Doomkeep
The three of you are a group of adventurous wanderers. You have journeyed to a far-off land in search of the fabled ROCK OF AGES, a mighty artifact which is rumored to confer everlasting youth, strength and health to its possessor. You have determined that it is somewhere in this vast land, but the legends place it in at least a dozen different places.
The Second Official AD&D Masters Tournament. Pregenerated characters are referenced, but not provided. There are several original monster in here with bare-bones statics (AC, hp, Attacks, and Damage)