


The first layer, named Pazunia after the demon lord Pazuzu, was described as a barren, dusty place baking under a red sun, broken only by great iron fortresses, huge holes in the ground, and the river Styx. It was possible that the number of layers was infinite, but no one could be certain. Some estimated that the Abyss had 666 layers, while the Fraternity of Order claimed to have catalogued 679 layers.

In the Great Wheel cosmology model, the Abyss was an Outer plane on the Great Wheel connected to the Astral plane, Pandemonium, Carceri, and the Outlands.
