Publisher's blurb: Mega Tiles are just what the name implies: really big geomorphs compatible with Dungeons in Blue tile sets. Each Mega Tile is a single geomorph covering four times the area of a standard-sized tile. These larger tiles allow bigger caves and chambers to be depicted, and also serve to break up the gridded feeling geomorph-based dungeons can sometimes have. Mega Tile Nineteen is a cavern complex connected to a more traditional dungeon by a set of fortified stairs. A large crevice crossed by a pair of bridges serves as a moat.