In this scenario, the adventurers pass through magical portals into a series of interlinked chambers. The characters are encouraged by a young scholarly mage to voyage into the Sea of Pastures, to explore a mysterious island connected with a number of recent shipwrecks and disappearances. The island is grassy and windblasted, but eventually the characters discover a stone door leading into a subterranean complex. There, they discover 18 rooms linked by secret passages and magical portals. Most of these rooms have been ransacked by a variety of other survivors, human and monstrous. These survivors are likewise trapped within the labyrinth and are either eking out a miserable existence there or else desperately searching for a means of escape. Also within the building are a number of extraplanar creatures, collectively known as gingwatzim, who can shift between various forms: an energy form (glowing ball of light), an inanimate form (usually a magical weapon), and an animate form (an animal or monster). Eventually the characters may find the exit, and are once again deposited on the dreary islands to await rescue. TSR 9110

This module was originally used for the AD&D Tournament at Origins '79. Your party is lost! You should never have abandoned the ship and struck out into the marshes, but your pursuers were closing on your trail, and it seemed the only way. Stumbling onward through the fens, your party makes for higher ground ahead. As you cross the ridge, you see a clearing before you. There in an ancient ruin - a worn and overgrown pyramid fills the courtyard, shining in the moonlight, seeming almost brighter than the moon itself. TSR 9032

A shadow from the past, the Ghost Tower of Inverness has loomed ever larger in the mind of the great Seer of Urnst, Now he has convinced the Duke that an expedition should be organized to go to the ancient keep and recover its greatest treasure — the fabled Soul Gem. TSR 9038