From the back of the book: The dark and dangerous world of Etharis, home to the Grim Hollow fantasy setting, challenges all who live there. And the deadliest challenges to those who trod the adventuring roads of Etharis are the terrifying, bizarre, and fantastical beasts who lurk in the shadows or tower over the cities. From corrupted humanoids bent and twisted by otherworldly forces, to enervating undead seeking to snuff out the light of life, and putrid aberrations serving masters imprisoned in realities beyond the mortal realm: these forces, and more, challenge those seeking peace and prosperity in a hostile world. Grim Hollow: Lairs of Etharis provides gamemasters with 20 ready-made lairs, populated with some of the most dangerous monsters within the pages of Grim Hollow: The Monster Grimoire, their servile minions and treasure. Designed to challenge characters ranging from levels 1-20, and offering a variety of plot hooks and adventure types, these lairs will challenge even the most battle-hardened souls.