Publisher's blurb: Far down in the twisting caverns of Khyber, monsters beyond imagination roam and hunt, untouched for centuries by the light of Eberron’s sky: mind flayers, beholders, dolgrims, dolgaunts, and a league of other creatures just as sinister and foul. These aberrations are the children of experimentation, the projects of ancient invaders from the realm of Xoriat: the daelkyr, lords of madness and corruptors of the natural order. The ultimate agenda of these depraved beings is unknown: the optimistic believe they seek world domination, and the pessimistic can only guess at fates far worse. "Madness of Xoriat" is a collection of maddening daelkyr content for your Eberron campaigns! This fully illustrated 23-page guide includes: 1 new player race: the Daelkyr Creation, victim to the terrible experiments of an aberration and made to take on its traits 1 new subclass: the Symbiont warlock patron, a source of eldritch power that burrows deep into the wielder and alters their mind 8 new daelkyr lords: 4 mentioned in Eberron: Rising from the Last War, and four entirely new creatures exclusive to this book, each complete with lore, statistics, lair actions, regional effects, and a table of madness effects A full page of discussion about using madness effects respectfully in your games An alternative printer-friendly white layout!