From publisher blurb: Create Monster Lairs in Minutes! Enjoy quick, easy templates to spice up encounters, travel, and boss fights in a variety of weather and terrain. Previously released individually, this Elemental Omnibus collects five of our bestselling Extreme Encounters: Weather & Terrain books: Air, Cold, Earth, Fire, and Water. Enjoy magical and nonmagical environment rules as well as monster and treasure ideas for: Air (including cloud castles and storms) Cold (including ice, sleet, and snow) Earth (including caves, forests, and mountains) Fire (including burning buildings and volcanos) Water (including fog, floods, and sea voyages) We also give you options to increase the threat level of our magical terrains, right down to granting hostile creatures in them limited spell lists or other fun terrain-themed abilities!