even cleansing the land of evil creatures. However, even the Caves are not all they seem. Beyond the goblins and kobolds lurk dark horrors: cults dedicated to fiendish chaos and a Minotaur's enchanted labyrinth await the unprepared adventurer. But for the hero who is brave, clever, and fortunate in equal and sufficient measure, great treasures and glory await in the Caves of Chaos that lie beyond the Keep on the Borderlands! TSR 9034

To travel further into the Underdark the party must cross a bridge spanning a deep chasm. But to cross, they must pay the toll, or risk another route.

You've just inherited a castle! And now for the bad news... All it needs is a good cleaning out. Pgs. 6-14 & 36

Have you ever wondered what it would be like to actually encounter an area where someone has used Guards & Wards, Symbol, and other spells to actually fortify a location against casual intrusion and thievery? If you want to find out just how deadly a wizard's "getaway cabin" in the mountains can be when the owner isn't there to let you in, this is the adventure for you and your players. Suitable for a single session of play (unless characters get killed, forcing a retreat and later return), there's only one combat encounter, but the traps are deadly. Not recommended for parties below level 12. All of the defenses are based on actual PHB spells, although a couple are assumed to have been bound into items or interactions within the dungeon. This dungeon is originally from the "Against the Idol of the Sun" high-level hexcrawl campaign.

As adventurers, you may think you have seen everything: certainly your skills have brought you through unimaginable dangers. But now you suddenly find yourself in a place unlike any through which you have traveled: astounding, dangerous, and even amusing things confront you as you journey, both indoors and outdoors, through unique and wondrous realm of Dungeonland. This adventure was first conceived by E. Gary Gygax as part of the Greyhawk Castle dungeon complex and has been the source of challenge and fun for many skilled players of the Advanced Dungeons & Dragons game. It is finally available to all players and can be added to your existing campaign with ease. "Dungeonland" is also designed so that it may be used along with its companion scenario, EX2: "The Land Beyond the Magic Mirror." Still, "Dungeonland" may easily be played on its own, and should offer hours of excitement in its strange landscape! TSR #9072

Things are darkest before they go totally black. He wears black, hires orcs, and looks depraved - but don't be fooled. He's far more dangerous than he seems. Thaddigren Dentiata recently arrived in the village of Sisak, and within 3 months had constructed a great tower on the outskirts. The villagers have become more wary of him, since he employs the help of orc henchment (albeit polite ones), and also is suspected of using dark magic. Since then, livestock has begun disappearing from the surrounding pastures, and two drunk men fell upon a terrible fate when they went to investigate the tower secretly. One was killed and the other remains missing. The villagers have confronted Dentiata, but he and his henchmen politely turned aside their questioning. The players arrive just after one of the town elders was taken by orcs from the village after trying in vain to rally the rest of the townspeople. The players will spend some time in the village gathering information and then attack the tower itself, ending in a final battle with the evil wizard. The module provides details on all buildings in the town as well as all NPCs and stores. Pgs. 6-24