Continuing the series of 'slide-in' adventures and encounters books, including Ruins of Hyboria and Adventures in Hyboria, Catacombs of Hyboria is the perfect Games Master's aid when the players take the route never guessed! Simply slide in a catacomb from this book, be it in the wilderness, jungle, desert, or city, and your players will marvel at your foreplanning - while you have plenty of time to regroup and work out how to get them back on track!