From publisher blurb: The wizard voiced his objections, but in the end we had no other choice: the deserted dwarven halls offered the swiftest and safest way to the other side of the mountain range. We knew it would be dangerous, that we would have to open the gates sealed against the long-ago gnoll invasion. Folk still whisper of cannibal gnolls trapped forever in the dark. Others say there are worse things to be found: giant centipedes, portalweb spiders. The wizard brushed aside these concerns, though. He seems to fear something worse still... This is a large scale, system-agnostic dungeon crawl designed to slot easily into whatever kind of campaign you might be running. Use it as a dwarven or gnoll settlement, a random wilderness encounter, or a challenge between your party and their objective.