The Brigand Caves is the first supplement of material "left on the cutting room floor" during the creation of the classical megadungeon, Stonehell Dungeon. A group known as the "Ghost Beggars" are using a set of natural caves as a hideout to lick their wounds after a failed highway robbery. In addition to the One Page Dungeon template used to create the map and legend, there is background material and a new monster (the highwayman).