From publisher blurb: This sequel to A Dozen Dungeon Hazards includes twelve new hazards to throw at your players the next time they expore a dungeon. The hazards described in this PDF are: Environmental and Terrain Hazards Collapsing Chamber Crumbling Stairs Destroyed Floor Steam Vent Fogs, Fungi, Mold, and Slime Door Moss Doppleganger Mold Draconic Fog Harmonic Lichen Hellish Fog Pit Mushrooms Planar Mushrooms Spectral Slime