The first in the "R" series of D20 System dungeon modules by Necromancer Games, Rappan Athuk -- The Dungeon of Graves: The Upper Levels is the grand-daddy of all dungeon crawls! This dungeon of caverns, passages, traps and hidden chambers defies even the most experienced adventurer to travel its halls. This module features six levels of this evil, multilevel dungeon, including monsters your characters have never imagined in their worst nightmares. Rappan Athuk awaits!