A nicely compact gem for Dungeon World, designed to fold out in play into a full-fledged setting. Reminds me of one of those dinosaur-in-a-pill toys: there's not much to see if you're just reading through, but take the advice in these pages to heart and Dis will expand through play.

Two particular notes: Invisible Cities and the "In a Wicked Age" oracles are both tremendously helpful for seeding new parishes, and the Road Wardens provide a great way to keep deceased PCs in the game - while still representing Major Consequences.

More advice here - http://www.story-games.com/forums/discussion/18292/dwplanarch-codex-how-to-bring-dis-to-life/p1