From the back of the folio: ALL THE CITADEL'S DARKEST DEPTHS REVEALED The Scarlet Citadel Map Folio is a collection of all the maps Game Masters need to run the massive Scarlet Citadel dungeon-crawling adventure by Kobold Press. The folio's maps include: Ten beautiful, full-color battle maps measuring 24 inches by 36 inches when unfolded, each overlaid with a grid of 1-inch squares perfect for tabletop RPG miniatures. Several 8-inch-by-10-inch overlay maps that can be placed atop the battle maps to depict unique traps, hazards, or other features of the dungeon. Coated surfaces that can handle any dry erase, wet erase, or even permanent marker.