The first introductory Module for the basic Dungeons and Dragons line in 1979.
From the cover:
This package (a cover folder with maps and descriptive booklet within) forms a complete module for use with BASIC DUNGEONS & DRAGONS. It is especially designed as an instructional aid for beginning Dungeon Masters and players, specifically created to enable new Dungeon Masters to initiate play with a minimum of preparation. With only minor modificatiions, this module is also eminently suitable for use with ADVANCED DUNGEONS & DRAGONS as well.
In addition to descriptive and situational material, this module also includes special informational sections giving: background history and legends, listings of possible monsters and treasures and how to place them, a list of adventuring characters, tips on various aspects of play for the Dungeon Master, and helpful advice for starting players.
If you enjoy this module, look for more releases in the D & D family from TSR, The Game Wizards!