The Crypt of Never Shade

Publisher's blurb:

A Dark Realm Maps Adventure by Toby Lancaster

This roleplay scenario and map set is designed for use with a range of game systems including Dungeons and Dragons. It’s a generic design that can and should be tailored to the DM’s needs, the monsters added where suggested and the treasure properly designed for the incumbent system. This is an undead themed quest so preparing your adventurers for such opposition would be wise, although it can be tailored to such enemies like Skaven or Tomb Raiders. It is a small dungeon with four small levels and approximately 8-10 hours of play time, but of course this may vary depending upon the DM’s requirements and style.