Dungeon Module L1: The Secret of Bone Hill - A classic Advanced Dungeons & Dragons adventure module published by TSR Hobbies, Inc. in 1981, designed by Lenard Lakofka for character levels 2-4.

This dungeon module contains complete information on the town of Restenford and the mysterious surrounding areas. The adventure introduces players to the sleepy village where bands of evil creatures prowl the hills overlooking the town, seeking unwary victims. The module includes detailed encounter tables, background information, numerous maps of the town and surrounding dungeon areas, as well as various points of interest that can be incorporated into an existing campaign or used in conjunction with The World of Greyhawk fantasy world setting. The cover features iconic fantasy artwork depicting a demonic red devil-like creature confronting a skeletal warrior, establishing the dark tone of this foundational adventure.