# Layers of Pandemonium *Source: Dungeon Master's Guide (2024) p. 206* **Layers of Pandemonium** | Layer | Description | |-------|-------------| | Pandesmos | Howling winds, dark streams bound for the River Styx, and blowing snow pour through vast, desolate caverns. | | Cocytus | Winds blowing through narrower tunnels create a stronger force and louder wails, making this the so-called "Layer of Lamentation." | | Phlegethon | Tunnel walls absorb light while water creates intricate rock formations. | | Agathion | Sealed-off tunnels are largely inaccessible from elsewhere, making them ideal as vaults for ancient secrets. | ^layers-of-pandemonium