From the back of the book
EXPLORE A SHATTERED DUNGEON WITH A DARK SECRET
Centuries ago, forces of good and evil collided in a titanic battle at the mountain fortress of Slaughtergarde. Armies of mortals and angels and defeated a rampaging demon horde, banished its demon prince, and tore Slaughtergarde apart, hurling it back into the Abyss. However the destruction of Slaughtergarde was incomplete. Parts of the fortress were embedded underneath the Valley of Obelisks, buried for all time. Now, malign forces have found Slaughtergarde’s dark chambers, and they toil ceaselessly to restore the magic gates that will reconnect Slaughtergarde to the Abyss. If they aren’t stopped, a new demon horde may emerge from the shattered fortress to rampage across the world.
This adventure takes characters from 1st level to 6th level, and it includes material that can be used to expand the story to an entire campaign. Inside this folder are a 64-page Adventure Sites book, a 64-page Campaign Guide, a 16-page Player’s Guide, 8 pages of illustrations to enhance the adventuring experience, and a double-sided battle map designed for use with D&D Miniatures.