This deluxe adventure takes heroes into the ruins of Gardmore Abbey, once the base of a militant order of paladins devoted to Bahamut. According to legend, the paladins hid a dark artifact in the abbey for safekeeping, and evil force gather to assault the abbey and take it back. What the legends don't tell is that this artifact was actually the Deck of Many Things.

This adventure bring characters into the extensive dungeons beneath the ruins - dungeons that are warped and twisted with the raw forces of Chaos surrounding the cards of the deck, forces that drastically alter the place with each successive visit.