Quickleaf
Legend
Had the Deck in the hands of a crypt thing (a type of undead that could teleport PCs around the dungeon), which requested that a visitor draw a card. Players wisely refused, got teleported, reemerged in crypt thing's chamber which was sort of at the center of a labyrinth layout. Led to some colorful debate about whether they needed to draw to escape, and who would draw, until one player remembered they had a Ring of X-Ray Vision and tried to see the top card. I think I punted (was a young GM then), and had them see a card with the image of the castle on the surface, and crypt thing teleported them there.