A "Deluxe Boxed Set" adventure for character levels 10 to 15, this Advanced Dungeons & Dragons (2nd Edition) supplement pits a party of adventurers against the subterranean denizens of a mountain and their mistress. Players will need all their wits about them as they face cunning foes, deadly traps, puzzling conundrums and, of course, one very nasty dragon. The box contains: - 3 adventure books, detailing both the land around the mountain and the mountain itself - reference cards - player handouts - Monstrous Compendium sheets - Cardstock standups and plastic bases - 6 poster maps The special effect of the mountain (it shifts through the planes) makes the adventure appropriate for any setting.