From the publishers blurb:
The final resting place of Sorn is a crumbling ruin; a barrow mound of piled stone and dirt. A forgotten tomb from a previous age. Locals are wary of it, their dreams haunted by a stone coffin and a skeletal king.
Barrow of Sorn is a 20 room dungeon for 3-6 characters of levels one and two. It was created for Crown, an old school fantasy roleplaying game, but can be adapted to any similar OSR type game with relative ease. It assumes that you are using gold for XP; the treasure is large and it contains a dozen magic items (from potions and scrolls to a magic sword) which the characters may acquire. The dungeon is not perfectly balanced and there are portions of it which may be deadly to a low-level party or that can be easily overcome with quick thinking.
It is intended to be run as an introductory adventure, but could just as easily be dropped into any area of your own setting where a lonely barrow could go unmolested for a few centuries.