The Drow have forged a dark pact with the creatures of the realm. For years they have been building their army and collecting relics to make their assault on the world above. The people above don't even know how deep the Underdark extends right beneath their feet.

This map contains secret portals that the enemies use to circumnavigate the traps set in their dungeon. Each portal room is marked with a key rune on the ground to identify the portal. The portal should be described to the party as having runes around the gate that when pressed glow. This is how they can figure out how to use the portals with purpose. The Dungeon Master may even decide the portals have a way to send them to another dimension! (Maybe a percentage chance of failure on each use, or a rune that doesn't match up to anything in the dungeon).

This dungeon is filled with secret doors and traps, along with GM notes for running the dungeon encounters.