This Dungeon Master's Guide from TSR is a must-have for any fan of advanced Dungeons and Dragons. It contains everything you need to know to create and run your own adventures, including detailed information on the game's characters, creatures, and spells. The guide also includes a variety of helpful tips and tricks for Dungeon Mastering, making it an essential tool for anyone looking to take their D&D game to the next level. Whether you're a seasoned player or a newcomer to the game, this guide is sure to provide hours of entertainment and inspiration.