The classic module B1 - In Search of the Unknown is available for free for one week to celebrate the opening of DNDClassics.
Module B1: "In Search of the Unknown," forms a complete adventure for use with Dungeons & Dragons Basic Set. 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.
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.
Download B1 here!